Griff 500 cut out.
Discussion
My Griff 500 has just cut out and won't start.....I'm currently waiting for the RAC. When I put the ignition on the fuel pump does not prime, I had the Rovergauge with me but for some reason it will not connect. I have checked ecu fuses and they are fine, I've also replaced the fuel pump and ecu relays as well but no joy.
Any suggestions? ?
Any suggestions? ?
Just home via a breakdown recovery service and the car pushed back into my garage.
I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
das2000m said:
Just home via a breakdown recovery service and the car pushed back into my garage.
I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
Hi Dave, hope you’re well. I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
Sorry to hear of your problems. Could this be an immobiliser issue? That could explain why the fuel pump isn’t priming when the ignition is turned on?
Andrew
I remember you posted a similar problem a while back.
The lack of the Rover Guage link could be significant or perhaps a red herring.
Perhaps an immobiliser problem Send me a personal mail and I can forward an Immobiliser schematic so you can bypass it and rule that out.
As suggested above it could be an ECU failure, that would explain the loss of Rover Guage, anyone close to you with a Griffith or Chimera to swap ECU's.
Best of luck.
The lack of the Rover Guage link could be significant or perhaps a red herring.
Perhaps an immobiliser problem Send me a personal mail and I can forward an Immobiliser schematic so you can bypass it and rule that out.
As suggested above it could be an ECU failure, that would explain the loss of Rover Guage, anyone close to you with a Griffith or Chimera to swap ECU's.
Best of luck.
andrew_r said:
das2000m said:
Just home via a breakdown recovery service and the car pushed back into my garage.
I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
Hi Dave, hope you’re well. I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
Sorry to hear of your problems. Could this be an immobiliser issue? That could explain why the fuel pump isn’t priming when the ignition is turned on?
Andrew
The first thing I did this morning was to run a live feed to the F/pump....the pump ran for a couple of seconds and stopped (almost like it pressurised up and dead headed!!) so Im not sure if I have a few different issues.
TwinKam said:
Penelope Stopit said:
Just cut out and changed the pump
This must be the fastest fuel pump change ever made
This must be the fastest fuel pump change ever made
Read it again, Penny, this time including the word 'relays'... das2000m said:
andrew_r said:
das2000m said:
Just home via a breakdown recovery service and the car pushed back into my garage.
I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
Hi Dave, hope you’re well. I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
Sorry to hear of your problems. Could this be an immobiliser issue? That could explain why the fuel pump isn’t priming when the ignition is turned on?
Andrew
The first thing I did this morning was to run a live feed to the F/pump....the pump ran for a couple of seconds and stopped (almost like it pressurised up and dead headed!!) so Im not sure if I have a few different issues.
The Blue at relay terminal 85 is an ECU switched negative to activate the relay
Be careful supplying or earthing relay terminals 85 or 86 as you could easily damage the ECU or cause some other problem. you can without problems supply and earth these terminals if you have disconnected the wiring to them at their holders or the back of the fusebox depending what's fitted
Penelope Stopit said:
das2000m said:
andrew_r said:
das2000m said:
Just home via a breakdown recovery service and the car pushed back into my garage.
I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
Hi Dave, hope you’re well. I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
Sorry to hear of your problems. Could this be an immobiliser issue? That could explain why the fuel pump isn’t priming when the ignition is turned on?
Andrew
The first thing I did this morning was to run a live feed to the F/pump....the pump ran for a couple of seconds and stopped (almost like it pressurised up and dead headed!!) so Im not sure if I have a few different issues.
The Blue at relay terminal 85 is an ECU switched negative to activate the relay
Be careful supplying or earthing relay terminals 85 or 86 as you could easily damage the ECU or cause some other problem. you can without problems supply and earth these terminals if you have disconnected the wiring to them at their holders or the back of the fusebox depending what's fitted
I think I’ll remove the fuel pump and see if it is jammed as I said before when I jump it the pump makes a noise as though it’s seized....can’t think why I’d have these 2 issues at the same time though.
das2000m said:
Penelope Stopit said:
das2000m said:
andrew_r said:
das2000m said:
Just home via a breakdown recovery service and the car pushed back into my garage.
I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
Hi Dave, hope you’re well. I’ve had an issue with the car for a few months now..... intermittently misfiring for a few seconds at a time then it would then run normally again, on one occasion the car cut out as it did today on that occasion the car would fire and instantly die...after about the 6th attempt the car started and ran normally again. I have replaced the fuel filter, coil and ignition amplifier as well as checking all the earth points and cleaned the F/pump connections. Over the last 2 days I have done over 500 miles and was about 25 miles from home and doing about 20 mph in a small village when it cut out.
The fact that my Rovergauge would not connect to the ECU is puzzling me.
I’m glad it has finally broken down so hopefully I will get to the bottom of it as previously !each time the car “seemed to fix itself “!!
Sorry to hear of your problems. Could this be an immobiliser issue? That could explain why the fuel pump isn’t priming when the ignition is turned on?
Andrew
The first thing I did this morning was to run a live feed to the F/pump....the pump ran for a couple of seconds and stopped (almost like it pressurised up and dead headed!!) so Im not sure if I have a few different issues.
The Blue at relay terminal 85 is an ECU switched negative to activate the relay
Be careful supplying or earthing relay terminals 85 or 86 as you could easily damage the ECU or cause some other problem. you can without problems supply and earth these terminals if you have disconnected the wiring to them at their holders or the back of the fusebox depending what's fitted
I think I’ll remove the fuel pump and see if it is jammed as I said before when I jump it the pump makes a noise as though it’s seized....can’t think why I’d have these 2 issues at the same time though.
Penelope Stopit said:
TwinKam said:
Penelope Stopit said:
Just cut out and changed the pump
This must be the fastest fuel pump change ever made
This must be the fastest fuel pump change ever made
Read it again, Penny, this time including the word 'relays'... 
I was going to say, 'Oh don't bother' but, just for you (I don't see anyone else struggling)...
earlier das2000m very clearly said:
I've also replaced the fuel pump and ecu relays
Note his use of the plural.... relayS. 
Everyone else read that as he changed more than one relay.. .relays... d'ya think possibly the fuel pump relay and the ECU relay?
seeing as he mentioned those in the same sentence? And that does seem rather more likely in the context of awaiting Mr AA Man's arrival, doesn't it?And there was me thinking that you were the relay expert...
Two years ago, I set off to take my car to my TVR guy for some work. Got half a mile down the road, the car cut out and wouldn’t restart. Parked the car and walked home. Called the RAC.
When the guy came, as always with RAC men, he was an experienced mechanic who understood cars, having run his own garage for 20 years. He diagnosed it was a fault on the fueling side, but was not allowed to test fuel pressure at the road side.
I had a busy day planned the next day, so opted to fetch my trailer and take the car to my TVR guy myself, first sparrow fart the next day.
I took with me a few spares, including a spare ECU with a 400 chip in it. My TVR guy, let’s call him Mat, did a few tests and said he thought it was the ECU. I produced my spare, he looked surprised that I had one (got it in a job lot of spares), and plugged it in. Car started and ran ok.
So we opened the original one (my car was a 500) to swap the chip over, and there was the problem. About two years previously I had had a battery boil, which I spotted because there was acid (white fluff) on the carpet by the ECU. The acid must have got into the ECU, because two years later it had finally destroyed the wiring to a fuelling chip on the edge of the board.
So, your diagnosis of an ECU fault makes sense. See if anyone local can swap with you to test it. It will run even if the chip is for a different engine size.
When the guy came, as always with RAC men, he was an experienced mechanic who understood cars, having run his own garage for 20 years. He diagnosed it was a fault on the fueling side, but was not allowed to test fuel pressure at the road side.
I had a busy day planned the next day, so opted to fetch my trailer and take the car to my TVR guy myself, first sparrow fart the next day.
I took with me a few spares, including a spare ECU with a 400 chip in it. My TVR guy, let’s call him Mat, did a few tests and said he thought it was the ECU. I produced my spare, he looked surprised that I had one (got it in a job lot of spares), and plugged it in. Car started and ran ok.
So we opened the original one (my car was a 500) to swap the chip over, and there was the problem. About two years previously I had had a battery boil, which I spotted because there was acid (white fluff) on the carpet by the ECU. The acid must have got into the ECU, because two years later it had finally destroyed the wiring to a fuelling chip on the edge of the board.
So, your diagnosis of an ECU fault makes sense. See if anyone local can swap with you to test it. It will run even if the chip is for a different engine size.
Edited by QBee on Saturday 11th May 15:28
TwinKam said:
Penelope Stopit said:
TwinKam said:
Penelope Stopit said:
Just cut out and changed the pump
This must be the fastest fuel pump change ever made
This must be the fastest fuel pump change ever made
Read it again, Penny, this time including the word 'relays'... I was going to say, 'Oh don't bother' but, just for you (I don't see anyone else struggling)...
earlier das2000m very clearly said:
I've also replaced the fuel pump and ecu relays
Note his use of the plural.... relayS. Everyone else read that as he changed more than one relay.. .relays... d'ya think possibly the fuel pump relay and the ECU relay?
seeing as he mentioned those in the same sentence? And that does seem rather more likely in the context of awaiting Mr AA Man's arrival, doesn't it?And there was me thinking that you were the relay expert...
I,ve had a few proper ones having a dig at me just lately, "no problem it's an internet thing" I really did ask myself why the hell is TwinKam having a go, I mean the OP posted that he had changed the fuel pump and relays, well that's how I read it yet have now seen the light
I am laughing as I type this, I really did think the OP had quickly replaced the fuel pump at the roadside
I feel such a plonker now. Have a good afternoon, I apologise for testing your patience
QBee said:
Two years ago, I set off to take my car to my TVR guy for some work. Got half a mile down the road, the car cut out and wouldn’t restart. Parked the car and walked home. Called the RAC.
When the guy came, as always with RAC men, he was an experienced mechanic who understood cars, having run his own garage for 20 years. He diagnosed it was a fault on the fueling side, but was not allowed to test fuel pressure at the road side.
I had a busy day planned the next day, so opted to fetch my trailer and take the car to my TVR guy myself, first sparrow fart the next day.
I took with me a few spares, including a spare ECU with a 400 chip in it. My TVR guy, let’s call him Mat, did a few tests and said he thought it was the ECU. I produced my spare, he looked surprised that I had one (got it in a job lot of spares), and plugged it in. Car started and ran ok.
So we opened the original one (my car was a 500) to swap the chip over, and there was the problem. About two years previously I had had a battery boil, which I spotted because there was acid (white fluff) on the carpet by the ECU. The acid must have got into the ECU, because two years later it had finally destroyed the wiring to a fuelling chip on the edge of the board.
So, your diagnosis of an ECU fault makes sense. See if anyone local can swap with you to test it. It will run even if the chip is for a different engine size.
I’ve opened up my ECU and it is spotless inside, you mentioned swapping out the ECU, I have a friend with a 4.0 Chimaera but I’d be afraid to blow his if there is an issue. I agree it would be the easiest way. When the guy came, as always with RAC men, he was an experienced mechanic who understood cars, having run his own garage for 20 years. He diagnosed it was a fault on the fueling side, but was not allowed to test fuel pressure at the road side.
I had a busy day planned the next day, so opted to fetch my trailer and take the car to my TVR guy myself, first sparrow fart the next day.
I took with me a few spares, including a spare ECU with a 400 chip in it. My TVR guy, let’s call him Mat, did a few tests and said he thought it was the ECU. I produced my spare, he looked surprised that I had one (got it in a job lot of spares), and plugged it in. Car started and ran ok.
So we opened the original one (my car was a 500) to swap the chip over, and there was the problem. About two years previously I had had a battery boil, which I spotted because there was acid (white fluff) on the carpet by the ECU. The acid must have got into the ECU, because two years later it had finally destroyed the wiring to a fuelling chip on the edge of the board.
So, your diagnosis of an ECU fault makes sense. See if anyone local can swap with you to test it. It will run even if the chip is for a different engine size.
Edited by QBee on Saturday 11th May 15:28
So to recap....there seems to be no live from the ignition to the F/pump relay the IACV does not operate except when I put a live directly to the back of pin 86 I think it was ( which Penelopestopit warned me against) and I cannot get the Rovergauge to connect.
I have also changed out the Ignition relay and the ECU relay as well as the Fuel pump relay.
If I put a 12V supply down the Yellow wire from the Inertia switch the F/pump makes a noise like it’s jammed?
I have been trying to following the ‘Bible’ wiring diagram to try and trace the wires but I don’t understand why a wire would go into say Block B and does not continue through Block C am I missing something?. It also does not show the relays? Does anyone have some idiot proof wiring diagrams!! : (
TBH I’m starting to get a bit overwhelmed by it all.
Poster Loubaruch may well have all the information you need
das2000m said:
I’ve opened up my ECU and it is spotless inside, you mentioned swapping out the ECU, I have a friend with a 4.0 Chimaera but I’d be afraid to blow his if there is an issue. I agree it would be the easiest way.
So to recap....there seems to be no live from the ignition to the F/pump relay the IACV does not operate except when I put a live directly to the back of pin 86 I think it was ( which Penelopestopit warned me against) and I cannot get the Rovergauge to connect.
I have also changed out the Ignition relay and the ECU relay as well as the Fuel pump relay.
If I put a 12V supply down the Yellow wire from the Inertia switch the F/pump makes a noise like it’s jammed?
I have been trying to following the ‘Bible’ wiring diagram to try and trace the wires but I don’t understand why a wire would go into say Block B and does not continue through Block C am I missing something?. It also does not show the relays? Does anyone have some idiot proof wiring diagrams!! : (
TBH I’m starting to get a bit overwhelmed by it all.
So to recap....there seems to be no live from the ignition to the F/pump relay the IACV does not operate except when I put a live directly to the back of pin 86 I think it was ( which Penelopestopit warned me against) and I cannot get the Rovergauge to connect.
I have also changed out the Ignition relay and the ECU relay as well as the Fuel pump relay.
If I put a 12V supply down the Yellow wire from the Inertia switch the F/pump makes a noise like it’s jammed?
I have been trying to following the ‘Bible’ wiring diagram to try and trace the wires but I don’t understand why a wire would go into say Block B and does not continue through Block C am I missing something?. It also does not show the relays? Does anyone have some idiot proof wiring diagrams!! : (
TBH I’m starting to get a bit overwhelmed by it all.
Loubaruch said:
I remember you posted a similar problem a while back.
The lack of the Rover Guage link could be significant or perhaps a red herring.
Perhaps an immobiliser problem Send me a personal mail and I can forward an Immobiliser schematic so you can bypass it and rule that out.
As suggested above it could be an ECU failure, that would explain the loss of Rover Guage, anyone close to you with a Griffith or Chimera to swap ECU's.
Best of luck.
The lack of the Rover Guage link could be significant or perhaps a red herring.
Perhaps an immobiliser problem Send me a personal mail and I can forward an Immobiliser schematic so you can bypass it and rule that out.
As suggested above it could be an ECU failure, that would explain the loss of Rover Guage, anyone close to you with a Griffith or Chimera to swap ECU's.
Best of luck.
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