Mitsubishi Warrior Engine Fault Diagnosis Ideas req'd
Discussion
Guys,
A mate has a 54 plate crew cab warrior 2.5 litre Turbo diesel and its a bit poorly and we would apreciate some ideas as to why.
The symptoms are that its well down on power, very thirsty, and after a decent trip on the motorway, the engine check light comes on , the car enters limp mode, all power dissapears and it has to be almost idled onto the hard shoulder.
Once stationary turning the ignition off ( and then waiting for some sort of relay to make an audible click) then turning the ignition back on resets the ECU and the car can then continue in its poorly performing way. If you try to do this too quickly and don't wait for the relay to make its "click" noise the ECU is not reset and the problem continues.
The car has been checked out by a local garage who proclaim its down on power but can't find any stored fault codes as neither can the local Mitsubishi dealer. They suggested that the cat was blocked so a cat bypass system was purchased and fitted with absolutely no difference being felt whatsoever, apart from a distinct lightening if the wallet.
Anyone have any experience of this problem or any pointers as to what it could be.
Any help gratefully appreciated. To me the car/ truck is just a very slow overgrown Tonka Toy but my mate loves it and is thinking about chopping it in for another one, but I suggested he try to fix the one he has already before watching yet more of his cash go down the plughole of depreciation.
Cheers,
Tony
A mate has a 54 plate crew cab warrior 2.5 litre Turbo diesel and its a bit poorly and we would apreciate some ideas as to why.
The symptoms are that its well down on power, very thirsty, and after a decent trip on the motorway, the engine check light comes on , the car enters limp mode, all power dissapears and it has to be almost idled onto the hard shoulder.
Once stationary turning the ignition off ( and then waiting for some sort of relay to make an audible click) then turning the ignition back on resets the ECU and the car can then continue in its poorly performing way. If you try to do this too quickly and don't wait for the relay to make its "click" noise the ECU is not reset and the problem continues.
The car has been checked out by a local garage who proclaim its down on power but can't find any stored fault codes as neither can the local Mitsubishi dealer. They suggested that the cat was blocked so a cat bypass system was purchased and fitted with absolutely no difference being felt whatsoever, apart from a distinct lightening if the wallet.
Anyone have any experience of this problem or any pointers as to what it could be.
Any help gratefully appreciated. To me the car/ truck is just a very slow overgrown Tonka Toy but my mate loves it and is thinking about chopping it in for another one, but I suggested he try to fix the one he has already before watching yet more of his cash go down the plughole of depreciation.
Cheers,
Tony
Tony427 said:
Guys,
A mate has a 54 plate crew cab warrior 2.5 litre Turbo diesel and its a bit poorly and we would apreciate some ideas as to why.
The symptoms are that its well down on power, very thirsty, and after a decent trip on the motorway, the engine check light comes on , the car enters limp mode, all power dissapears and it has to be almost idled onto the hard shoulder.
Once stationary turning the ignition off ( and then waiting for some sort of relay to make an audible click) then turning the ignition back on resets the ECU and the car can then continue in its poorly performing way. If you try to do this too quickly and don't wait for the relay to make its "click" noise the ECU is not reset and the problem continues.
The car has been checked out by a local garage who proclaim its down on power but can't find any stored fault codes as neither can the local Mitsubishi dealer. They suggested that the cat was blocked so a cat bypass system was purchased and fitted with absolutely no difference being felt whatsoever, apart from a distinct lightening if the wallet.
Anyone have any experience of this problem or any pointers as to what it could be.
Any help gratefully appreciated. To me the car/ truck is just a very slow overgrown Tonka Toy but my mate loves it and is thinking about chopping it in for another one, but I suggested he try to fix the one he has already before watching yet more of his cash go down the plughole of depreciation.
Cheers,
Tony
I had a problem with mine which took an age to sort out. the truck felt down on power and wouldn't rev. if you dropped a gear it felt as if it was choking itself and revs would build only very slowly making it potentially lethal if you tried to overtake.A mate has a 54 plate crew cab warrior 2.5 litre Turbo diesel and its a bit poorly and we would apreciate some ideas as to why.
The symptoms are that its well down on power, very thirsty, and after a decent trip on the motorway, the engine check light comes on , the car enters limp mode, all power dissapears and it has to be almost idled onto the hard shoulder.
Once stationary turning the ignition off ( and then waiting for some sort of relay to make an audible click) then turning the ignition back on resets the ECU and the car can then continue in its poorly performing way. If you try to do this too quickly and don't wait for the relay to make its "click" noise the ECU is not reset and the problem continues.
The car has been checked out by a local garage who proclaim its down on power but can't find any stored fault codes as neither can the local Mitsubishi dealer. They suggested that the cat was blocked so a cat bypass system was purchased and fitted with absolutely no difference being felt whatsoever, apart from a distinct lightening if the wallet.
Anyone have any experience of this problem or any pointers as to what it could be.
Any help gratefully appreciated. To me the car/ truck is just a very slow overgrown Tonka Toy but my mate loves it and is thinking about chopping it in for another one, but I suggested he try to fix the one he has already before watching yet more of his cash go down the plughole of depreciation.
Cheers,
Tony
the Turbos are variable vaned and known to go faulty. this causes the truck to overboost and as a result go into limp mode.
The guy who fixed it for me was a guy called Graham Sanne who used to work for Brookfield hydro motors in Poynton Cheshire. he now has his own garage around the corner and knows what he is doing on L200's, he re-builds them for people.
He cured the problem by plugging the diagnstic computer into the truck and drove it around to immitate real driving situations. you could do a lot worse than trying Graham first. a lot of so called Mitsubishi rallyart specialists pissed me around before graham sorted the problem.
N.
You don't have the contact details for this guy do you?
The latest news is that the truck now won't start in the morning unless it is jump started from another car although both the battery and the Alternator have both been checked out and found to be fine.......
I think it really needs a specialist such as the L200 guru above.
Cheers,
Tony
The latest news is that the truck now won't start in the morning unless it is jump started from another car although both the battery and the Alternator have both been checked out and found to be fine.......
I think it really needs a specialist such as the L200 guru above.
Cheers,
Tony
Have you changed the fuel filter?????
1st rule of diesels, change the filter.
Is there a vacuum pipe that goes to the turbo wastegate?
The default for the waste gate is open and the Vacuum closes it when required.
If the pipe gets kinked/detatched you get no turbo and you drive it harder to compenstae, hence the poor economy.
If you have access to a diagnostic tester look at the Fuel rail pressure actual and target pressure and the boost pressure actual and target.
HTH
1st rule of diesels, change the filter.
Is there a vacuum pipe that goes to the turbo wastegate?
The default for the waste gate is open and the Vacuum closes it when required.
If the pipe gets kinked/detatched you get no turbo and you drive it harder to compenstae, hence the poor economy.
If you have access to a diagnostic tester look at the Fuel rail pressure actual and target pressure and the boost pressure actual and target.
HTH
Tony427 said:
You don't have the contact details for this guy do you?
The latest news is that the truck now won't start in the morning unless it is jump started from another car although both the battery and the Alternator have both been checked out and found to be fine.......
I think it really needs a specialist such as the L200 guru above.
Cheers,
Tony
is it an Import??The latest news is that the truck now won't start in the morning unless it is jump started from another car although both the battery and the Alternator have both been checked out and found to be fine.......
I think it really needs a specialist such as the L200 guru above.
Cheers,
Tony
Also sounds like it could be lack of cold start device which is prooblematic on some import cars?
N.
Hi guys,
No its not an import its an original UK vehicle. I did a bit of digging on the LS200 Forum last week and the vacuum pipe kinked/ blocked option came up strongly as carbon builds up and blocks the myriad of pipes going to sensors etc.
Unfortunately all the vacuum pipes were clear and with no fault codes being logged its a real mystery why the truck performs so badly.
I would think it is the turbo system myself.To give you some idea of the lack of performance, for business I sometimes drive a moderately laden 1.9 DTI Renault Traffic with 163,000 on the clock. This old nail leaves the unladen L200 standing.
Cheers,
Tony
No its not an import its an original UK vehicle. I did a bit of digging on the LS200 Forum last week and the vacuum pipe kinked/ blocked option came up strongly as carbon builds up and blocks the myriad of pipes going to sensors etc.
Unfortunately all the vacuum pipes were clear and with no fault codes being logged its a real mystery why the truck performs so badly.
I would think it is the turbo system myself.To give you some idea of the lack of performance, for business I sometimes drive a moderately laden 1.9 DTI Renault Traffic with 163,000 on the clock. This old nail leaves the unladen L200 standing.
Cheers,
Tony
Tony
Have you changed the fuel filter?
Also
Does the truck get used off road?
I once came across a 4x4 that would just cut out and then start straignt away.
There was a huge dent in the bottom of the fuel tank that had damaged the fuel pick up pipe.
IMHO you need to me able to have real-time data reading on fuel pressure and boost pressure.
Have you changed the fuel filter?
Also
Does the truck get used off road?
I once came across a 4x4 that would just cut out and then start straignt away.
There was a huge dent in the bottom of the fuel tank that had damaged the fuel pick up pipe.
IMHO you need to me able to have real-time data reading on fuel pressure and boost pressure.
odyssey2200 said:
Tony
Have you changed the fuel filter?
Also
Does the truck get used off road?
I once came across a 4x4 that would just cut out and then start straignt away.
There was a huge dent in the bottom of the fuel tank that had damaged the fuel pick up pipe.
IMHO you need to me able to have real-time data reading on fuel pressure and boost pressure.
Yes fuel filter has been changed and the truck is regularly serviced at a main dealer strictly to the service interval. Have you changed the fuel filter?
Also
Does the truck get used off road?
I once came across a 4x4 that would just cut out and then start straignt away.
There was a huge dent in the bottom of the fuel tank that had damaged the fuel pick up pipe.
IMHO you need to me able to have real-time data reading on fuel pressure and boost pressure.
Its never been off road, doesn't have a tow bar, has led a relatively pampered life ( had just over 70k warranted on the clock) and yet is a pig to drive and getting worse.
Its always been painfully slow but my mate just thought thats how L200's drove, he only started complaining when it started going into limp mode and completely losing all its somewhat limited power.
The non-starting issue in the morning is the latest problem that is taking the biscuit........
Cheers,
Tony
Tony427 said:
odyssey2200 said:
Tony
Have you changed the fuel filter?
Also
Does the truck get used off road?
I once came across a 4x4 that would just cut out and then start straignt away.
There was a huge dent in the bottom of the fuel tank that had damaged the fuel pick up pipe.
IMHO you need to me able to have real-time data reading on fuel pressure and boost pressure.
Yes fuel filter has been changed and the truck is regularly serviced at a main dealer strictly to the service interval. Have you changed the fuel filter?
Also
Does the truck get used off road?
I once came across a 4x4 that would just cut out and then start straignt away.
There was a huge dent in the bottom of the fuel tank that had damaged the fuel pick up pipe.
IMHO you need to me able to have real-time data reading on fuel pressure and boost pressure.
Its never been off road, doesn't have a tow bar, has led a relatively pampered life ( had just over 70k warranted on the clock) and yet is a pig to drive and getting worse.
Its always been painfully slow but my mate just thought thats how L200's drove, he only started complaining when it started going into limp mode and completely losing all its somewhat limited power.
The non-starting issue in the morning is the latest problem that is taking the biscuit........
Cheers,
Tony
Carbon would build up around the plug and cause it to overheat.
the MIL light would come on and the management would shut down that plug.
However the management system would continue to check the system and once that plug had returned to within tollerance it would start working again, until the heat effected its resistance and it went out of tollerance again.
I can't recall it ever effecting performance though but Mitsi management might well react differently.
My guess would still be fuel related.
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