no spark from coil ?
Discussion
Ok i recently had issues with my car went to take it out one day and within driving 50 yards had smoke coming out of the exhaust.Got it recovered to a local garage who could not find the fault so next had it recovered to a main dealer garage for them to check it over.The car was running before it got to them but they said it would not start.Anyway there guy had a look around but could not find the non start issue I told him I had an issue with a fuse on a row of them in the engine bay(bad connection).cut a long story short its the fuse that powers the ecu so once he had a fiddle car started.
Hooked up to diagnostic fault with smoke was one bank running extra rich and other running extra lean so simple ecu reset to cure problem.Garage also replaced my fuse holder and connectors from wires that go onto the fuse holder.Now car would not start they said there was no power going to the coil car would turn over but not fire up they recon the ecu was working still as they had a reading out of it.they tried to find the reason the car would not start(replaced coil pack to no avail) and after 3 weeks of having my car and it being worse than when it got to them they have washed there hands of it. So car has been recovered to another speacialist garage to hopefully find the problem.Seems odd car was running before they fitted this fuse holder then it would not start.I told them to check the connectors that go onto the spades of the fuse holder and other obvious things that they say they have.As you can understand im a bit disheartened by it all I know it will be something simple and I cant help but think its something the other garage have done any ideas what you guys think it could be ?
Chris
Hooked up to diagnostic fault with smoke was one bank running extra rich and other running extra lean so simple ecu reset to cure problem.Garage also replaced my fuse holder and connectors from wires that go onto the fuse holder.Now car would not start they said there was no power going to the coil car would turn over but not fire up they recon the ecu was working still as they had a reading out of it.they tried to find the reason the car would not start(replaced coil pack to no avail) and after 3 weeks of having my car and it being worse than when it got to them they have washed there hands of it. So car has been recovered to another speacialist garage to hopefully find the problem.Seems odd car was running before they fitted this fuse holder then it would not start.I told them to check the connectors that go onto the spades of the fuse holder and other obvious things that they say they have.As you can understand im a bit disheartened by it all I know it will be something simple and I cant help but think its something the other garage have done any ideas what you guys think it could be ?
Chris
Well, there is basically only about 3 ways a coil can not work
1) it isn't getting any power (no 12v feed to coil)
2) it isn't getting triggered by the ecu (no "low" pulse from ecu / coil driver)
3) it's buggered.
About 2mins with a multimeter should tell you which one of those is happening!
1) it isn't getting any power (no 12v feed to coil)
2) it isn't getting triggered by the ecu (no "low" pulse from ecu / coil driver)
3) it's buggered.
About 2mins with a multimeter should tell you which one of those is happening!
the garage that did the work on the car are a main dealer in the south with a supposedly good reputation not in my eyes now after this hassle.Car has gone to a place I have been before at Bruntingthorpe very well respected place do top work and work on nobles all the time only shame was it cost me over 3oo notes to get it recovered to them Im sure they will find the problem not sure how I will stand if its something the other garage have done to car thats causing the problem as I still had to pay them some money for labour spent on car even though its come out as a non runner but was running when it went into them.
coolchris said:
the garage that did the work on the car are a main dealer in the south with a supposedly good reputation not in my eyes now after this hassle.Car has gone to a place I have been before at Bruntingthorpe very well respected place do top work and work on nobles all the time only shame was it cost me over 3oo notes to get it recovered to them Im sure they will find the problem not sure how I will stand if its something the other garage have done to car thats causing the problem as I still had to pay them some money for labour spent on car even though its come out as a non runner but was running when it went into them.
I guess it is possible the problem isnt their fault, and it is coincidence. It can happen. But it is a pretty crappy situation.I'm just baffled ( although TBH not overly surprised ) that 2 garages so far and they cant even diagnose a non starting petrol car, which has to be one of the easiest faults possible.
the first garage did not have the right diagnostics for the car and the car was running it was the smoke issue it went in for.The other garage said car would not start but after telling them about my faulty fuse connectors they had a fiddle with the fuse/connectors and it started.Smoke issue was solved with an ecu reset they fitted a new fuse holder(holds 4 fuses 1 for ecu 1 for fuel pump not sure about the other 2 since then cars not started ?
coolchris said:
the first garage did not have the right diagnostics for the car and the car was running it was the smoke issue it went in for.The other garage said car would not start but after telling them about my faulty fuse connectors they had a fiddle with the fuse/connectors and it started.Smoke issue was solved with an ecu reset they fitted a new fuse holder(holds 4 fuses 1 for ecu 1 for fuel pump not sure about the other 2 since then cars not started ?
Problem with too many garages. If they cant plug in a computer that will tell them things, they're stumped.Garages like that shouldnt be allowed near cars.
But it would seem from the posts that this fault has been caused in one way or another and is very likely related to this wiring work.
Hi,
Yes it was crank position sensor (god knows how the other MAIN DEALER)never found the problem this garage found the problem pretty much straight away.Hours labour plus part well chuffed pick car up on friday just in time for the decent weather.Thanks for everyones help on here
.
Chris
Yes it was crank position sensor (god knows how the other MAIN DEALER)never found the problem this garage found the problem pretty much straight away.Hours labour plus part well chuffed pick car up on friday just in time for the decent weather.Thanks for everyones help on here
.Chris
At least you now have somewhere with a brain to take the car to ! That's also a result.
It really does beggar belief how some garages stay in business knowing how incompetent they are.
The sad reality is it's because they rob people blind on a daily basis, yet customers are often naive to it !
It really does beggar belief how some garages stay in business knowing how incompetent they are.
The sad reality is it's because they rob people blind on a daily basis, yet customers are often naive to it !
stevieturbo said:
At least you now have somewhere with a brain to take the car to ! That's also a result.
It really does beggar belief how some garages stay in business knowing how incompetent they are.
The sad reality is it's because they rob people blind on a daily basis, yet customers are often naive to it !
It really does beggar belief how some garages stay in business knowing how incompetent they are.
The sad reality is it's because they rob people blind on a daily basis, yet customers are often naive to it !
Checking for an RPM signal during cranking is real basic stuff that's without getting involved in even scoping the sensor in question 
it was a non-starter after all 
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