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Failed MOT on emissions. Difficult fix
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Whats the compression like on that cylinder compared to the rest ?
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If you have spark + compression the only thing left is fuel. Is the injector injecting fuel.
Which section did it fail emissions ? co2/lambda ? |
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Did you check your coilpacks for cracks? They fail with age.
https://cimg0.ibsrv.net/gimg/www.sco...deb49655ee.jpg That coilpack is under 10 years old. I know how old it is because I replaced all 4, 9 years ago. If your car is on original coilpacks, I'm surprised it still works. Have you got a decat exhaust? |
Swap the injectors over, see if the misfire follows.
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Originally Posted by ScottyPPP
(Post 11725375)
Swap the injectors over, see if the misfire follows.
Originally Posted by demk1
(Post 11724804)
The car ran exactly the same when I disconnected the front right cylinder (3?) coilpack from the power. But when taken out and tested for spark, there is one.
[*]Replaced coil pack on the cylinder. I don't want to put words in anyone's mouth, so I won't say what has already been suggested or tried. I'd like to get opinions, thoughts about how to fix this as i'd really like to be able to drive it for the first time. Any help appreciated The cynic in me thinks that the car is in a garage that doesn't know what they are doing. :wonder: Diagnosing stuff over the internet is damned hard, not knowing what has been already tried makes it even harder. IMO, I think it's got a decat exhauset as that's the most likely reason for the emmisions fail, fit a set of newage coil packs and PFR7B plugs and see if it's still got a misfire. <That is cheaper than fitting a new set of early coilpacks! |
if you have petrol coming out of the exhaust you have a injector stuck open. :thumb:
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