Vr runs fine when its cold but when it gets warm...

[commodoryhory]

Over the past two weeks my V6 vr commodore starts to cough and splutter when I accelerate, but it only seems to be when it is warm. Runs fine when the engines cool. Any Ideas on what it could be? TIA

[bear76]

do a diagnosis sounds like u got crook sensor

[Brett_jjj]

As above,check for any logged error codes.---Checking error codes VR/VS (Revised)---If you go into this link and scroll down near the bottom of the posts,there are some excellent pics as well that show you how to do this test.

[bear76]

if nothin comes up wait till its playin up then test

[commodoryhory]

did the error code and all is fine. took it for a drive to get it warm and retested, error code is still 12. What sensor would it be? Could it be dirty injectors?

[bear76]

just make sure its in neutral and wait a min u should get 3 flashes of 12 then anything thats wrong should come after that do u c anything leakin from them could b that or check u fuel filter

[commodoryhory]

No, nothing leaking from injectors, changed fuel filter but it has made no difference. the diagnosis keeps coming back as ok I have checked it quite a few times. Think I might just take it to the mechanic but if anyone has any other suggestions they would be welcome

[RX25SE]

Ignition leads?

[pillzor]

Over the past two weeks my V6 vr commodore starts to cough and splutter when I accelerate, but it only seems to be when it is warm. Runs fine when the engines cool. Any Ideas on what it could be? TIA

i had a lead touching an extractor which would cause a cylinder not too fire sometimes , it looked fine but when i pulled on it its broke into pieces.... so check the leads, plugs and coils is my guess.