test ur engine?

[_turtle_]

Hey guys,

Just wondering if someone could try the following:

Start up your car

Pop the bonnet and take off the oil cap

Does your car then start to stutter and the revs go up and down like its going to stall? If someone could try this out and let me know that would be great because my car does that, and apparently it means that the engine has low compression. Dunno if thats true? I did try it on the other car and it was fine, didn't stutter at all.

Thanks

[blind_elk]

By removing the oil filler, you are opening up an enormous air leak into the inlet side of the turbo (follow the hose off the passenger-side rocker cover). This air is "un-metered", so the ECU starts getting confused and tries to compensate.

Had a case years ago with a Falcon that refused to idle properly - tried new ECU, tried everything. Had it to the dealers numerous times, could not work it out. Then, the APPRENTICE(!) commented the oil filler was on crooked - put it on properly, never had a problem after.

[V-Spec]

my rb30e doesnt do it, eventually white smoke will come out of it but i havnt tested it to that extent

[_turtle_]

Interesting, anyone else tried this out? So i guess the guy was full of crap and just trying to chop my price down further. Well, I hope this is the case.

Cheers