I have been having trouble with my car when i lift off the gas. The RPMs fall down to 400 and the oil light blinks on then they climb up again. I can't figure out what is causing this and it gets really annoying especially with the ac on because it happens more frequently. The car however has not stalled from this. I'm thinking about going to the dealership and just let them figure it out. Please chime in guys.

Thanks

when you lift off the gas is the car still in gear or are you in nuetral??

It is actually when I let off and depress the clutch to get the car out of gear when im coming to a stop. I do a lot of rev matching when I come to a stop so I don't see it happening much but I get lazy rev matching 60-100 miles a day locally.

I was reading one thread about somebody having issues with a big turbo and someone else posted that they were having the same issue and what they did was clean the MAF sensor and it went away.

Stock BOV?

I was thinking about the bov too. I know mine did it when one of my intercooler pipes was loose. Did a boost leak test on it and fix the problem

Im just going to throw this out there, could be it, or might not be lol


Cam angle sensor
Cylinder misfires
Bad plugs
boost leaks

I would think vacuum leak or crappy bov.

how do I do a vaccum leak test? Can anyone else add to this discussion

i have the same problem when stock turbo, my RPM's will drop enough just to stall out when coming to a stop, its not the tune/bov, ive tried both and 2 differnt tuners

i was 350whp stock turbo cammed.
now im GT35R and it still does it but doesnt do it often like my old setup, i cant seem to find out what it is, i would like pro's to chim in on this

if you are running an atmospheric bov this could be your problem , the maf counts are getting thrown off.

Mine used to do the same bone stock when i had the A/C on..
After i did a few mods (new plugs, filter, TBE) and a tune.. i haven't had the problem..

Did you check what I suggested? also Search for the vac test...also I agree if you have a VTA it is going to do this......

It's your intake...
My car used to do the same thing, I put my airbox back on and now it's fine. It also got rid of 99% of my comp surging as well.

No it didn't. You just can't hear it now.