Hey
So, here is my problem:
My car starts jerking during driving at constant speeds and dies after letting gas pedal go for atleast 10 seconds (taking off ramps). It's fine when I come to the stop signs and red lights, doesn't die then. No CEL.
It's a 2005 WRX with 85K miles on it, stock with HKS bov and bellmouth pipe and stage 1 tune
My guess is fuel filter (since it's original), some ppl say Idle Speed Motor , don't know.
WHat do you guys think? Anyone had the same problem? THANKS

 

Probably your BOV!


Does it make any strange sounds during normal driving? When it dies, do you hear anything weird (other than the car dying)?

 

No weird sounds, it's not a BOV, i put about 30,000 miles with it and my car ran like a champ. Thanks for an advice bro

 

Classic BOV type of issue, or possible a vacuum leak.

You can always take off the BOV and see if it helps. Also checkl for looks clamps, tears in vacuum lines, etc. Any CELs?

 

just an fyi brooooo, if your map is not custom tuned for your BOV it will cause issues.

And just because you don't sell a CEL on your dash doesn't mean there isn't diagnostic codes showing up. Get an OBD-2 scanner or go to your local dealership and ask for a free diagnostic for issues.

Also, while it may sound odd, check your oil. if you're running low this could happen.

What kind of "stage 1" map do you have? Cobb? Open Source? EcuTek?

 

changed oil last friday, have OBD-2 scanner, no codes.
My guess is fuel filter

 

well you think fuel filter you said that twice


what happens when you get on it?

 

I'd say pull that bov off. Could be a coil issue.

If your so stuck on the fuel filter just change it.

 

Maf?

 

fuel filter would probably mean starvation.

Check this page for a list of the possible fuel related CEL codes:

http://www.clubwrx.net/forums/mainte...s-wrx-sti.html

change the fuel filter, reset your ECU and see if the problem "goes away".

 

Thanks for an advice

 

Switched MAF with my friend, no change

 

Tomorrow gonna replace fuel filter (located in fuel tank in 2005 models). I'm guessing this is it cuz problem occurs during long decelerations.
Anyways, thank you guys for all the advices

 

How about dirty injectors if not the filter?

 

I got to ask...what is the point of a BOV? Other than to attract attention.