Why wont it idle?

col · Wannabe Joined: 15 Apr 2009 Posts: 8

After such a long time i have managed to get the engine in and most thing sorted but the engine does not seem to want to idle. It seems very happy at high revs but after turning it on it will only idle for a few seconds and then cuts out.

Any ideas any one??

hansend23 · Posted: Fri Jul 17, 2009 7:01 pm Post subject:

no air leaks after the maf?
hmm,iac valve?
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just do it!

MostlyMonki · Posted: Fri Jul 17, 2009 9:08 pm Post subject:

yeah maf would be my first guess. how about a bit more info on engine type etc? ej20? turbo? it'd help...
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'72 Ratty Bug - Subaru EJ20 Turbo motor.

col · Wannabe Joined: 15 Apr 2009 Posts: 8

sorry its a 2l from a 1997 legacy non turbo. I'll check the maf and make sure there are no leaks. hope that sorts it out

MostlyMonki · Posted: Sat Jul 18, 2009 12:06 pm Post subject:

got a check engine light rigged up? if so it'll throw a code for the maf if theres a leak problem.
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'72 Ratty Bug - Subaru EJ20 Turbo motor.

col · Wannabe Joined: 15 Apr 2009 Posts: 8

hi, thanks for the tips - i checked everything was done up tight and there must've been an air leak somewhere as now it seems to be running much better. still some tweaking to do to get it just right. i'll check the fault light next.
Fingers crossed for an MOT soon on it

MostlyMonki · Posted: Sun Jul 19, 2009 9:59 pm Post subject:

if you had an airleak it will throw a maf code - so dont replace the maf right away, just reset the ecu then check for codes after another test-run.
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'72 Ratty Bug - Subaru EJ20 Turbo motor.