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Engine RPM Sticking proplem
Posted: Sat Dec 18, 2004 3:23 pm
by turbolegacy1991
I have a 1991 legacy turbo it was originally converted from and auto to a standard tranny. everything was changed including wiring harness.. i have a problem when i am driving and i rev up to 4000 rpms and go to shift the rmps will stay there and i usually have to hit the gas a few times for them to drop so i can let the clutch out.. does anyone have an ideas where to start
Posted: Sat Dec 18, 2004 3:31 pm
by vrg3
First question: Did you cut the wire going to the "Transmission ID" pin of the ECU?
Posted: Sat Dec 18, 2004 6:00 pm
by Legacy777
You may want to check out my write-up on my swap.
www.surrealmirage.com/subaru/swap
Posted: Sun Dec 19, 2004 11:29 pm
by turbolegacy1991
No i have not cut any wires going to the transmission ID Pin of the ECU where is this wire located???
Posted: Mon Dec 20, 2004 12:07 am
by vrg3
http://www.graphics.cornell.edu/~v/ecupins/
Locate the wire going to the "Transmission ID" pin and cut it. That will tell the ECU that it's running a manual transmission car. Dave had idling problems with his swap until he cut the wire.
Posted: Mon Dec 20, 2004 4:56 am
by BAC5.2
My RPM's used to hang (and my car was and has been a manual).
Turned out to be IAC related.
Posted: Mon Dec 20, 2004 9:12 pm
by tris91ricer
Check your throttle cable while you're at it. Sometimes it just needs grease and/or adjusting.