audible pop then throttle stuck open
Thread Starter
Instructor
Joined: May 2008
Posts: 204
Likes: 4
From: Branchburg NJ
audible pop then throttle stuck open
Took the car for a spin today got on the throttle a little in second and heard what could have been a backfire then my throttle seems to be stuck mostly open. When in neutral it will rev instantly to 4-5k up and down, if I put light pressure on the throttle it will stall.
If I floor it it will rev to the limiter.
The car ended up on the flatbed to a local shop to inspect the TB. Computer shows no codes. Motor sounds ok, no bad mechanical sounds other than reving high for no reason.
What could it be? Is it possible to have backfired through the tb because of the meth kit?
Car is a forged 346, blower cam, headers, exhaust, ecs sc600 blower kit with meth.
If I floor it it will rev to the limiter.
The car ended up on the flatbed to a local shop to inspect the TB. Computer shows no codes. Motor sounds ok, no bad mechanical sounds other than reving high for no reason.
What could it be? Is it possible to have backfired through the tb because of the meth kit?
Car is a forged 346, blower cam, headers, exhaust, ecs sc600 blower kit with meth.
Tech Contributor
Joined: Jan 2007
Posts: 19,472
Likes: 1,171
From: Dyer, IN
Took the car for a spin today got on the throttle a little in second and heard what could have been a backfire then my throttle seems to be stuck mostly open. When in neutral it will rev instantly to 4-5k up and down, if I put light pressure on the throttle it will stall.
If I floor it it will rev to the limiter.
The car ended up on the flatbed to a local shop to inspect the TB. Computer shows no codes. Motor sounds ok, no bad mechanical sounds other than reving high for no reason.
What could it be? Is it possible to have backfired through the tb because of the meth kit?
Car is a forged 346, blower cam, headers, exhaust, ecs sc600 blower kit with meth.
If I floor it it will rev to the limiter.
The car ended up on the flatbed to a local shop to inspect the TB. Computer shows no codes. Motor sounds ok, no bad mechanical sounds other than reving high for no reason.
What could it be? Is it possible to have backfired through the tb because of the meth kit?
Car is a forged 346, blower cam, headers, exhaust, ecs sc600 blower kit with meth.
http://www.c5forum.com/ayc/dtcdic.php
Thread Starter
Instructor
Joined: May 2008
Posts: 204
Likes: 4
From: Branchburg NJ
Yes, checked for codes. Nothing showed up until I pulled the sensors off the tb, THEN it reported p1120 p1220 p1221 p1516 and reduced engine power. Once I plugged the sensors back in and cleared the codes it still did the same thing but no codes.
