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-   -   Backfire/ missing idle. PLEASE HELP (https://camaroforums.com/forum/82-92-v8-tech-13/backfire-missing-idle-please-help-80055/)

thejess 05-16-2016 07:37 PM
Backfire/ missing idle. PLEASE HELP
 
I have a 91rs 305 tbi. I've replaced all sensors except map. It was just starting to run better when one day it had a backfire/throttle body spit. It has only gotten worse and also has a strange idle that misses every so often. However it runs much better after being driven for 20+ minutes. I just replaced the ignition coil and it still seems to have this problem. Any ideas?

torque_is_good 05-19-2016 10:47 AM
Originally Posted by thejess (Post 711011)
I have a 91rs 305 tbi. I've replaced all sensors except map. It was just starting to run better when one day it had a backfire/throttle body spit. It has only gotten worse and also has a strange idle that misses every so often. However it runs much better after being driven for 20+ minutes. I just replaced the ignition coil and it still seems to have this problem. Any ideas?
plugs
wires
check timing
check fuel pressure


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