Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
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Service/Check Engine light comes on after wide open throttle
Hi,
I have a 91 camaro with a 305 tbi..I just recently rebuilt my engine and got all the bugs out of it....Only problem i have now is the Check/Service Engine light comes on after i give it wide open throttle.When im cruising,it doesnt come up or show up on the dash until i mash on the gas....Once its on,the car doesnt drive or sound any different just gets annoying seeing the light on.If i restart the car,it doesnt show back up....Can someone help me out?My car running too rich causing it to show up?O2 sensor?All and any info is greatly appreciated
__________________ Jon S
91 Camaro aka The Black Pearl aka Purple Poision
Engine Mods:edelbrock intake and timing chain-hypertech chip-flowmaster exhaust-open element air filter
APPEARANCE:5% Tint all around,18" IROC rims-255/40/18 Pirelli Scorpion tires-2 1/4 Cowl Scoop-Black Pearl Paint job
SUSPENSION:Eibach Sportlines,UMI Performance adj. panhard,LCA and LCARB..Custom STB
AUDIO:I have some thumps =)
Look under the dash by your right knee and you will see a 12 pin connector there. It might have a cover over it saying diagnostics. With the key in the "OFF" position, take a paper clip and jumper the top two pins on the right hand side (pins "A" & "B"). Turn the key to the "ON" position but don't start the engine. The service engine soon light will come on for a second and then start to flash the codes. It will flash once, pause and then flash twice more for code 12. It will do this three times and then start to flash any other codes it has stored in the computer. It will flash each one three times as it goes through them. After the last trouble code has flashed, it will repeat the cycle again. Code 12 is a normal code, also if the fans come on this is also normal. After you have gotten all the codes, turn the key to "OFF" and remove the paper clip.
