Ok I wanted to check my computer codes and i put a paper clip in pins a&b turned the key and my check engine light flashes one time and that's it. My book says it should give me a code 12 no mater what. What does this mean

 

What year is your car ? Does it have a carb ? Is it factory stock ??

 

ok sorry. it is a 86 firebird that had a 2.3l v6. i swapped a 92 5.0 TBI in to it. and i cant get the injectors to fire. i have the vats box from the 92 and have wired it in i also made a vats bypass module just in case mine was bad neither make the injectors fire. i manually tested the injectors and they work. i was checking the code to see if it has a vats code. oh and yes i do have the ecm from the 92

 

Check connector C207.

You will need to know where the "check engine" Lamp wire/pin is located @ C207 for both the 1986 and the 1992. There's a good chance that this wire is in different locations on either side of that plug.

 

P.S. C207 is the ECM harness connector that plugs into the Dash Wiring harness. It's located on the passenger side, under the dash, near the heater core box.

 

ok i will check it again just to be sure, but i went to austinsthirdgen and printed the wire diagrams for both cars and traced the wires to match at the connector. if it is right could a bad ecm cause this

 

I have an 87 2.8 v6, wich when i try to flash, I hear systems in my engine turn on, the check engine light only flashes once real quick and then nothing. Problem I am having is, Car starts like ****, It will turn over bogging like crazy (rpm,s up and down bounciung back and forth, if I dont give it some gas till this settles it will die on it may die on its own. I did notice the lights will dim along with the enginge light flashing on and off. Randomly while driving the car will shut off.

 

I never figured out why my check engine light wont show codes. i tried replacing it but it didn't help. I ordered a eprom programer to reprogram the eprom, and discovered someone had put a hypertech eprom in it. So i'm going to try reprograming it

 

I accidently got mine to show the codes. I had it my automatic out of park and tryd to start and then handshake and codes came, code 34 for me.