When I jumper the pins to put it into diagnostic mode nothing happens.

Anyone have an idea what this could be, is there a fuse that powers it.

BTW the car is a 1992 Camaro RS that I swapped an LB9 into, its speed density TPI

Any help would be appreciated.

Thanks!

 

ECM may be bad, does the SES do the blink at key-on, engine-off?

RBob.

 

Yes the SES light comes on when I first turn the key. Engine is off.

 

Did you move the wire from "E" over to "M" on the ALDL ?

It connects with the tan airbag wire on "M".

 

Dyno don,

I did not move anything on the ALDL. Do you now what color the wires that should be going to the A&B terminal should be?

 

I purchased a new ECM and that did not solve the problem.

I also tested the ALDL connector with a test light and A had power. Is this normal?

 

OK, but does it blink? That is the key.

RBob.

 

Pin A is ground, so if there is power there....

RBob.

 

It does blink actually but it doesnt flash.

 

Blink is good, flashing is bad. The blink means that the ECM is running from the PROM, and not in limp mode.

RBob.