Ecotec Build

2003 Olds Alero engine. (Same as Sunfire, Cavalier Grand Am I assume) 2.2 ltr L61 with a Sunfire 5 spd trans. ECM Grafted in behind the console to the Fiero wiring. Not sure but ICM must be from the same car.

 

 

Ok, well here's a wiring diagram:



Did you have the starter out?  Might have whacked the crank position sensor.  If you have a scope, you could back probe at the ECM, and see what the signal from the CPS is.

Check for power and ground at A & E on the ICM.  Make sure the block is still well grounded (maybe a strap got removed during the last fix?).

That's a start anyhow - LMK what you find.
(where are you anyhow? I have a handheld scope meter)

Yes, much valuable info gained in the phone conversation.
Will start with the basics like grounding the car properly to rule that out as the obvious problem.
Fingers crossed.

I did all the recommended fixes as per the Doctors preliminary orders and the car is still a no fire. Spins the engine much faster than before but still a no start with ether.
 Good constant Power to the ICM but I am thinking there is no spark reaching the plugs and possibly no injector pulse.
Will replace the Crank sensor as it is cheap and can rule it out.

Good news, I pulled the connector/wires off the CKP and removed the black tape covering the splice. One of the wires had come off inside. Resoldered it and the car now fires. It runs for a couple seconds then it dies. on the right track..............

Medic wrote: It runs for a couple seconds then it dies.

Check that passkey bypass module.

That sounds like the security system kicking in.

 

You know, I've read about all sorts of trouble people have had with trying to retrofit stock ECM's to their new car bodies.

If I ever go beyond a 3.4L and need to change out the stock ECM I'm going to take a good long look at MegaSquirt.  Seems to me that you would have the most flexability.

Sounds like you're getting close anyway.

The Dawg

It's Alive!

The BCM must have reset itself.

I had it for a burn down the road today.

Yes and it helps if the cks is hooked up.

Probably not, it needs a provincial inspection so everything will have to be working to pass.
 The car is real low and the front wheels rub.
 The speedo,tach,oil pressure,temp (and of course the e-brake) do not work.

The shifter now works properly and the clutch problem is solved.

I will need to find a good guy to do the inspection.