Topic: ECM ECU fitment across GM models

[Steelmesh]

Are our kappa ECUs standard with many the GM car models such as Impala, HHR, Monte Carlo, Cadillac DTS, G6...

I got this from car-part.com, just confirming

[Gentleman Jack]

No.
The BCM and TCM are well represented in the GM family, the ECM not so much.

[Sting Ya]

Are you looking for one ? I picked up a spare when I was doing my turbo install from a guy on Ebay  / spareecm he programs them to your vin and gives you a year guarantee  the only thing you need to do is take it to a dealer and get the crank sensor relearn done about $125.00 .Since then I have purchased a few for other cars from him and am happy to say have not had any problems .One thing you need to know is that the 2006 &2007 models use one type and 2008 and up another so they are not compatible .

[Steelmesh]

No.
The BCM and TCM are well represented in the GM family, the ECM not so much.

Just bought an 06 Solstice (70k miles).  I have what appears to be electrical issues:

DTCs
P0443 Evap Valve Circuit
P0102 MAF circuit low
P0030 O2 Heater Control Bank 1 Sensor 1 (was working find for first 200 miles)
P0036 O2 Heater Control Bank 1 Sensor 2 (replaced 2 days ago)
P0137 O2 Sensor circuit low B1S2

I also lost cruise control.

My arm chair diagnosis is possible ECU or bad ground.  I am trying to prepare to find an ECU if actual diagnosis reveals nothing, I guess I have to get one from Werks programmed with my tune. 

I will replace the Evap Solenoid and MAF to rule component issues out.

[Gentleman Jack]

Check your battery. Replace it if it's not new. Countless folks chase electrical gremlins for weeks only to finally replace the battery. Kappas are very sensitive to weak battery. Even slightly low voltage can cause mass disruption.

While replacing the battery- chase the major ground wires and clean them all.

[Sly Bob]

Agreed, start with the battery. You'll save yourself a lot of grief down the road by changing it.

[Steelmesh]

Goods news, I found some issues that hopefully resolve my problem:

1) MAF wiring spliced it.  I removed the crimps and soldered. http://imgur.com/a/bn8RE

2) O2 Sensor also spliced it; however, the pinout at the aftermarket body side connect was wrong!!! http://imgur.com/a/pTHm3

Son-of-a-biscuit. 

Not to mention =( Saturday I found the 10A emissions fuse blown along with a 30A fuse.

[Rogue]

It is amazing how many backyard (and in some case, professional) mechanics try to splice using butt splices. Even well executed those splices have an incredibly high failure rate. You were correct to solder and shrink wrap.

[Sly Bob]

Holy cow! You have to wonder what the guy that spliced those wires with butt connectors was thinking in the first place, that's just nuts!

Glad you got to the bottom of it.

[Rogue]

Holy cow! You have to wonder what the guy that spliced those wires with butt connectors was thinking in the first place, that's just nuts!

Glad you got to the bottom of it.

That's the problem. He wasn't thinking. I'd use an inline IDC splice before I used a butt splice.

[Steelmesh]

Previous Owner    Us

Put some more miles on it, no more codes related.  I did get a P2101, will clean the TB and see if that was the issue...unless I find the TB harness is hacked.