Using different ECUs...

[elwesso]

I might be able to pick up a spare ECU... however, my car is a CAL/TCS, and this is a FED, NO TCS (I think)..

What would I encounter running the latter ECU on my car?

[Q45Viper]

I had a big discussion with Dennis a few months back about this, you might do a search, but I can tell you he said that you MUST match the car to the ECU in terms of federal vs. Cal and traction vs. non traction. So I think you miss on both counts. If you call JWT with the number they can tell you for sure. Tell them you are shopping for an extra ECU so you wn't have the core issue or downtime and gety the correct number for your car and you can shop salvage at will. Or Dennis can give you the numbers too.

[Q451990]

The federal vs. California isn't an issue on the 90 at least. TCS vs. non TCS is a different story.

Heath

[HeavyDuty]

You can, however use a Fed/TCS ecu on a FED/non-tcs car *if* you're having it reprogrammed.

Mine is non TCS, the ECU I picked up to send to JWT was a TCS, but they removed that function when reprogramming.

Dunno about non Cali ECU's in a Cali car. If I were you , Wes, I'd make the Cali ECU an offshore fishing reef.