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ECU Questions --- I'm so confused. 200

posted by  boxvolvo on  Wed Dec 29 10:14 CST 2004
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last visit: Fri Oct 24 04:28 CST 2014
[RELATED]

Last things first. On the 89 California car, the EGR is mounted near the driver side strut tower. If it has an EGR, it's a California car.

The proper ECU for the 89 California car is the "556" I know the 561/951 ECU will start the car - I don't know about the long term effects of using it.

The 556 ECU also has an upgrade - the "933" the 556 is supposed to have the same problems as the 561, but I've got an original in my California/EGR 89 244, 190K, and no problems - yet.

The retail on new and rebuilts of any of these is outrageous, $750. Used ones pop up on ebay from time to time, go for $100-$150.





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