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ECM compatibility

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Old 06-29-2012, 07:28 PM
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Car: 1991 Z28 58,000 miles
Engine: 350 tpi
Transmission: 700r4
ECM compatibility

Will a 1987 trans am l-98 wiring harness and ECM work in my 1991 Z28 l-98?
Old 06-29-2012, 08:13 PM
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Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: ECM compatibility

Originally Posted by drewt1047
Will a 1987 trans am l-98 wiring harness and ECM work in my 1991 Z28 l-98?
If you install a MAF sensor and convert your '91 from SD to MAF
Old 06-30-2012, 07:32 AM
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Re: ECM compatibility

Yup, a pretty invasive swap... belongs in the class of "if you have to ask, it's not for you" type of things.

If you REALLY need a different harness (can't imagine why, but w/e) keep looking for the right one.
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