Compatibility

old bird

Registered User
Have a complete 92 SC engine that I want to put into a high mileage -95. Then, I intend to take -95 engine and rebuild it, including serious performance mods, and install it in a -90 35th. I understand that 89 thru 93 cars are eecIV and -94-95's are eecV. What kind of problems as regards harnesses, sensors, etc am I going to have? Any help would be appreciated.

Old Bird
 
If I remember right all SC's use the EEC-IV system. The 94+s have a few diferences in the computer, if you're planning on this, I would use the 94-95 harness sensors, and injectors (computer is setup for 34.5# instead of 30# on the 89-93) if you're going to use the 95 ECU on the 92 engine (which if it's an auto you need the 95 ECU). The only other differences I can think of are the compression ratio and the whole SC/Inlet assembley w3hich may slightly affect the computer. You may need or want an EEC Tuner and file for the older engine, not totally sure on that.
 
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