Lt1 ECM swap
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Joined: Nov 2008
Posts: 1,545
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From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Lt1 ECM swap
can a 97 LT1 ecm run a 95 LT1? main reason I ask is because I know the later LT1's had a crank sensor, and the early one's didn't. how is the cran sensor on an LT1 setup? is it reluctor wheel that fits over the end of the crank? or is it something else entirely?
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From: San Antonio
Car: 1981 Camaro; 1986 Z28
Engine: LT1; LT1
Transmission: 6 speed; 6 speed
Axle/Gears: 3.73; 3.42
Re: Lt1 ECM swap
in short, No.
The OBD2 computers used the crank sensor and 2 extra O2 sensors. Not only will the engine not run with the 97 computer, there were different pin-outs for the OBD2 computers. The 97 had a differnt timing cover for the crank sensor to read the reluctor wheel on the crank. You would spend more money trying to get it to work than you would with a 95 ECM
The OBD2 computers used the crank sensor and 2 extra O2 sensors. Not only will the engine not run with the 97 computer, there were different pin-outs for the OBD2 computers. The 97 had a differnt timing cover for the crank sensor to read the reluctor wheel on the crank. You would spend more money trying to get it to work than you would with a 95 ECM
Thread Starter
Supreme Member
Joined: Nov 2008
Posts: 1,545
Likes: 10
From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Re: Lt1 ECM swap
in short, No.
The OBD2 computers used the crank sensor and 2 extra O2 sensors. Not only will the engine not run with the 97 computer, there were different pin-outs for the OBD2 computers. The 97 had a differnt timing cover for the crank sensor to read the reluctor wheel on the crank. You would spend more money trying to get it to work than you would with a 95 ECM
The OBD2 computers used the crank sensor and 2 extra O2 sensors. Not only will the engine not run with the 97 computer, there were different pin-outs for the OBD2 computers. The 97 had a differnt timing cover for the crank sensor to read the reluctor wheel on the crank. You would spend more money trying to get it to work than you would with a 95 ECM
Thought it would be something like that, which is fine, I thought I has a late model ECM, but it turns out its an earlier one.
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