1996 Camaro ls3 swap
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From: atco
1996 Camaro ls3 swap I have a 1996 Camaro z28 I am wanting to ls3 swap using mega squirt ms3. I was wondering how to keep abs, cruise control, a/c, and fans. A/c isn’t huge I can rewire that to have the new ecm control the compressor and fans. I see current performance has a harness for this but don’t know if it is worth it considering I don’t want to keep factory gauges.
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Your abs module uses a cable system to control the TB and I believe ABS is tied into that as well. I don’t think it is necessary for an ECU to tie into that system.
what is important is that your abs system uses mechanical force to operate the throttle body. LS3s are gen 4 and use drive by wire TB. You can get a cable driven TB and make your cruise control work with it.
when you set your CC, all the module does is holds the TB open at whatever % you set it at.. it has nothing to do with the ECU.
You need a ECU that controls the engine. Make sure it allows you to run a cable driven TB with a gen 4 LS engine. I think the Holley Terminator X forces you to run DBW for their Gen 4 stuff, not sure.
the ecu will control the radiator fans as well.
as for AC, you have 3, 2 wire “switches”. One is high pressure, one is low pressure and the other is the clutch switch. You can probably wire those up to avoid needing ECU input. Similar to how a universal AC kit for like a classic car works. Those don’t use a ECU. Just switches and stuff.
what is important is that your abs system uses mechanical force to operate the throttle body. LS3s are gen 4 and use drive by wire TB. You can get a cable driven TB and make your cruise control work with it.
when you set your CC, all the module does is holds the TB open at whatever % you set it at.. it has nothing to do with the ECU.
You need a ECU that controls the engine. Make sure it allows you to run a cable driven TB with a gen 4 LS engine. I think the Holley Terminator X forces you to run DBW for their Gen 4 stuff, not sure.
the ecu will control the radiator fans as well.
as for AC, you have 3, 2 wire “switches”. One is high pressure, one is low pressure and the other is the clutch switch. You can probably wire those up to avoid needing ECU input. Similar to how a universal AC kit for like a classic car works. Those don’t use a ECU. Just switches and stuff.
