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Ramjet harness


1/2 ton status
Premium Member
Jan 21, 2003
Reaction score
Binghamton NY
Anybody have experience with one? I have one that is the MEFI 3 version, and guess it leaves a lot on the table. I have the ECM, wiring, believe most of the sensors, but having a hell of a time finding the wiring diagram for it. All the ones I'm finding are for the 4, and is different cause 4 has an O2 sensor. My goal is to use the 0411 ECM from a van, that way I have the Vortec, Ramjet, 4L80 and the wiring. Local place can tune it no problem.
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