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l21 vs l29 ecm pinout
Hi, I m new to this forum. I bought a l21 vortec 7400 1997 engine from a 1997 motorhome. I have the Gm P serie truck shop manual for that year too, but it only have the L29 wiring diagram. At first I tought that it was the same wiring but it s not 100% accurate. Any help would be appreciated- Simon
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- Forum: 96+ Vortec Performance + Computer Swaps
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