Marcus18 Posted August 8, 2003 Report Posted August 8, 2003 I have a series 1 3800 s/c engine with no harness or computer. what should I do? is there a aftermarket ecu that can control the transmission? it's a 4t60e. marcus Quote
92turboLE Posted August 8, 2003 Report Posted August 8, 2003 Haltech has a computer that is direct swap that plugs into the GM engine wiring harness. its like 1200 bux though, but it is fully programable via laptop on the fly... - Justin Quote
Robby1870 Posted August 9, 2003 Report Posted August 9, 2003 Your best, safest and cheapest bet is to get a stock ECM and harness from a Series I 3800. Robby Quote
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