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dbw to dbc conversion

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Old 03-23-2010, 08:58 AM   #1
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Default dbw to dbc conversion

anyone know what wires i would need to switch in the ecm to change from drive by wire throttle body to cable. harness is from a 06 chev pickup 2wd with 5.3, going in a 49 panel wagon,(think gravedigger)
or can just use the wires that is already there and de pin ? thanks
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Old 03-23-2010, 10:29 AM   #2
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You need to add the 4 IAC wires and the 3 TPS wires
You can then removed the wiring going to the TAC module and the throttle motor plug
You can repin the wiring going to the throttle motor plug and put the IAC and TPS plugs on them, if you want
If you're changing from a Blue / Green plugged PCM to a Blue / Red plugged one, you also need to change the wiring on the O2 sensor heater grounds

PS, Depending on what you're running for a PCM, you might have issues with the crank and cam sensor signals, since the newer PCM's don't support the IAC and the older ones don't support 58X crank signals
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Old 03-23-2010, 10:29 AM
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