lamogo33
OBS Enthusiast
I repinned the ECM connectors from my 1990 ECM (1228747) for a 1994 ECM (16197427). With the right diagram and the new connectors, it was a piece of cake. Here is where I got the info for mine - http://www.gearhead-efi.com/Fuel-In...ersion-PCM-Swap-with-Wiring-Pinout-Directions!
There are some small harness adapters out there for the IAC and TPS to make the 350 TBI wiring plug-and-play with a 454 TB.
Thanks! I came across that thread yesterday and have printed it out and have studied it. This morning I purchased new red/blue connectors and the adapter for the IAC. As soon as the arrive I'll dig into it.
BTW is your truck a 700R4 truck? If so did you get the TCC lockup to work with the computer? Seems there is conflicting information about it working with the 427 ECM.