84 chevy 5.3 swap issues
84 chevy 5.3 swap issues we put a 5.3 out of a 03 suburban in my buddies 84 chevy before we pulled it out of the rolled suburban it would run and idle but would not rev (its fly by wire) installed it in the 84 and its doing the same thing. so far we have replaced the pedal assembly the throttle body and the tach module...please someone help us get this truck going thanks
On The Tree
Joined: Feb 2009
Posts: 130
Likes: 0
From: san antonio tx
if you replace the pedal ,and tach module,, have you check the wire harness,, maybe a wire got damage?
on my swap the same thing happen but it was because I had everything hooked up and I hook the pedal last and it wouldnt work, I tried and tried things with no luck,, then I unhook the battery and hooked it back and it work just fine,, I guess if you connect the tach module and pedal after the pcm , the pcm wont read it until it gets reset.. just my experience .. good luck
on my swap the same thing happen but it was because I had everything hooked up and I hook the pedal last and it wouldnt work, I tried and tried things with no luck,, then I unhook the battery and hooked it back and it work just fine,, I guess if you connect the tach module and pedal after the pcm , the pcm wont read it until it gets reset.. just my experience .. good luck
pull on the wires that go to the throttle body connector about 6 inches away from the connector, i see this very often, the wires will be broke inside the insulation and it will ohm ok but when you pull on it, it will come apart.
edit: if that doesnt work build a harness from the throttle body directly to the tac module, have had to do that a couple times too due to a previous retard playing with butt connectors.
edit: if that doesnt work build a harness from the throttle body directly to the tac module, have had to do that a couple times too due to a previous retard playing with butt connectors.
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Verdad Gallardo On The Tree
Joined: Feb 2009
Posts: 130
Likes: 0
From: san antonio tx
That means the tac module works. So the problem is the pedal or pedals harness. Make sure pedal is connected. Discconect the battery for a few min. The re connect battery and try it. Good luck
Try lt1swap.com. There's no power between the pedal and the TAC, just communication wiring. Here's a link http://www.lt1swap.com/dbw_2.gif
