1985 Chevrolet Truck tbi

ICESHIP

MEMBER
1985 CHEVROLET TRUCK
35,000 MILES

Truck didn't have a tbi on it yet just carb.. I have taking a tbi and harness, ecm off my 1993 roadmaster wagon 5.7lit none lt1, to put on my 305 crate motor. What is the least amount if sensor, plug, map, o2, knock.. Better then a carb but not as efficient as its should be but I can live with that..

3 Replies

CARADIODOC

MECHANIC
33,871 POSTS

It's doubtful you'll ever get this to work. I don't understand what you're asking, but you're swapping a few parts of a whole system. What about the electric fuel pump in the tank? What about the Check Engine light on the dash? What about the anti-theft circuit in the steering column that tells the Engine Computer it's okay to let the engine run?

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Wednesday, September 4th, 2013 AT 9:08 PM

ICESHIP

MEMBER
8 POSTS

Ok. I found a harness that has been stripped down.. Was going to use my ecm or of my roadmaster but the ecm has a manifold temp plug.. Will it work without it.. If not ill have to find a diff ecm.

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Thursday, September 5th, 2013 AT 6:26 AM

CARADIODOC

MECHANIC
33,871 POSTS

You're on your own with this one. You're trying to do something no professional would attempt. You might consider looking for an aftermarket kit made for your truck. A friend tried to install one of those on his Suburban a few years ago. It did run the engine but he never did get it to idle at the right speed. He gave up and sold it "as is" a few months later.

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Thursday, September 5th, 2013 AT 12:51 PM