It's a riddle

[Hybrid]

What should I do to fix this thing, now that I know it is a 350 I am completely out of ideas.

[Mike F]

You still need to tell me what the throttle body you have came off of and what the colors are on the tops of the injectors or what the part number is stamped on top of each injector if the paint marks are gone.

The IAC will retract when you turn off the ignition and should move to close off the port hole when the motor is started, if it does not the IAC could be bad. It will also move when you open up the throttle quickly. You can see it through the the hole on the top left rear corner of the trottle body.

I do not have a lot of extra time right now to mess with it, I have my jeep and others to get ready to wheel. (It was to cold to mess with this last winter.) I would end up rewiring if needed if the harness is compatible to install the 7747 ecm (the ecm used to cost $25.00 local) so I can get in it and get rid of the things you do not need. Maybe in a couple of weeks.

[Hybrid]

Thanks so much for your help so far! I will get those numbers (or colors) of the injectors and let you know. I don't know what the throttle body came off of, but sarge should know since he gave it to me.

[94Dodge Truggy]

Thanks so much for your help so far! I will get those numbers (or colors) of the injectors and let you know. I don't know what the throttle body came off of, but sarge should know since he gave it to me.

In an earlier post Sarge stated what the throttle body was from. Hopefully you will be able to get that beast out on the trail soon!

[sarge]

The second TBI I got was off of a full size Chevy panel Van it was a 350 but I do not know what year it was . the van was crushed . they took the motor out to sell and I snagged the TBI off it .

[blazerbrad]

It may already be a moot point, but whether or not the TBI unit came off of a 305 or 350 it should not cause the issues you are having.

[Mike F]

It may already be a moot point, but whether or not the TBI unit came off of a 305 or 350 it should not cause the issues you are having.

Maybe, maybe not, we now know it came off a 350 and that was not posted before. The system sarge said he had pulled had a holley throttle body on it and that it was supposidly bad. Now I would still like to know I am dealing with a 350 TBI and not a 4.3 TBI or even one for a 454 that is wired different from the others but plugs in the same!

If it is a 454 I will take it in trade to get it running! (I will help you out anyways.)

The IAC may be bad and I posted how it should act and that also needs to be checked.

[sarge]

Mike ,

I can 100% say that the TBI was not from a big block or a 4.3 L . As far as it being a 350 or a 305 ..... I can not see them pulling a 305 , they are not worth anything . I knew the previous owner of the van and set the deal up for the van to be hauled in and the previous owner even said it was a 5.7 , but with that being said ..... I have run into alot of people who think GM put 350's in every V8 camaro made

[Mike F]

The 4.3, 5.0, and 5.7 throttle bodies look identical and are mostly except for the injectors and some yards do not know the injectors are different hence you could get the wrong one. It is probably a 5.7 one, but it is easy enough to make sure by looking at both the injectors. It should only take a couple of min to check them.