Gearheadmike
OBS Enthusiast
History/info dump. 1988 c3500 350 th400 87k miles. Ex air force base truck. I deleted the air pump and egr. Has short style headers. New aftermarket distributor. New intake gaskets. Tbi gasket. New fuel pump and filter. New air idle control valve. New plugs and wires. It had the hot fuel pump module under glove box but it is unplugged and gone tho pump still runs a few seconds after key is shut off.
Now.. the truck starts and runs good cold but seems when warming up the idle fluctuates up and down it had a code pop up over the winter when i moved it for 02 sensor so i replaced that with a new a/c or delfi one can't remember. It doesn't trip a cel light but i do have a old school scan tool i can plug in and see live data. Just don't know what i'm looking at haha. I just don't want to keep throwing sensors at it and still have issue. About to put carb and hei dist and call it a day with the tbi but do kind of like the injection.
Now.. the truck starts and runs good cold but seems when warming up the idle fluctuates up and down it had a code pop up over the winter when i moved it for 02 sensor so i replaced that with a new a/c or delfi one can't remember. It doesn't trip a cel light but i do have a old school scan tool i can plug in and see live data. Just don't know what i'm looking at haha. I just don't want to keep throwing sensors at it and still have issue. About to put carb and hei dist and call it a day with the tbi but do kind of like the injection.
You must be registered for see images attach