I have a 95 f-350 that I bought with 2 performance tuners on it. I'm trying to figure out what they are and what they actually do. I can't find any labels or anything on the *****. There are 2 ***** mounted under the steering column one turns smoothly the other has click settings. I believe the click one is a TS 6 position tuner or something similar. Stock, high idle, a little faster, some faster, much faster, makes a bunch of smoke sounds mean but isnt. The other one has a wire that runs up to the icp sensor harness and ties onto one of the wires. I actually unhooked it because it made the motor sound like it was knocking/detonating when turned up all the way. Any ideas?

 

I'd imagine the smooth one is a rheostat that fools the computer into sending more high pressure oil to the injectors similar to a mod in the mod section

 

One will be a chip the other is a fancy 10k mod. Remove the 10k mod. Now on to more important things. If it's smoking in the higher tunes then you most likely got a built set of injectors. Do you have a boost gauge ? If so how much boost does it make ?

 

I do but dont know how well I trust it. I believe the highest ive ever seen it is around 15. It does kinda fall on its face in the high tunes just show no go. I was told I needed some higher output injectors because the stock ones cant atomize the fuel it doesnt get burnt hence the smoke. It made sense to me but Im not exactly sure how it gets atomized so it might be totally wrong. It would make that it isnt getting enough air to burn all the fuel but I would hope it would compensate for it.

 

You need to find out if that is actually putting out 15lbs of boost if it is you have a boost problem putting bigger injectors in will only make the smoke worse

Bigger injectors dump more fuel and depending on the nozzles it will dump it faster all that black smoke is unburned fuel either because of inadequate tuning or not enough air being pushed into the engine for the size of the injectors

 

Yeah that's kinda what I was thinking. If it's atomizing at the lower settings then it should b at the higher ones too right? I'll try to get ahold of another boost gauge and will reply back.

 

15lbs is what a bone stock make with boost leaks. A well running stock truck without any boost/pre turbo leaks is around 17-18. Be for I pulled my engine my truck would make 19-20lbs with just a dp and 6637