I've read the 4crawler tutorial on how to adjust my tps but but I am get the same problem with a new tps. Starts up first crank idles a little high, heats up and gets rough, give it gas runs fine a little rough at idle then I will get the same issue again with no power unless the engine can make it pass 2k rpms and the whole time it's trying to get power I get huge black clouds of smoke from the exhaust. I'm not loosing coolant I cleaned the whole throttle body all vacuum lines are connected right I cleaned the dash pot I cleared my ecu.

 

Your running pig rich for some reason. I'd check the coolant temp sensor for ecu and maybe even the afm. What you have going on is not tps related at all

 

Well I was throwing a code for the tps and still am even after I cleared it

 

And the sensor your talking about is the one on top of the thermostat housing?

 

Here's what came out of my exhaust with the black smoke

 

That sensor is for the gauge. The ecu temp sensor is under the throttle body on the right. I believe

 

Just because you have a code for the TPS circuit does not mean you should run out and buy a new one .

Figure out what is wrong.

It means the whole circuit all the wiring and connections and the ECU could be any or all those things.

 

I tested it it had dead spots

 

Here's a pic of my maf it seems to have been modded by PO but I'm not sure any ideas on this

 

 

Don't think that sealant is from the factory...

If your TPS passes all the tests on 4Crawler's page then you can assume it's working properly, for the time being. Seeing as the VAFM was tampered with at some point, you could always test it and try leaning it off a bit. Just mark its position so you can reset it if needed.

 

Any thoughts on how u would go about trying to cut throught that with out damaging anything?

 

razor blade, cut the excess of the top. you will then see a groove of sealant between the plastic cap and the aluminum housing. Carve the sealant out completely, and the pry the cap out with the smallest flat screwdriver you have.

 

Did you use feeler gauges when you adjusted the TPS? The most important setting (from my own experience) is the 0.85mm IDL - E2 adjustment. Once I got that one right all my problems cleared up.



Also did you check the VTA throttle position sensor pin voltage at the ECU? Stick a multimeter probe in there and and one to ground... make sure that you're getting voltage. If you don't, you probably just have a bad connection somewhere. Should be in the range within 0-5V.



Also [carefully] clean the connector to the TPS and put a dot of dielectric grease in each socket. Mine was corroded and gunked up- I'm surprised it was getting a connection at all! All good now though.

I think the running rich would be the ECU running in protection mode. I can't believe that black crap that was coming out though, wow!

 

Also I have a dead spot when testing the TPS at around 4K VTA-E2, however when testing the VTA from the ECU there is no dead spot. Plus, the thing runs perfectly

Best of luck to you!

 

Wow Awesome in for thankyou so much. Did u adjust your tps with it connected and the throttle body on or off

 

You're so welcome, I did it with it off. And the feeler gauge (or something similar) is a must.

I actually used a cut up credit card + a slice of 2ply paper to get the 0.85mm. I measured it with a caliper. But seriously just go grab some feeler gauges, they will be useful if you ever want to adjust your valves as well

Adjusting on the car would have been nice, but I don't have the allen bolts yet.

It seriously is like a hairline adjustment. Alligator clips on the end of your multimeter will make your life 10x easier in this case for that reason so you can leave it attached and find the .01mm where it loses continuity at 0.85mm

 

I have the bolt that's hard to get to righted all the way and the top one that's easier with a stubby I left a little loose so I can untighten it and have some room to adjust I'm picking up some feeler gauges today

 

adjusting the TPS with the Throttle body connected to the truck is pretty much a b%&*$. Just pull the Throttle body off and get her done right. Take your time, you will achieve success.

 

I can do it pretty quickly do you think I need to change the gasket again as I just put it on less then 20 miles ago