Q&A

 Journeyman

Throttle position sensor?

I have the same Problem it happens at low rpms and chugs alot i have change sparkplugs to and no luck right now im trying to clean my injectors if i find the problem i will let you know! s.tatton@hotmail.com

 Rookie

I have the same problem and I've replaced just about everything i can think of. I'm thinking it's either the differential or exhaust

I did the runaround of replacing parts. finally I tried disconnecting the wiring harness from the exhaust manifold oxygen sensor - then ir ran great. turns out it was a bad oxygen sensor sending bad information to the computer.

i also had this issue, it started out with a little bit and then would sputter all the time unless the RPMs were pretty high, then i took out my exhaust manifold O2 sensor and it was broken completely, had some issues with the heat shield coming out, the AC lines where in the way, i dint have all my tools, i was on the road on vacation, so i only had my little tool box...and there is a big nut that the sensor screws into and that came out with it, took it to schucks and they got it free, but also stripped the threads, but i found a tap and rethreaded it, and i bought the new sensor and now it works great

I had the same exact problem! At high rpms it bogs down it is the fuel pump! thats what mine was!

It is more than likely your massair flow sensor. I went through wires, plugs, gas treatments and it still ran bad. When I got my new sensor it ran like a new truck.