Hi guys I'm new to the forum and have a problem my 99 Dodge ram 5.2 4 x 4 feels like I'm pulling a heavy trailer it has no get up and go I don't expect it to be a hot rod but I know what has more than what it's given me now my TPS sensor is reading 12% on idol and 86% at full throttle. From what I can gather the TPS supposed to rain around six at idle and 100% at wide open throttle and I could be wrong put a new TPS sensor on there and seeing results any help would be appreciated

 

Have you checked the plenum? Last time it was tuned up? Converter tested for blockage?

 

Brand new motor 100 miles on it bought it as an unfinished project has fresh trans fluid atf +4 and new governor pressure sensor and the other one that's next to it

 

New motor but probably a clogged cat

 

Anyway to check it with out cutting it out? Also I have exshaust coming out of tail pipe if it were clogged would anything come out?

 

This thread describes how to check for a clogged catalytic converter.


https://dodgeforum.com/forum/2nd-gen...um-thread.html

 

I had a mechanic from my work hook it up to a scanner and he said my cat was fine. Would he be able to tell that from a scanner?

 

Only that the PCM wasn't whining about "cat efficiency"..... and the PCM is easily fooled.

Remove the front O2 sensor. Go for a drive. Does it run better? Then the cat is clogged.

Oh, and: Welcome to DF!

next question becomes: Rebuilt motor??? What went into it? Is it all stock, or were somethings "improved" upon?

 

All stock from what I was told. Do I take the o2 sensor before the cat or after? The motor only has 100 miles first oil change has not even been done I bought it as an unfinished project

 

Yes, remove the one BEFORE the cat. It will throw a code, just clear it when you are done.