Ok so I will be replacing the cps and rear o2 sensor. I just put in the o2s last year and I got them from rock auto (I forget which brand) but apparently they sent me the wrong one for the rear or something because it is throwing all kinds of codes and I have a rough idle and I can smell a strong smell of gas upon start up and when it is running rough. So which brand am I going to want? Then if that doesn't work, the next logical procession (since it will be the only thing I haven't replaced) is the cps. So any recommendations as to which kind I should get. Then finally, my dad bought me a new iac from autozone the other day



Is that a good one or no? It turned the check engine light off and the rough idle went away, but it still lurched forward. Then the other day the rough idle and check engine light reappeared! Autozone said that if it didn't work I could take it back. Should I get a different one or is it not the problem? I'll probably replace the rear o2 first then go from there to see how it acts. Thanks for the help!

 

For o2 I would go with denso, for the cps look for standard, non T-series, I work at an auto parts store and I haven't had any complaints about them

 

Chrysler Mopar parts are expensive and Good. The dealer parts counter isn't convenient if you have to miss time off work to pick up parts.
I've had excellent success with Napa IAC parts, price is less than mopar and they are open saturdays.
For O2 sensors, if i have a choice, Bosch works 1st for me.

 

Yes I bought Napa CPS and they work well, had problems with all BWD sensors I've tried.

 

I found out I have ntk o2sensors. The rear one seems to be bad. So I should go with bosch?

 

NTK is a good brand, quite a few like the Bosch too. My personal preference is Bosch on the older motors, NTK on the newer- but it's sorta like choosing the right beer, lol. If one is cheaper than the other- done deal.

 

Get an NTK o2 sensor from rockauto.com and a CPS from the dealer

 

For CPS, go with one from the dealer. My brother got a cheap chinese one and his jeep runs like crap.

 

X2 on this for HO Jeeps. NTK was the OEM for the O2 sensors. Bosch made all the Renix ones. For other stuff I think BWD is a reasonable brand.

As for your original post have you tested your TPS? Sounds like it's shot.

 

My thoughts exactly.

 

this

NTK is OEM

 

I already have the ntk. I put them it in last year. The front is getting good readings while the back is not functioning properly. Maybe I got the wrong one? I am just gonna grab one from the jy then check the readings. If it is still reading bad then it is the wiring. If it reads good then I will just order a new ntk one or something.