2G My story

[98eclipse2015]

ok here's my story and plz do not talk crap about why I'm haveing the probs I'm haveing with my car that would be great. I just got a 2.5 Catback + head from eBay and i have installed it myself ( prob a bad idea) the tail end where it meets the muffler did not line up right so i used my jack to try and line it up the best i can. I'm not 100% sure if that part is tight or leaking i was going to take it into a shop and have them take a look to make sure everything was good tomorrow. The next day i was able to drive it to work with a piping cap, drove it home and my car would want to die and idle really bad while at a stop ill have to give it a little gas to keep it going. Once i got it home i got a 5/8 inch flare cap everything looked good drove it around and it was doing the same thing so i thought it would be the throttle body gasket so i replaced it and still have the same prob also throwing the code P0171 (system too lean bank 1). I read somewhere that cleaning the o2 sensors would help and i notice they were all black but they weren't when i installed them in the Catback the other day and i also remember when i took the head it to get the Flare cap sized it was all black inside the pipes. I also found the same black stuff inside the throttle body when i installed the new gasket some people say its oil but im not sure any idea whats going on?
P.S
i should also add one of the head bolts is a lil stripped so its not torqued down to 17lbs like the others are

 

[Mello]

Ya know I'd like to help but I having a hard time. I can't find the beginning of any of your sentences, there's not any cap first letters. Sorry.

 

[98eclipse2015]

Ya know I'd like to help but I having a hard time. I can't find the beginning of any of your sentences, there's not any cap first letters. Sorry.

There i did the best i can sorry

 

[Mello]

A lot of your discription is sounding like a bad O2 sensor. Only the front one is used by the Ecu the adjust fuel. Regardless of have other problems your probably needing a new one. I would start with replacing it first.

 

[98eclipse2015]

A lot of your discription is sounding like a bad O2 sensor. Only the front one is used by the Ecu the adjust fuel. Regardless of have other problems your probably needing a new one. I would start with replacing it first.

I cleaned both of them and they had the black stuff on them but I'll look in to it. Of its not the prob what else could it be? I didn't have any problems with the stock at all

 

[Mello]

I've never had any luck cleaning O2's. Once the carbon gets baked into the sensor's ceramic element housing it's done. Save yourself some time & toss it and buy a new one.

 

[98eclipse2015]

I've never had any luck cleaning O2's. Once the carbon gets baked into the sensor's ceramic element housing it's done. Save yourself some time & toss it and buy a new one.

Since both of them were dirty just the same I'll just replace them both? Or should I just start with the front one by the head first?

 

[totaleclipse_05]

Unless the code specifically says the rear o2, I wouldn't bother with replacing that one. It really only throws a code if you don't have a cat or if it's bad. I've never heard of cleaning an o2 sensor so I would just replace it.

 

[chrysler kid]

Your story failed to include the year make and model of your car

 

[98eclipse2015]

Your story failed to include the year make and model of your car

98 RS

 

[98eclipse2015]

Unless the code specifically says the rear o2, I wouldn't bother with replacing that one. It really only throws a code if you don't have a cat or if it's bad. I've never heard of cleaning an o2 sensor so I would just replace it.

Good point

 

[98eclipse2015]

So it ended up being the O2 and it runs alright