[Stang187]

Well a few weeks ago I ran over some concrete which f'd up my exhaust some what. When I ran over the concrete I got an exhaust leak that was obvious since my exhaust hissed loud when I pressed on gas, I also got a cel. Went to Autozone checked cel. Showed that all my sensors are bad. I took a guess the piece of concrete must of hit one of my o2 sensors. The next day I took it to an exhaust shop to get my exhaust leak fixed, which they couldnt since the flang was a bit bent from the damage. So I just had them cut them both off and weld the exhaust together permanently. Then I asked them about the cel to, they gave me the same answer saying that my o2 sensors are bad and should get them replaced to make the cel go away. So while I was there I got the bottom 4 o2 sensors all replaced. After they were replaced the Cel was still on and I was like wtf. The guy there told me that now the cel is because I have no cats. Now Im like confused and thinking now my MIL eliminators are f'd from the concrete or something. Now Im currently riding around with a cel on. The problem I have now is my car idles all funky, and almost everytime I put my car in park after a good ride the rpms drop way below 500, almost to like prolly 200 rpms, my car then vibrates and feel/sounds like it going to die. This never happened before the incident. I have Mac longtubes/off road h, & catback.

[ewells2420]

Odd. Might have messed your MILs up. Try disconnecting your battery to clear the codes. I think ive read you disconnect the + and - then touch them together to reset the ECU. Not 100% though.

[Stang187]

i did that. It turn the CEl off. but it will come back on if I turn the car off and back on again.

[Stang187]

what would create the problem of puting it in park and the rpms drop like a rock and my car seems like its going to die but doesnt. My car starts right up and everything. Just idling funky and the whole put in park problem.

[Stang187]

yah... I was backing out of a spot and didnt see a piece of concrete that was made for parking, it was broken in half and I ran over half of it. The concrete smashed into my driver side longtube header & one of the O2 sensors, then scraping along making a dent in the off road H Pipe.

[Avaric3]

wow, idk how you even managed to do that

[Stang187]

well, they did some construction in this area by the beach where I go daily to check the surf, they decided to put parking concrete things in the sand since people started parking where ever,at any angle they wanted. So they made a dumbass decision to put parking concrete in, thinking that people would start parking correctly, which didnt happen because teenagers and people with large trucks would run them over on purpose breaking them in half and such. What happend was I pulled up to check the waves near dawn/dark. When I pulled up I didnt run over anything. Then when I went to pull out, in the same direction pulled in, I heard clunk clunk and my car jerked up a bit. I was so f'n mad. I was just posting this to see if any one here knew, or atleast give me an idea what would cause the whole parking rpm's dropping problem & funky idle as said earlier.

[Stang187]

not like u guys care but i think I found out what the problem is. Well Considering I replaced all 4 bottom O2 sensors for no reason, which didnt fix my problem. When I hit the concrete it must of messed up my mils or something because I went back to autozone to check the my cel and I get 11 cel's lol. All sensors showing problems and what ever else goes with having no cats. the person at autozone turned off my cel and when i drove home and parked it acted normal and didnt drop rpm's and acted as if it were gona die. Also the idle went somewhat back to normal. Now what I need is new Mil's or just get a tuner to turn off my cel codes. Which would be the best way to go?

[itschristorres8]

booooo for long post...cliff notes please..

[Stang187]

well you see..... i have long tubes headers, off road h pipe, etc.... and without mils my car will throw codes. So in doing so i need to turn these codes off or my car runs like poo, am i correct?

[mmikeclass06]

jack ur car up and check the wwire harness. most likely you grounded out a 02 sensor, broke a wire a few inches into the harness where its not as visable. or check to see which codes u are throwing and go from there.