SideWayzta

so i put headers on last week and ordered two new flat 02 sensors(which i believe are the front two) as well as extensions and got the computer reading for the service engine light that said bank 1 sensor 2 and bank 2 sensor 1 and i only have the two flat 02 sensors hooked up and the two square ones are zip tied up (I plan on getting the square which i think are the rear deleted as well as the A.I.R. and E.G.R. all deleted) but that is what the codes said and now i dont know which ones are bad or not i need help with this, the car is running poor and stumbling a bit and there was also multiple cylinder missfire so...I also noticed a little spark by the coil but pushed coil wire in further and it stopped

ulakovic22

iTrader: (12)

Computer tuned to turn off the back O2's? You zip tie the extensions up so they didn't burn on the headers? Were your headers coated or not?

SideWayzta

not coated but i need new wires a new temperature sensor, and i need to get the rear 02s deleted but after that will it be fine do you think

SideWayzta

Anyone???

J_Z28_T

iTrader: (2)

shud be fine bro just try to keep the wires safe, i ran my temp wire from behind the motor underneath the headers in stead of in front of the motor. also i made my own o2 exstensions just color code the wires and splice its easy and saves 20 bucks!

SideWayzta

well ill get the rear 02s egr and air deleted fri. and let you know if that helps

Schweet97Z

iTrader: (35)

what do u mean by flat 02's? if your using 02 sims for the front two oxygen sensors somehow, that is wrong. you need actual oxygen sensors put in the collectors of the headers. the rear 02's need deleted or yes you will get a code, along with the AIR and EGR. you should have gotten a tune, before you did the headers. you need to clearify in ur post more, its really confusing...to me anyways....

SideWayzta

well the new 02s i ordered had flat, oval connectors, and the ones that are hanging have a square connection, and does anyone think if it was my 02s that it would be acting up this badly, b/c it stumbles and studars and when i first got the pipes back on it ran great for about 10-15 min, and then it ran like crap after i shut it off and started it again

Schweet97Z

iTrader: (35)

what brand of 02's? also check your plug wires to see if they are touching your headers or see if you routed them wrong....its possible, so double check

ulakovic22

iTrader: (12)

My guess is something is wrong with your O2's. It's fine in open loop, but as soon as it goes into closed loop and starts using the O2's it runs like crap. Make sure your O2's are good.

SideWayzta

well i got new acdelc 02s and the rear ones are just plugged into the plug in and the actual 02 is under the car zip tied up somewhere

BTC

So, your rear O2's are plugged in, but aren't inserted into the exhaust stream? My car is a '94, so I'm not familiar with rear O2's, but I would think that might be a problem.

SideWayzta

ya i figure that is the main problem, and i hope othing happened to one of the new ones