[willgresham34]

So I installed SP long tube headers with hi-flow cats on my own ( I have 0 mechanical experience) and honestly the installation wasn't terrible the worst part was getting the O2 sensors unplugged and unscrewed. After the install I got a check engine light and all codes were about the O2 sensors. Now I was told this would happen and I planned/plan on getting a tune, but right now I just don't have the money set aside. I was looking at getting O2 spacers or the mini cat adapters to get rid of the permanent codes but when I finally started reading into the codes, I am unsure if the codes are from the headers or if I broke the O2 sensors after install or I plugged them in wrong with the extension cables or something.

The codes I'm getting are as follows: P0030, P0031, P00132, P00135, P069E

P0030 is the heater control circuit in bank 1 sensor 1
P0031 is low voltage in sensor 1
P0132 is high voltage sensor 1
P0135 is heater performance sensor 1


I would appreciate any feedback as I am really at a loss for what to do next to fix this problem. Thank you!

[Need4Camaro]

I could be wrong but I think those codes have to be tuned out, or in some way adjusted at the very minimum.

[ctrlz]

Originally Posted by Need4Camaro

I could be wrong but I think those codes have to be tuned out, or in some way adjusted at the very minimum.

I think this is correct.
I would say immediate concern is for OP to make sure wiring harnesses are well away from the headers. Since he claims limited mechanical experience, he should be aware that the biggest problem with headers is melting insulation. That can result in codes and problems that can't be "tuned out."

[willgresham34]

Originally Posted by ctrlz

I think this is correct.
I would say immediate concern is for OP to make sure wiring harnesses are well away from the headers. Since he claims limited mechanical experience, he should be aware that the biggest problem with headers is melting insulation. That can result in codes and problems that can't be "tuned out."

Yes, I was aware that this could happen, so I made sure wiring harnesses were well run along where insulation would not get melted

[easttxss]

No, you shouldn't have to mess with the front sensors in the tune. I would disconnect the drivers side front sensor and double check that the pins are seated correctly and that a wire hasn't been damaged. If that checks out ok, then you may need to replace that sensor. If they are the original sensors they are probably at the end of their life anyway.

[ctrlz]

Originally Posted by willgresham34

worst part was getting the O2 sensors unplugged and unscrewed.

Did you use the special socket with the slit? I have not removed the sensor on this car, but others I have always used the special socket to avoid damaging the wires.
This set even comes with a thread chaser. I did not know it was common for these threads to get damaged. But I guess if they are rusted in it's the same as spark plugs. Maybe use anti-seize when reinstalling.

https://www.amazon.com/Oxygen-Sensor...zcF9hdGY&psc=1

[2SSolorio]

Whats up bro, did you ever find out how to fix those codes? I ran into those codes recently and have been stressing about it.

[clg82]

Originally Posted by 2SSolorio

Whats up bro, did you ever find out how to fix those codes? I ran into those codes recently and have been stressing about it.

You'll fail smog.

[2SSolorio]

Originally Posted by clg82

You'll fail smog.

Yeah I know that, I installed headers and I got those codes.

[KingLT1]

You will get o2 sensor codes if you don't tune for the headers. The response time gets delayed because the sensor never runs as hot as designed in long tube headers. Some codes need turned off and some other parameters need adjusted in the tune to account for the sensors operating at lower temps. And you will end up with a lot more issues if you don't relocate the wiring harness on the passenger side after installing headers as well.

[clg82]

Originally Posted by 2SSolorio

Yeah I know that, I installed headers and I got those codes.

Even without the codes, and your headers, you'll fail smog.

[bishopts]

Originally Posted by KingLT1

You will get o2 sensor codes if you don't tune for the headers. The response time gets delayed because the sensor never runs as hot as designed in long tube headers. Some codes need turned off and some other parameters need adjusted in the tune to account for the sensors operating at lower temps. And you will end up with a lot more issues if you don't relocate the wiring harness on the passenger side after installing headers as well.

My headers only had one rear sensor bung. Whoever had the car before put the rear sensor in the front hole and the front sensor in the rear. Obviously they cant plug in there so both were unplugged. I looked at it in amazement that people really are that dumb out in the world.
I just put the front sensors on and tossed the rear. Removed all the codes realated to rear sensors, cats, o2 heaters.
If i had all the components already i would have done all the tune first. Once the permanent codes set in the computer they have to pass on their own in order to clear out. But if they are removed beforehand they will never set.

[Joshinator99]

Originally Posted by bishopts

My headers only had one rear sensor bung. Whoever had the car before put the rear sensor in the front hole and the front sensor in the rear. Obviously they cant plug in there so both were unplugged. I looked at it in amazement that people really are that dumb out in the world.
I just put the front sensors on and tossed the rear. Removed all the codes realated to rear sensors, cats, o2 heaters.
If i had all the components already i would have done all the tune first. Once the permanent codes set in the computer they have to pass on their own in order to clear out. But if they are removed beforehand they will never set.

Good lord…unreal lol

Exactly right. It’s been posted 5000 times on this board that it’s WAY better to tune for cats BEFORE you install them to prevent the permanent code issues. Then simply fine tune the ECM after install is complete.