TheEnder53
Member
- Joined
- Jan 13, 2024
- Posts
- 75
- Reaction score
- 84
Hello all.
I’ve had some confusing issues with my Tahoe since I bought it stemming from the 02 sensors.
Originally, when it was colder out, I would get a repeated P0157 only if i beat on it. Had to be at or near wide open throttle for it to set. I was able to get it smogged here in California.
Now, it sets all the time, even when i’m not beating on it. It takes a few miles, but it will always set.
Today, after coming to a stop, i realized it had literally no power at all and would rev all the way up to 3-4K with light throttle and then shift very fast (like it had a shift kit) and struggled to hit 55 on flat land. Checked codes, had a code set for P0131.
Cleared it, hasn’t come back since. P0157 is there still however. The B2S2 02 Sensor is new (replaced in March) from Autozone and reads 0V at all times according to my scanner.
Unrelated, or possibly related, today was a very hot day. Around 115°F here where I live. Stopped in traffic because of an accident with my phone hooked up to it the engine was hovering around 225-228°F, which in my mind is overheating. It cooled down if I put it in neutral and revved it to around 1500 RPM. A/C was also blowing maybe 10° colder at best. Sounded like a jet engine once traffic cleared though and it returned to normal temps.
Reading around i’ve heard a few people say it could be maf, or something else. Where do I start?
I’ve had some confusing issues with my Tahoe since I bought it stemming from the 02 sensors.
Originally, when it was colder out, I would get a repeated P0157 only if i beat on it. Had to be at or near wide open throttle for it to set. I was able to get it smogged here in California.
Now, it sets all the time, even when i’m not beating on it. It takes a few miles, but it will always set.
Today, after coming to a stop, i realized it had literally no power at all and would rev all the way up to 3-4K with light throttle and then shift very fast (like it had a shift kit) and struggled to hit 55 on flat land. Checked codes, had a code set for P0131.
Cleared it, hasn’t come back since. P0157 is there still however. The B2S2 02 Sensor is new (replaced in March) from Autozone and reads 0V at all times according to my scanner.
Unrelated, or possibly related, today was a very hot day. Around 115°F here where I live. Stopped in traffic because of an accident with my phone hooked up to it the engine was hovering around 225-228°F, which in my mind is overheating. It cooled down if I put it in neutral and revved it to around 1500 RPM. A/C was also blowing maybe 10° colder at best. Sounded like a jet engine once traffic cleared though and it returned to normal temps.
Reading around i’ve heard a few people say it could be maf, or something else. Where do I start?