ok my car has been running like ****. i have had problems before and it was plug wires. no big deal. today i checked all the wires and one was off a little bit. so i am thinking theres the culprit so i push it back on and take it for a test drive. car drives fine. so then i am thinking ok a quick and easy fix. later on today i take the car out and it runs like **** just like it has been. i am like what the ****? so i take it to advance to get a diagnostics test. throws these codes:

P0155 -O2 sensor heater, circuit malfunction (bank 2 sensor 1)
P0300- Random/multiple cylinder misfire detected.
P0410- secondary air injection system malfunction
P0412- secondary air injection valve A malfunction
P1153- Manufacturer control. fuel air metering.


ok so i know the air injection cause i got rid of it with header install. the misfire is probably a loose plug wire even though i have checked the wires like 100 times since yesterday. the P1153 i am not sure about and the P0155 is that just a bad 02? i have sims in the back and ext. in the front, which one is this and what do i have to do?

thanks.
chris

 

ttt....

 

please help

 

Bank 2 sensor1== passenger side front sensor--heater code is usually a bad sensor-replace it.

 

thanks man i appreciate it. would a bad sensor throw the P0300 code also and make it run bad like a plug wire?

 

If the O2 is dead and giving bad readings it can cause the car to run like crap. The car running like crap could cause a missfire code. Also, The front sensors are the ones used to adjust fueling.

 

I really dont have any advice on how to help But I am getting similar problems. I threw a P0155. I have not thrown a misfire, but my missfire detection is turned off. I have gotten a loose spark plug wire and then messed with them and the truck ran fine. I am going to replace my wires and then see what happens.

 

Ideally if you can log some o2 sensor voltage that would show if its shot.

 

Are your O2 sensor harness and plug wires touching your headers...?