My 1999 4Runner is now running with the check engine light on. The code obtained shows P1135. Any suggestions on what repairs will be needed? I originally went to get replacement 02 sensors, but was told by someone at AutoZone that the code obtained does not match with the o2 thought...
It is most likely the air fuel ratio sensor. Get the sensor from Toyota, and not an aftermarket part. Either your local dealer or an online dealer will have the part. Your dealer will sell the part for about $200, you can get one on line for about $145. It isn't a bad idea to get a gasket and new hardware as well. It is a pretty simple fix. Two nuts and a connector. If you are paying someone to do it, it shouldn't be more than a half hour of labor. It shouldn't cost you more than $300 to pay someone to replace it.
You probably won't even need a manual for that fix. It is pretty easy to find. It after the Y (if you have a v6) and in front of the cat. You can probably search the internet and find some write ups that are better than a manual.
I got mine from the dealer. I think they were about $3 each or some crazy amount like that, but it was easier than trying to find the right pitch at HD or some hardware store.
Yeah, the more reading I do, I know exactly where it is now. In the exhaust pipe, just before the catalytic converter. It is more or less a new name for the older O2 sensors. Thanks for the advice on everything including the $3 nuts. It's a rip-off, but more convenient just to give them $6 and know they will fit. I was assuming that the gasket would come with it, but maybe not through the dealer. I'll check it out....Thanks again.
OK, the A/F sensor was replaced with a sensor from Toyota, along with new nuts and a gasket. The job went well. However, the check engine light is still on. Does this require a manual reset? From what I remember reading, it resets itself. I'm just wondering if there may be a secondary problem, or whether I just need to be patient. Thanks again.
Reset it. I don't know if it will go out on it's own. Mine didn't, but I only drove it for a few miles and decided to pull the battery cable because I wanted to be sure it was corrected.
Thank you RobXS for your guidance. In the end, the A/F sensor was replaced, the negative battery terminal was removed for 15 seconds to reset, and the vehicle has had no issues related to the check engine light since. I appreciate your help!
P1135 code - 1999 4Runner
Linear Mode
