So I was driving today and the car felt like it was misfiring a little and drove a little rough. Checked the error codes and this is what I found.. It sounds like maybe bad Oxygen Sensors or a wire came loose somewhere. Any speculation would be appreciated.

P0134 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 1
P0154 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 2 Sensor 1

P0327 Knock Sensor (KS) Circuit Front
P0332 Knock Sensor (KS) Circuit Rear
C1281 Steering Sensor Uncorrelated Malfunction
C2110 Right Rear TPM Sensor Malfunction

 

All these codes are current? Any work done recently?

 

The two 02 Sensor errors are history codes, but happened when I was driving because I had previously reset the codes before I went for a drive. And yes we just put the motor in about a week ago.

 

Please tell the whole story up front, because a myriad of codes like this rarely happens by accident. For the o2's, I see you have headers, so I would inspect the wiring for heat damage. For the knock sensors, there is a good chance that you pinched the harness during the intake manifold install, or damaged the connector at the rear left side of the block.

Also inspect the EBCM wiring for damage since this was all disturbed, and can precipitate the steering sensor code.

 

So I found that the O2 Sensor wire connectors were melted to the headers :P Rewired those and car ran great. I received a new error which I figured was a false reading cause it was running pretty well.
P0171 Fuel Trim System Lean Bank 1
Then later on, it felt like it was misfiring again so I checked the connection and they were still fine. I looked up the new error code and it was:
P0134 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 1
So once again I checked the wires and they were not melting and were still intact. I reset the code and took it for another spin and that error didn't come back yet. I drove it again and it came back so.. Is the sensor bad or is it a wiring issue?

 

Looks like you've got bank 2 working, but I would recheck your work with the bank 1 O2 wiring. Best to use a DMM to ensure everything is good.

 

Will check tomorrow and keep you updated, thank you.

 

Sorry haven't updated in a while.. had some issues. First off, the car was idling really rough, wouldn't stay on and was misfiring. I determined it was my MAF, so I cleaned it very nicely and put it back in and still same issues. So I took an old one, cleaned that and put it in and the car runs almost great. The problem I am having now is I still have a misfire when I open throttle. I also still have the 2 Knock Sensor errors. (Haven't solved that issue yet and don't haven't had time to take intake manifold off yet) I don't have any misfire codes so I am pretty confident that it is a sensor issue. My question is this.. Being that I have the knock sensor errors, is it possible that it is causing my misfire? OR.. Is it more likely that I just need a Brand New MAF Sensor and that is causing the issue?

 

If the knock sensors are malfunctioning you probably can get into detonation when you "goose it" most likely. Not sure what mode the car will be in if both are sick-I would imagine some base timing table with too much advance in it for WOT.

 

I would not be worried about the knock sensors creating detonation, as much as I would be concerned about them sending a false knock....resulting in the PCM pulling timing under acceleration.

 

Ok so I was running the car without the O2 Sensors connected and finally decided to rewire them today. So I rewired them and connected them, made sure they were perfect. I also took off the intake manifold and made sure the knock sensor wires were ok, which they were. I started the car and it was running ok, if you 'goose' it, it still misfires. So after letting it run for about ten minutes I received some error codes.

P0134 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 1
P0154 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 2 Sensor 1
P0300 Engine Misfire Detected <------

I decided that maybe it just wants to be driven :P so I went for a ride. Before I left I reset the codes. As I was driving, it felt like it was running really rich and could barely stay alive. It was misfiring worse than it has ever done, wasn't holding an idle, and smoke appeared to be coming out of the cats. (The assumption was that fuel was getting trapped there and was being burned.. just an assumption) When I got home, I rechecked the codes..


P1133 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
P1153 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 2 Sensor 1
P0327 Knock Sensor (KS) Circuit Front
P0332 Knock Sensor (KS) Circuit Rear
P0300 Engine Misfire Detected
I am totally lost and have no idea what could be causing the misfire. I have no other codes indicating any specific cylinder. The car misfired even without the O2 Sensors connected..(But ran so much better lol)
Any ideas would be greatly appreciated.

 

Just a couple of dumb thoughts to add to the mix, is your coolant temp sensor working? That's a super important item that controls the mixture, nearly as important as the MAF. On the rear of the driver's side head is a ground wire connection that needs to be tight or will cause misfires. Since you had the engine out, what about the MAP sensor and the hvac tube off the rear of the intake?

 

Coolant Temp Sensor is working correctly. All vacuum lines are tight and all grounds are secure. I disconnected the Oxygen Sensors again and the car actually runs. I am still however still getting a misfire, but the only codes are the O2 Sensors and the Knock Sensors. I'm going to replace the MAF with a new one this time and we will see if it goes away. I cannot think of anything else. I'll let you all know when I get one, if anyone ahs any other ideas, let me know. If there was a specific misfire I should be receiving a code for it but I don't. That is why I believe it is my MAF.

 

I didn't buy a MAF yet but I went for a drive the other day cause I had to go somewhere and it was raining. Well, when I went to use my wipers, but they didn't work. Ok.. I have RainX so not a big deal I turned em off. About 5 minutes into driving, they came on really fast a couple times and then stopped... right in the middle of my windshield. The button still doesn't work and about every couple of minutes it does the same thing. The have a mind of their own. Also, 1/2 the time my dash and rear lights don't come on when I turn my lights on. They usually come on after I start my car for a little bit or just never come on. Sometimes they work perfectly. What is going on? I can't seem to find anything on google that helps. All the wires seem fine, I don't even know what controls these things, the BCM?