doesn't the cam position sensor control the spark and injector timing?
which results in intake backfiring when its off.

where the crank position sensor monitors misfire detection and engine running status?

 

Couldn't get that truck off my mind so I went to it and I checked the 02 sensor and I was able to wiggle and twist it. Should I buy one and replace it tomorrow and also do the non fouler mod too?

 

which O2, the front (pre-cat) or the rear (post-cat)?
and do your problems occur with both a cold engine, or warm engine only?

either unplug both O2's and temporarily run without them (to see if it changes anything), and/or replace whichever one the CEL reported was shorted out.

unless you're getting a cat efficiency error, i wouldn't bother with the non-fouler. its not your primary problem.

 

It is the rear one, and it ran the same with both a cold engine and a warm one yesterday. I am getting the two oxygen sensor codes but do not believe I am getting a cat efficiency error. Also like I said before the guy at O'Reilly's said there were three codes that his reader couldn't see and I am wondering if maybe one of them could be the problem

 

Can position sensor controls injector timing. That's it. Crank sensor tells the PCM when a cylinder (but, not which specific cylinder) is approaching firing position. PCM then decides when to fire the coil.

Cam position is just a hall affect switch. It is On for one crankshaft revolution, and Off for one crank revolution. Basically, it changes state when either cylinder 1, or 6, are coming up on firing position. That clues in the PCM which injector to fire. (and consequently, the three following.) If it changes state too often, or, not often enough, you get some REALLY strange performance problems..... there wouldn't be anything consistent about it. Crank sensor, on the other hand...... Remember the thread by a member a while back (can't recall just WHICH member.....) that had weak spark on several cylinders, leading to unstable idle? He replaced the crank sensor, and the problem went away. (much to my surprise.....)

 

So what do you recommend I replace next?

 

Did you do this or not? Start there don't just throw parts at it, unless your rich that is. When you have the results post them.

 

Haven't had time yet, I'll have my roommate drive me to get one after work

 

Have you pulled the plugs on the suspect cylinders and cranked it to confirm you are getting spark on thos cylinders? If not I woukd start there. Pull the plugs one at a time and put the plug wire back on it and have someone crank it.

 

Do I pull the plugs out then just connect them to the wires and start the truck and look for a spark? I just got home from work and was going to start the compression test and I got the clip off the fuel line but I cant pull the line off. And the clip looks different than the one in the service manual