Out of ideas, looking for a few suggestions
#1
Out of ideas, looking for a few suggestions
Hey all, I have a 2004 dodge ram 2500, 5.7l Hemi 4wd
I have two codes that just showed up, po157 and po300. The po157 is a O2 sensor and the po300 is a missfire code for multiple cylinders. I changes the O2 sensor and reset the computer, code came back and light back on. The truck got a new fuel pump and filters 10 thousand miles ago, changed spark plugs 1k ago. I am kind of out of ideas, the next thing I was going after is a grounded wire or a bad computer module.
Thanks for any suggestions or anything!
I have two codes that just showed up, po157 and po300. The po157 is a O2 sensor and the po300 is a missfire code for multiple cylinders. I changes the O2 sensor and reset the computer, code came back and light back on. The truck got a new fuel pump and filters 10 thousand miles ago, changed spark plugs 1k ago. I am kind of out of ideas, the next thing I was going after is a grounded wire or a bad computer module.
Thanks for any suggestions or anything!
#2
Super Moderator
O2 cencors should be replaced at 100k, there fairly cheap at rock auto.
#4
Alright, that will be where I go. Lets just say that doesn't fix it, where would I go next? chasing wires and maybe even a bad computer?
#5
Yeah, check the o2 sens wires for sure. They get damaged often and its' tough to see them. If the voltage isn't correct, it'll send a fail. Do you actually feel/hear the misfires?
#6
Yes, on cold start if you let it idle for like 45 seconds it gets really bad. Also taking off from a start the truck shudders and jerks
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