ive been having issues with my oxygen sensor causeing my already gas gullzzing 97 5.9l to run even richer i just replaced the o2 sensor cleared the code but every thime i rev the truck to around 2000 rpms chech engine light kicks back on with the same code i think it may have to do with my intake its aem brute force part number 21-8202DP any help with this would be great

 

What brand 02 sensor did you use? General concensus is Bosch bad. NTK or Denso good for magnum engines.

 

^ ntk

 

You didn't say, but I assumed you replaced the upstream 02. What is the same code?

 

I doubt it has anything to do with the AEM intake. Get a haynes and a multi meter and check the IAT and ECT sensors as well. And yes, what is the code? And how are you clearing the code? with a scanner?

 

im checking the code with a computer reader thingy and clearing it with it too (sorry for my terminology isnt the best) but all three of the ones ive used have spit out the same code ill come back and post it later and it is the upstream and i did put a bosch but no where on the truck does it say it has the magnum engine

 

Your truck does have a magnum engine just so you know. Nothing special mind you. LOL

As far as the code # goes, I'm just curious as to what it is. And if you really want to clear codes and reset the pcm to reset it, disconnect the negative battery cable, turn on the headlights for a couple minutes. Turn the headlights off and reconnect the battery cable.