That's what I noticed last time it was in a shop I got charged 1500 for a sensor and I'm the one who pointed them in the right direction,never again

 

You really need to buy a scanner (for any OBDll vehicle) even the cheap ones can read basic data. I got one from Amazon my parents got me and they said they paid $20

 

Yeah uselly use autozones but I probably should my trucks never had a code pointing In a direction for this so idk maybe I'll just get a sct tuner it prob just has the death flash and has no power because of it if replacing the engine and transmission didn't change it it has to be the computer.if it was something else I'm sure since it's been a year I would get a code for somethimg

 

Not always the case these trucks didn't get a good code setting program until 01. HeyYou ran a truck with a dead cylinder without getting a code at all.

 

I guess we'll I need to find a scanner

 

Know a buddy at AutoZone or Advanced? If so use theirs an take pics of the data. If not they won't let you see says because it's a liability on their part (don't ask me how because it's a stupid rule)

 

I can do that or maybe grab one from harbor freight I need one I can see the date though and then I gotta be able to know what it all means lol

 

These days that's what it's all about I know the hands on stuff but the tech computer stuff not so much I'm sure I can read up on it and figure something out

 

Absolutely can. Even a HF one will work (at least should) allow you to see basic data

 

At one point, the various auto parts stores wouldn't read ABS, or SRS codes, due to liability reasons..... But lately, I can walk in, ask for a scanner, and they'll hand me one that will do PCM, ABS, and SRS, and read most codes. No clue what changed. (probably doesn't hurt I have been dealing with them for more than 20 years.....)

In any event, if you work on OBDII vehicles, even if it's just your own, a scanner is just about a requirement. Or, knowing someone that has one, and knows how to use it..... Since you aren't getting codes, the PCM apparently doesn't think anything is wrong. For a lot of those sensors, the PCM doesn't have any clue if the readings it is getting are accurate or not.... unless they are WAY out of range, or not there at all....

I suspect you have a wonky sensor, or something that the PCM can't figure out, so, it just goes on about it's business, running the engine the way it *thinks* it should.....