My '96 S10 Blazer..... P0102 and P0122 Gremlins.

[99bonnieSE]

After my motor swap, i'm still undergoing the p0102, and newly, the p0122.


I replaced my TPS with a junkyard one , that seemed to do it for about a day. Well, here's an explination of the issues i'm having.

http://www.youtube.com/watch?v=OXGMWHxPNUI


BY THE WAY, after this video was recorded, I stripped down the entire engine harness , and followed the wires from the plug all the way to the computer on both the MAF and TPS. Found a couple breaks in others, fixed them, and found a dang butt connector in the plug going to my coil. WTF, cleaned that all up, put it all back together, took it for a run, no problems. Got to Advance Auto, put the computer on it, still pulled a code for P0102 and P0122. Cleared the codes, only P0102 came back up. Drove it home, ran great. No harsh shifting, and had overdrive.

EDIT: This morning I go to get in it to go back up north, and just starts up all of the same issues again. I will post A video of the explained problems.

[99bonnieSE]

http://www.youtube.com/watch?v=4l-KchaDfCw

[99bonnieSE]

Could it possibly be a ECM problem?

[99bonnieSE]

Could it possibly be a ECM problem?

[Jrs3800]

Hard to say... I think to help you the best you need to look at the real time data to see what the PCM is seeing.. Has to be something going on with that TPS circuit...

[99bonnieSE]

It just doesnt make any sense...... I spent 5 hours going through the wiring harness.... followed the wiring from the plug for the TPS all the way back to the ECM..... didn't find anything

[99bonnieSE]

And to top it off, it just snapped a tierod in the end of my driveway

[Jrs3800]

Wow that thing had turned into priceless...

I wonder if you are getting the 5V reference at the TPS like you should be...

Sandrock installed a 97 harness for me... We ended up with a freak show of TPS issues... we tracked it down to the 5V reference... The 5V reference for the sensors most of the time has 2 lines, one branches off to the TPS, MAF, among a few...

The only cure we know of for sure is to ditch my current harness... Not worth the time to fix it..

But we were scanning when we figured out the issue... TPS was going nuts This is due to the issues with the 5V reference...

If you can get a live data scanner on it do that first and see whats going on...

[99bonnieSE]

http://www.youtube.com/watch?v=8V89VMRG53g


ITS GONE!?!




All i did was check voltage at the TPS and MAF. Plugged them in, put the scanner on (typically because you would need to clear the codes to start it every time, but they wouldn't clear) and they cleared. they havent came back. no light. NOTHING.

[Jrs3800]

Thats really strange...

[99bonnieSE]

Thats really strange...

It was most likely bad connections. Me and my buddy were fumbling around with the MAF connection, it was quite dirty. The TPS, i have no idea. Just gone. Now for the heck of it, I turn on the scanner right before i start the truck. Only code is PO113 ITS high input. No biggie.