well lastnight i was driving my car ,, and the car would not shift into 3rd! so i lpull over to a gas station and check tranny fluid its good and red , so i drive the car back home in second gear slowly,
I called my tranny guy today and told him whats wrong, he said drive it out to the shop let him look at it, well I started the car up put the car in drive and it shifted to 3rd and 4th had a slight hesitation when shifting to 3rd , I was like WTF well decided to go there any ways about 15 mins later I had 2 gears again IT started surging through the rpm range and quit I was stuck on the side of the road and sit there for a min got it started again still surging bad barely pulling itself, I finally got there he got in my car and drove it a block, he said it felt like the Cpu was messed up and causing it not to shift right, so he had a Snapon scanner we scanned my car and got code 51 Ecm Prom Error, and 72 Trans output speed sensor, he told me that the cpu is my problem not making the car shift right , can anyone help me with these codes? IM thinking maybe my passenger side header may have burned up my pcm wires? PLease help

 

i forgot to mention i had a couple other codes come up, and egr code,right O2 sensor Iac , AND a maf code, i think my pcm is alright its just my wiring my harness, is there anyway to test your wiring harness , where can i get one thanks

 

Oh god went out and started the car it revved to 1500 rpms then back to 800 rpms , just kept doing that i need help shoebox injuneer anyone