Ok, here we go again! I was driving home normal and I put it into 3rd gear then, got to about 3grand when out of no where it felt like someone clogged me exhaust or air filter. I had to drive the car home with my foot on the gas the whole time and almost to the floor to go anywhere, it was running like ****. I stalled out about half way home pulled her over and tried to start her up, when my car was back fireing ang engine shacking real bad. So i got it started and the car was running like crap, but it idle for about 2 mins on its own, so I finallly made it home. On the way home gauges where all normal and it did fell like the car wanted to run normal. So, I know that I had a bad stepper motor on the omp, and had a code for it, but now I have like 5 more codes, VDI,purge valve,solenoid valve,port air, and split air valve. So, I was like way to many things at once!!! So, I took the ECU apart and found about 4 different burn makes form some chips and etc..... My question is do you think my ECU is done and could be the problemmmm!!!! 90 GXL 2+2. PLEASE HELP!!!!!

 

First:
CPU= body computer
ECU= Engine computer

2nd, Burnt chips??? are you sure??? Or do you mean resistors??? Mazda ECU's have resistors on the outputs to act as buffers/protection circuits

 

Yeah I know its ECU I worked a 13 hour day and messed up when I wrote the header on the thread. I am sorry to all for any mix ups. The board has 2 little blavk type things that are burnt and to doides or tran....

 

With so many ECU faults at once, I'd look first at the ECU ground and the bell housing to firewall ground.
Also pull, clean & re-seat the ECU connectors.

The MOP fault could be just a connector problem also.