Have 2001 Ex...119K miles... Trans 1 1/2 yrs old.. new COPs, harness, cables etc.. new spark plugs... just replaced 3 sensors (1 on diff rear, 2 output on top and back of tranny.. ). Turns on great, however as soon as I put it in reverse and have it idle, the O/D light starts flashing and engine sputtering like it wants to die. The codes were P7020 and P07022. Any ideas anyone?

 

Check ur battery and alternator. Mine did the same and that's what fixed mine.

 

If the alternator starts to go bad and put out an AC current instead of a DC current it can do this. You need an oscilloscope to see this.

You could also have a wiring issue between the two sensors and the PCM.

 

Thanks... Will check on these. Any and all suggestions/ideas are greatly appreciated....keep them coming !