Jphipps440

I was pulling fuses and relays checking them to get my power windows working 2 days later my car started sometimes idling high. Now it idles high most the time. I can use my scan tool to erase cel codes and it idles perfect for about twenty miles or so then idles high again. Only engine code is p1320 whitch was on before idle problem. Thanks for any help.

vqmaxman

P1320 is the ignition coils code. Check all the coils on all the cylinders they can cause the car to have bad idle behavior.

Jphipps440

I put new coils on about 2 weeks ago but it was a cheap set . How do i check coils. I have a multimeter and a wire testor. Will it hurt anything if i remove battery cables for a couple hours to reset ecm. Thank you

Maxima 97 SE

Check the tps sensor wires. They have a loose connection issue. Mine did the same and I found the harness to have a underlying fault. Try wiggling the wires and see if it returns to normal.

PH98I30

If you have an ignition coil cel, you should address that problem before trying to fix anything else. It might solve your problem. Search the threads for solutions to coil problems.