So, I have a 1996 GXE Maxima with the following trouble codes:
0201
P1320
P0136

I checked the codes using a code reader and the ECU/screw method. 0201 is likely an ignition coil, but I don't get an additional cylinder misfire code. These codes have been coming for a few weeks. Last week I changed the plugs, and the left rear cylinder as you look from the front of the car looked like it wasn't getting good spark. The other 5 looked pretty good. But why am I not getting a misfire code as well? On occasion, the car will "pulse" a bit at various speeds.

I have replaced the rear O2 sensor last winter (November 2008) from oxygensensors.com. But code P0136 indicates this O2 sensor is bad. Bummer, as I don't think there is a warranty on O2 that O2 sensor. Why am I not getting code 0707 when I check the codes with the screw/ECU method, but I get code P0136 with the OBD-2?

So should I get a new rear O2 sensor, or new ignition coil pack for that cylinder, or ?

Thanks for the help!

 

IIRC rear O2 sensor not really important unless you need to pass emissions test.
You prob can get a used coil for like $15 in for sale section, easy way to test\ replace if it is cause

 

No one else has any input? Why wouldn't the OBD-II and the Maxima error codes correlate?

 

If i'm not mistaken, unless you did exhaust work to your max, you should have 3 cats which most likely should in turn give you 2 O2 sensors....so possibly the one u didn't change it the bad one?

 

depending on cali or fed spec.