I have a 99 maxima. Fed specs. I just replaced the 2 front O2 sensors last month and I'm still getting p0135 code anybody know what else I can do?

 

Code P0135 not found.

 

P0135. It's code for O2 sensor. Bank 1 sensor1 I just replaced both front sensors

 

 

front heated oxygen sensor right bank. EC-146 in the manual. Did you reset after you installed? the code doesnt always go away right after your fix the problem

 

You have to clear the code after the install. If it came RIGHT back on, then check your install. You could have twisted the wires or kinked them. Or it could have worked itself loose. You should only really need to hand tighten them down with some anti seize on them.

Could also be the harness connector part. Check for corrosion or dirty pins.