Question

I got the engine code P1126 on my 2001 Nissan Maxima, what are the probable causes?

Answer 1

For 2001 Nissan maxima that code P1126 NISSAN - Thermostat Function

 - Low engine coolant level
- Faulty Thermostat
- Leakage from sealing portion of the thermostat
- Engine coolant temperature sensor

 If no coolant leaks are present, replacing the thermostat usually takes care of the problem.

Answer 2

P1126 NISSAN Code - Throttle Control Motor Relay Circuit Open
Read more: https://www.autocodes.com/p1126_nissan.html