Problem Reports
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2001 Nissan Maxima
Check Engine Llight Due to Failed Ignition Coil
The Check Engine Light may illuminate indicating a primary ignition signal fault. Many times the cause is an ignition coil(s) that has failed. The problem in the coil causes the spark energy to feedback through the wiring harness into the other coils. If this is not repaired, it can damage the other coils (blistering on the coils may be seen).
Oxygen Sensor May Fail Due to Leaking Power Steering Pump
Oxygen sensor failures are common due to fluid leaks from the power steering pump. The power steering pump typically leaks directly onto the sensor and causes the wiring to fail. If the leaks are not repaired when the oxygen sensor is replaced, the sensor will fail again.
Drivability Concerns Due to Corroded Ground Inside the Mass Air Flow Sensor
The ground inside mass air flow (MAF) sensor can corrode and possibly cause drivability problems. The corrosion is enough to affect the sensor data but not enough to create a trouble code. Diagnosing this can be difficult because it won't always illuminate the Check Engine Light.
Various Electrical Issues Due to Damaged Engne Wire Harness
One or more wires in the engine wiring harness may break at the harness bend near the right strut tower. Symptoms include: Check Engine Light illumination, rough idle, drivability problems, and/or an inoperative air conditioner. Any broken wires will need to be repaired.
ECM updates for Check Engine Light issues
Software/programming updates to the Engine Control Module (ECM) are available to help solve some issues with Check Engine light illumination.
Idle Speed Control Motor May Fail and Damage ECU
The idle speed control motor may fail and possibly damage the engine's engine control unit.
Catalytic converter and 02 sensor failure
Bought car new in 2001. Replaced cat po420 at 68,000 miles along with 2 o2 sensors according to T.S.B.(no code for o2 sensors but needed replacement according to nissan). At 86,000 cat po430 replaced. At 88,000 po138 & po139 replaced o2 sensors. At 129,000 cat po420 goes again along with the 2 o2 sensors and maf sensor ($1,600 fix). Service manager agrees as well as mechanic that this is a common problem on '01 max's. Have too much invested in...
Crank angle sensor may fail
The crankshaft angle sensor may stop functioning. Failure of the sensor may cause an inability to regulate the engine's timing, causing the car to drive poorly or fail to start.