The P0202 code indicates a problem with the fuel injector circuit for cylinder 2 on a Jeep 4.0. To fix this issue, start by checking the wiring and connectors leading to the injector for damage or corrosion. If the wiring is intact, test the injector itself for proper operation using a multimeter or by swapping it with another cylinder's injector to see if the code follows. If the injector and wiring are both functional, the issue may lie in the Engine Control Module (ECM) and may require further diagnosis or replacement.
Here is a video on how to fix engine code p0449
ABS Wheel Sensor requires replacement. Easy 15 min fix and $17.00 part
Replace the engine.Replace the engine.
replace the sensor.
Diagnose the problem and fix it
You have to fix the cause of the code that turned the light on. You will need a scanner to read the code.
how to fix or check po 206
PO196 mercedes
If it is deep in the engine, the engine may need repaired/replaced.
How to fix dodge grand engine code P1391
How to fix Dodge grand engine code P1391
ac clutch relay open or short circuit