P1201
Fuel System Failure Caused No. 1 Cylinder Misfire
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)
Symptoms
- The engine runs rough or rough
- Reduced engine power
- Increased fuel consumption
- Check Engine light comes on
- Engine vibration at idle
Causes
- Malfunction of the fuel injector of cylinder 1
- Fuel injector clogged
- Problems with the fuel pump
- Low pressure in the fuel system
- Faulty wiring to cylinder 1 injector
How to Fix
- Check the condition of the fuel injector of cylinder 1
- Test the pressure in the fuel system
- Check the wiring to the injector
- Clean or replace fuel injector
- Check the operation of the fuel pump