P1121 Engine Trouble Code
When you check engine light came on code P1121 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P1121 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
When your car's 'P1121 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.
P1121 Code Meaning :
|OBD-II Diagnostic Powertrain (P) Trouble Code For Engine||Fuel And Air Metering||Engine Oil Temperature Sensor Malfunction||Crankshaft Position Sensor A Circuit Malfunction||Glow Plug/Heater Circuit 'A' Malfunction|
The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.
P1121 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP1121 OBD-II Trouble Code Electric Throttle Control Actuator is one of the definitions for the P1121; however your vehicles manufacturer may have a different definition for the P1121 code. Please check below for your specific P1121 code.
Reason For P1121 CodeThe reason of P1121 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.
P1121 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.