What does it mean when PCM says p0203?
Although generic, the specific repair steps may vary depending on make/model. P0203 means that the PCM detected a fault in the injector or the wiring to the injector. It monitors the injector and when the injector is activated, the PCM expects to see the voltage pulled “low” or close to zero.
What causes a p0203 engine light code to appear?
The causes of a P0203 engine light code could be any of the following: Bad injector. This is usually the cause of this code but doesn’t rule out the possibility of one of the other causes Open in the wiring to the injector Short in the wiring to the injector First, using a DVOM check the resistance of the injector.
What does p0204 stand for in engine control module?
The P0204 is set if the Engine Control Module (ECM) is detects a low or high voltage drop or resistance at the injector 4. Engine Control Module ( ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation.
What are the potential causes of p0108 code?
Potential causes of a P0108 code: Bad MAP sensor. Leak in vacuum supply line to MAP sensor. Engine vacuum leak. Short on signal wire to PCM. Short on reference voltage wire from PCM.
When to set the p0203 diagnostic trouble code?
The P0203 is a diagnostic trouble code that is set when the engine control module (ECM) has detected a fault in the injector circuit for cylinder 3. The ECM looks for a specific range of voltage and resistance from each injector circuit and when the results are found to be out-of-range, a diagnostic trouble code (DTC) will be set.
What are the common causes of code p0204?
To sum things up, the common causes for code P0204 are as follows: 1 Failed injector 2 Fault in the injector circuit 3 Problem with the PCM (injector driver)
What does p0203 mean on an injector?
P0203 is a diagnostic trouble code (DTC) for “Injector Circuit Malfunction – Cylinder 3”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What are the symptoms of a p0108 DTC code?
Symptoms of a P0108 DTC code may include: MIL (Malfunction Indicator Lamp) will likely be on Engine may run poorly Engine may not run at all Fuel mileage may decrease Presence of black smoke at exhaust