Injector 3 Control Circuit
Table of contents
P0203 PONTIAC Possible Causes
- Faulty fuel injector 3
- Fuel Injector 3 harness is open or shorted
- Fuel injector 3 circuit poor electrical connection
How do I fix code P0203 PONTIAC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P0203 PONTIAC code
The cost of diagnosing the P0203 PONTIAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #3, the ignition feed driver signals the Powertrain Control Module (PCM) to set the P0203 code.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation
P0203 PONTIAC Description
The Powertrain Control Module (PCM) controls the fuel injectors by using an ignition feed driver and ground circuit within the PCM. The driver has the ability to detect an electrical malfunction in the ignition feed or ground circuit.