Injector Circuit Malfunction Cylinder 1
Table of contents
P0201 MERCURY Possible Causes
- Faulty fuel injector 1
- Fuel Injector 1 harness is open or shorted
- Fuel injector 1 circuit poor electrical connection
How do I fix code P0201 MERCURY?
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.
Tech Notes
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Cost of diagnosing the P0201 MERCURY code
The cost of diagnosing the P0201 MERCURY 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.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation
P0201 MERCURY Description
Engine Control Module (ECM) checks the injector circuit resistance and monitors the voltage drop during normal operation. The Diagnostic Trouble Code (DTC) will set when the ECM detects a low or high voltage drop or resistance at the injector 1.