What Does P02F7 Mean?
The ECM has detected that the Cylinder 10 fuel injector circuit is operating outside the expected electrical range or performance parameters. Applicable to V10 and V12 engines, the injector electrical signature for Cylinder 10 deviates from calibrated values, indicating component degradation or a circuit fault.
Common Causes
35%
Degraded Cylinder 10 fuel injector with altered coil impedance or slow mechanical response from age and thermal cycling
25%
Heat-damaged or corroded wiring connections in the Cylinder 10 injector circuit
20%
ECM injector driver circuit malfunction affecting the Cylinder 10 output
20%
Incorrect specification replacement injector in Cylinder 10 with mismatched impedance or flow rate
Diagnostic Steps
1
Step 1: Measure Cylinder 10 injector coil resistance at the connector and compare to specification and the other nine injectors.
2
Step 2: Capture the Cylinder 10 injector current waveform with an oscilloscope. Compare to adjacent cylinder waveforms on the same bank.
3
Step 3: Inspect the Cylinder 10 injector connector and wiring for heat damage, corrosion, and terminal integrity.
4
Step 4: Swap the Cylinder 10 injector with another cylinder on the same bank, clear codes, and drive through a test cycle to isolate the fault.
5
Step 5: Verify the correct injector part number and calibration data are programmed in the ECM for Cylinder 10.
Estimated Repair Cost
$200 - $750
Parts + labor, varies by vehicle and location
The ECM has detected that the Cylinder 10 fuel injector circuit is operating outside the expected electrical range or performance parameters. Applicable to V10 and V12 engines, the injector electrical signature for Cylinder 10 deviates from calibrated values, indicating component degradation or a ci...
The most common cause of P02F7 (Cylinder 10 Injector Circuit Range/Performance) is: Degraded Cylinder 10 fuel injector with altered coil impedance or slow mechanical response from age and thermal cycling
Typical repair costs for P02F7 range from $200 to $750, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Cylinder 10 injector circuit performance issues cause imprecise fueling and misfire potential on V10/V12 engines, risking catalytic converter damage and elevated emissions.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P02F7 to identify the root cause.
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Quick Info
Category
Powertrain
System
Fuel Injection System
Difficulty
Type
Generic (SAE)
Recommended Tools
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