Powertrain, generic · Fuel and air metering (injector circuit)
P02F7 Cylinder 10 Injector Circuit Range/Performance
Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible
P02F7 reports an electrically implausible response of the cylinder 10 injector – not an open or short circuit (those are P0210, P0288 and P0289), but a current or voltage pattern outside the expected range. Cylinder 10 exists only on engines with ten or more cylinders; GM and Ford documents stop at cylinder 8, so the description follows CARB and the documented checks for cylinders 1–8 (current fall time, voltage feedback, regulator at its limit). The injector may be shut off, causing misfire.
Likely causes
Injector electrically aged (piezo capacitance, coil resistance)
Contact resistance in the injector 10 connector or wiring
Injector mechanically sticking (valve lift)
Injector driver stage in the engine module
Symptoms
- Check engine light on
- Rough running, misfire on cylinder 10
- Loss of power, smoke (diesel)
Repair estimate
DifficultyHardWorkshop job
Parts and labour€100–900
Time1–4 h
Typical range across vehicles; the real cost depends on what the testing finds.
Parts involved
fuel injector cylinder 10injector wiringengine control module
Related codes
References: law.cornell.edu, gsi.ext.gm.com.