P02DB Code - Cylinder 8 Fuel Injector Offset Learning At Max Limit
|P02DB code possible causes
- Faulty Cylinder 8 Fuel Injector
- Cylinder 8 Fuel Injector harness is open or shorted
- Cylinder 8 Fuel Injector circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
|How do I fix the P02DB code?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 P02DB code
Labor: 1.0The cost of diagnosing the P02DB code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
|What are P02DB code possible symptoms?
- Engine Light ON (or Service Engine Soon Warning Light)
|P02DB code descriptionZero Fuel Calibration (ZFC) is an algorithm used to detect deviations in individual injector performance from nominal. In an overrun/decel fuel shut-off condition, fuel rail pressure is set to 300 bar and small injections are made from a single injector. The observed acceleration in crankshaft speed is detected and compared to the expected acceleration. If the observed acceleration deviates from the expected acceleration by more than 50%, then an additional routine is called adjusts the injection energizing time until observed acceleration matches expected. This information is then used to adjust all pilot injections on that injector to ensure correct fuel delivery. If the absolute energizing time observed for the test injection to yield the expected acceleration exceeds minimum or maximum limits, a code is set.
The Powertrain Control Module (PCM) sets the OBDII code when the observed energizing time for the test injection is 254 us or more higher than the target 430 us energizing time for the given injector.
|Need more information with the P02DB code?Need more information on how to fix the P02DB code? Get Access to Factory Service Manuals
|P02DB code information for specific makes
|Need help with a P02DB code?Get the P02db code diagnosed by a professional: Find a repair shop in your area
|P02DB code commentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P02db code? Have you replaced any parts?
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