2000 Porsche Boxster (986) F6-2.7L A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 176

Part 1

Part 2

P0271

P0271

Fuel Injector, Cylinder 4 - Above Limit

Diagnosis conditions

- Engine running

- Battery positive voltage greater than 7 V

Possible fault cause

- Fuel injector (coil) short circuit

- Short circuit to B+ in wiring

- DME control module

Affected terminals

Terminal III/27

NOTE: Short to B+ causes the fuel injector to be continually closed.

Diagnosis/Troubleshooting