Cylinder 7 Misfire Condition


Table of contents

P0307 AUDI Possible Causes

  • Faulty spark plug 7
  • Clogged or faulty fuel injector 7
  • Faulty ignition coil 7
  • Fuel injector 7 harness is open or shorted
  • Fuel injector 7 circuit poor electrical connection
  • Ignition coil 7 harness is open or shorted
  • Ignition coil 7 circuit poor electrical connection
  • Insufficient cylinder 7 compression
  • Incorrect fuel pressure
  • Intake air leak

How do I fix code P0307 AUDI?

  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

  • The P0307 code means that the cylinder 7 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 7. If the problem persists more tests needs to be done to diagnose problem, see “Possible Causes”

Cost of diagnosing the P0307 AUDI code

  The cost of diagnosing the P0307 AUDI 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.

When is the code detected

  Engine Cylinder 7 is Misfiring.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/loss of power
  • Hard start
  • Engine hesitation

P0307 AUDI Description

  When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring.

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