Volkswagen (A4) Golf, GTI, Jetta 1999 - 2006

P0300 / 16684 - Random/Multiple Cylinder Misfire Detected

The following Technical Bulletins reference this DTC and may apply to your vehicle:

Capacity

Engine Code

Corrective action

 

Malfunction Criteria And Threshold Values

Secondary Parameters and Enable Conditions

Monitoring Time Length

Frequency of Checks/MIL Illum.

1.8 liter

AWD AWP AWW

- Check the Spark plugs.

- Check the intake system for leaks.

- Check the fuel pressure.

- Check fuel injectors -N30-, -N31-, -N32-, -N33-, -N83-.

- Check the Ignition Coils with Power Output Stage -N70-, -N127-, -N291-, -N292-.

 

Multiple misfire

Load change within 2 revolutions, 3 - 40%

Time from engine start, 5 sec

Engine load, 13.5 - 138.75%

 

2 DCY

1.9 liter

ALH BEW

- Check compression pressure, 1.9 Liter 4-Cyl. 2V TDI Engine Mechanical, Repair Group 15

Vehicles with engine code ALH:
- Fuel injectors, checking (ALH)
Vehicles with engine code BEW:
- Check Valve for pump/injector, cylinder 1 -N240- through Valve for pump/injector, cylinder 4 -N243-

 

Rise in engine speed after fuel injection-
Calculated based on values from last two engine revolutions

Error threshold:80 % misfire over 460 crank-shaft revolutions

Engine speed-
>idle -150 rpm

Engine speed-
<idle +100 rpm

Fuel quantity-
>2.5 mg/stroke

Fuel quantity-
<15 mg/stroke

Driving speed- <6 km/h

ECT - >10 °C

Time since start-
>5 Sec.

Time since clutch status change- >1 sec.

<= 830 engine revs

2 DCY

2.0 liter

AEG AVH AZG BBW BEV

- Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-
- Check Spark plugs, test data (AEG, AVH, AZG, BBW, BEV)
- Check intake system for leaks <link>

Vehicles with engine code AEG:
- Check Ignition Coil -N152- <link>

Vehicles with engine code AVH, AZG, BBW, BEV:
- Check Ignition Coil 1 with Power Output Stage -N70-, Ignition Coil 2 with Power Output Stage -N127-, Ignition Coil 3 with Power Output Stage -N291-, Ignition Coil 4 with Power Output Stage -N292- <link>

Vehicles with engine code BEV, BBW:
- Bleed fuel supply system <link>

 

Multiple misfire

Time from engine start -Idle-150 RPM + 1 cam rev.

Engine speed -520 - 6280 RPM

Engine torque > 0

Rough road - Not detected

Shifting command (AT only) - No signal

---

2 DCY

2.8 liter

AFP

- Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84- <link>

 

Multiple misfire

Load change within 2 revs-<21 - 35%

Engine speed change-300 - 750 rpm/s

Engine speed-<governed engine rpm

Engine torque-Engine torque >0

Time after engine start- 3+1 ignitions +10 camshaft revs.

---

2 DCY

2.8 liter

BDF

- Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84- <link>

 

Multiple misfire

Load change within 2 revolutions-no limit

Engine speed change-no limit

Engine speed-520 - 6,800 rpm

Engine torque- >0

Time after engine start-idle speed - 150 rpm + 1camshaft rev.

1,000 rev

2 DCY

3.2 liter

BJS

- Check Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector -N84- <link>

 

Multiple misfire

Time after engine start -Idle speed - 150 RPM+ 1 camshaft rev.

Engine speed 6720 RPM

Engine torque > 0

IAT >-30° C

ECT > -30° C

Rough Road -Not Detected

 

2 DCY

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