Engine shakes
#1
09-20-2014, 03:49 PM
Engine shakes
I have a 2004 2.0 Turbo Beetle which began shaking above roughly 65 mph a few months back. The shaking stops as soon as you take your foot off of the accelerator. It idled fine at the time. This issue began to get worse to the point of the shaking beginning at 45 mph. When we removed the coil packs to install new plugs we found that oil was dripping off of the coil packs. This prompted us to replace the valve cover gasket which didn't solve the problem. Our next step was to purchase new coil packs (not cheap). This only made the problem worse. The engine now idles rough (something it didn't do before). O'Reilly ran a diagnostic and it came back with the following codes:
p0300 (Random/Multiple Cylinder Misfire)
p0303 (Cylinder 3 misfire)
p2187 (system too lean at idle bank 1)
I noticed while doing this that 2 of the check valves had holes in the bottom of them (almost like they had become too hot and melted). The third had heat damage also. O'Reilly couldn't get my check valves so I plan on trying to find someplace online to purchase these since the nearest VW dealer is 150 miles away. I know this is a lot but I'm at my wits end. I can't figure out why it only shakes when it's above a certain speed (and only when the accelerator is pushed). Ideas?
p0300 (Random/Multiple Cylinder Misfire)
p0303 (Cylinder 3 misfire)
p2187 (system too lean at idle bank 1)
I noticed while doing this that 2 of the check valves had holes in the bottom of them (almost like they had become too hot and melted). The third had heat damage also. O'Reilly couldn't get my check valves so I plan on trying to find someplace online to purchase these since the nearest VW dealer is 150 miles away. I know this is a lot but I'm at my wits end. I can't figure out why it only shakes when it's above a certain speed (and only when the accelerator is pushed). Ideas?
#2
09-20-2014, 07:01 PM
Welcome to the forum. 
VAG Error Code: 16684
EOBD II Error Code: P0300
Fault Location:
Random/Multiple Cylinder(s) - Misfire Detected/Implausible Signal - Intermittent
Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Lack/loss of power.
Hard start.
Engine hesitation.
Wiring/Connector(s).
Air Intake System leaking.
Fuel Supply faulty.
Injector(s) faulty.
Ignition Cable(s) and/or Spark Plug(s) faulty.
Ignition coil(s) faulty.
Exhaust Gas Recirculation (EGR) Valve (N18) stuck/open.
Camshaft Position (CMP) Sensor (G40) faulty.
Low compression.
Possible Solutions:
Check/Replace all faulty Wiring/Connector(s).
Check Misfire Recognition.
Check Air Intake System.
Check Fuel Supply.
Check Injector(s) and Injector Sealing.
Check Ignition Cable(s) and Spark Plug(s).
Check Ignition Coil(s).
Check Exhaust Gas Recirculation (EGR) Valve (N18).
Check Camshaft Position (CMP) Sensor (G40).
Check cylinder compressions.
Special Notes:
This Diagnostic Trouble Code (DTC) indicates that one or multiple cylinders are misfiring, but the Electronic Control Unit (ECU) fails to identify the cylinder.
Tech Notes:
The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persist more tests needs to be done to diagnose problem.
When is the code detected?:
The control module monitors the crankshaft speed and has detected a misfire condition.
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.
VAG Error Code: 16687 EOBD II Error Code: P0303
Fault Location:
Cylinder 3 - Misfire Detected
Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Lack/loss of power.
Hard start.
Engine hesitation.
Wiring/Connector(s).
Ignition system.
Fuel injectors.
Fuel pressure.
Running out of fuel.
EVAP canister purge valve.
Evaporative emission system.
Low compression.
Base engine problems.
Engine Control Module (ECM) damaged.
Special Notes:
This feature search for engine misfire in a specific cylinder. Most of the time the cause for a misfire is a lack of combustion in a cylinder due to absence of spark, poor fuel metering, or poor compression.
Tech Notes:
The P0303 code means that the cylinder 3 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 3. If the problem persist more tests needs to be done to diagnose problem.
When is the code detected?:
Engine Cylinder 3 is misfiring.
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.
EOBD II Error Code: P0300
Fault Location:
Random/Multiple Cylinder(s) - Misfire Detected/Implausible Signal - Intermittent
Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Lack/loss of power.
Hard start.
Engine hesitation.
Wiring/Connector(s).
Air Intake System leaking.
Fuel Supply faulty.
Injector(s) faulty.
Ignition Cable(s) and/or Spark Plug(s) faulty.
Ignition coil(s) faulty.
Exhaust Gas Recirculation (EGR) Valve (N18) stuck/open.
Camshaft Position (CMP) Sensor (G40) faulty.
Low compression.
Possible Solutions:
Check/Replace all faulty Wiring/Connector(s).
Check Misfire Recognition.
Check Air Intake System.
Check Fuel Supply.
Check Injector(s) and Injector Sealing.
Check Ignition Cable(s) and Spark Plug(s).
Check Ignition Coil(s).
Check Exhaust Gas Recirculation (EGR) Valve (N18).
Check Camshaft Position (CMP) Sensor (G40).
Check cylinder compressions.
Special Notes:
This Diagnostic Trouble Code (DTC) indicates that one or multiple cylinders are misfiring, but the Electronic Control Unit (ECU) fails to identify the cylinder.
Tech Notes:
The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persist more tests needs to be done to diagnose problem.
When is the code detected?:
The control module monitors the crankshaft speed and has detected a misfire condition.
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.
VAG Error Code: 16687
Fault Location:
Cylinder 3 - Misfire Detected
Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Lack/loss of power.
Hard start.
Engine hesitation.
Wiring/Connector(s).
Ignition system.
Fuel injectors.
Fuel pressure.
Running out of fuel.
EVAP canister purge valve.
Evaporative emission system.
Low compression.
Base engine problems.
Engine Control Module (ECM) damaged.
Special Notes:
This feature search for engine misfire in a specific cylinder. Most of the time the cause for a misfire is a lack of combustion in a cylinder due to absence of spark, poor fuel metering, or poor compression.
Tech Notes:
The P0303 code means that the cylinder 3 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 3. If the problem persist more tests needs to be done to diagnose problem.
When is the code detected?:
Engine Cylinder 3 is misfiring.
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.
VAG Error Code: 18619
EOBD II Error Code: P2187
Fault Location:
System too Lean at Idle, Bank 1
Possible Cause:
Injectors leak/blocked.
Air Intake Leak (after MAF).
Exhaust Leak.
Possible Solutions:
Check Mass Air Flow Sensor (G70).
Check Injector(s).
Check Fuel Pump.
Check Evaporative Emission (EVAP) Purge Solenoid (N80).
Special Notes:
When found in the North American Region (NAR) 2.0T (BPY) check RVUTB: 01-09-03 or 2018919 for updated Crankcase Breather Valve.
If the breather valve is faulty, full engine vacuum is typically found when removing the oil cap at idle.
As taken from my https://volkswagenforum.com/forum/ge...oftware-34973/
https://volkswagenforum.com/forum/ne...gnature-34185/
EOBD II Error Code: P2187
Fault Location:
System too Lean at Idle, Bank 1
Possible Cause:
Injectors leak/blocked.
Air Intake Leak (after MAF).
Exhaust Leak.
Possible Solutions:
Check Mass Air Flow Sensor (G70).
Check Injector(s).
Check Fuel Pump.
Check Evaporative Emission (EVAP) Purge Solenoid (N80).
Special Notes:
When found in the North American Region (NAR) 2.0T (BPY) check RVUTB: 01-09-03 or 2018919 for updated Crankcase Breather Valve.
If the breather valve is faulty, full engine vacuum is typically found when removing the oil cap at idle.
As taken from my https://volkswagenforum.com/forum/ge...oftware-34973/
https://volkswagenforum.com/forum/ne...gnature-34185/
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