TheTroyness
I changed a tire once...
- Location
- Arkansas
Yea, I know. Another misfire thread. I'M SORRY! But I've been reading and researching and working away at this for a long time with no sign of improvement.
PROBLEM:
Misfire on Cyl. 4. It used to misfire really bad (blinking CEL and engine sputtering like traction control was kicking in) mainly under heavy load, usually WOT when I punch it going on the on-ramp getting on the interstate. After installing a catch can and replacing the coils, it doesn't do it noticeably under WOT, but when I start my car, it usually causes my CEL to flash for a few seconds. Sometimes it flashes longer. One time it didn't stop flashing and I could hear my engine misfire. Sounded like one cylinder just wasn't firing. I shut off my engine and tried again and it didn't have any issues at all. Problems seem to be worse when it's cold out.
BACKGROUND:
I bought my 2006 MKV GTI a little over a year ago (used, obviously) from a used car dealer. I've had some form of check engine light since buying the car. Before I got a VAGcom, I had it scanned by the dealer a couple times and thought it was just because I was running APR turbo back exhaust almost since I bought the car. Just to make sure, though, I had them change out my coils. Because of the possibilities, and how long it took me to get a VAGcom, it's hard to say when my misfires started.
MODS:
I have APR turbo-back exhaust, APR stage II, BSH comp catch can, noise pipe delete (intake pipe was replaced with an aluminum one instead of the OEM A3 pipe), and ABDRacingwerks full CAI.
EFFORTS:
I replaced my ignition coils AFTER they had been replaced by the dealer. I swapped my cylinder 4 and cylinder 3 spark plugs. I contacted APR a few times but have never gotten a response regarding the data I sent them.
I have a set of data that I will attach (logged engine speed, intake air mass, all 4 cylinders, accel pedal pos, throttle plate angle, injection timing, boost press spec and actual, and actual rail pressure) showing some misfires. I have another set of data that I'll attach (logged engine speed, cylinder 4, rail pressures, and some other stuff) that shows misfires. In the second data set, I started logging as soon as I started my engine, let it idle for a little bit (didn't get the initial idle misfires that cause my CEL to flash like I normally do), rev'd the engine a few times, then drove around the block of my campus in first gear peaking as close to redline as I could get without fear of getting jumped on by campus cops. It's a lot of data... I checked my actual vs spec values, though, and everything seemed fine.
RESULTS:
Still misfiring on cylinder 4. Always and forever.
Below is a copy/paste of my latest code. This was an ooooold code. Had it in my car for a long time, so the count for misfires is fuggin' big. You'll know how desperate I am to get this solved when you see it...
Sunday,12,December,2010,00:25:03:35217
VCDS Version: Release 908.2
Data version: 20100326
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Address 01: Engine Labels: 06F-907-115-AXX.lbl
Control Module Part Number: 1K0 907 115 B HW: 1K0 907 115 B
Component and/or Version: 2.0l R4/4V TFSI 0040
Software Coding: 0403010A18070160
Work Shop Code: WSC 25019 444 84531
3 Faults Found:
000768 - Random/Multiple Cylinder Misfire Detected
P0300 - 008 - Implausible Signal - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10101000
Fault Priority: 0
Fault Frequency: 47
Mileage: 105755 km
Time Indication: 0
Date: 2000.00.00
Time: 15:40:47
Freeze Frame:
RPM: 1177 /min
Load: 33.7 %
Speed: 0.0 km/h
Temperature: 32.0°C
Temperature: 34.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.351 V
000772 - Cylinder 4: Misfire Detected
P0304 - 008 - Implausible Signal - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10101000
Fault Priority: 0
Fault Frequency: 47
Mileage: 105755 km
Time Indication: 0
Date: 2000.00.00
Time: 15:41:28
Freeze Frame:
RPM: 1075 /min
Load: 27.8 %
Speed: 0.0 km/h
Temperature: 40.0°C
Temperature: 34.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.224 V
000769 - Cylinder 1: Misfire Detected
P0301 - 001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 1
Mileage: 106841 km
Time Indication: 0
Date: 2000.00.00
Time: 16:03:08
Freeze Frame:
RPM: 1181 /min
Load: 45.9 %
Speed: 0.0 km/h
Temperature: 6.0°C
Temperature: 7.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.605 V
Readiness: 0000 0001
PROBLEM:
Misfire on Cyl. 4. It used to misfire really bad (blinking CEL and engine sputtering like traction control was kicking in) mainly under heavy load, usually WOT when I punch it going on the on-ramp getting on the interstate. After installing a catch can and replacing the coils, it doesn't do it noticeably under WOT, but when I start my car, it usually causes my CEL to flash for a few seconds. Sometimes it flashes longer. One time it didn't stop flashing and I could hear my engine misfire. Sounded like one cylinder just wasn't firing. I shut off my engine and tried again and it didn't have any issues at all. Problems seem to be worse when it's cold out.
BACKGROUND:
I bought my 2006 MKV GTI a little over a year ago (used, obviously) from a used car dealer. I've had some form of check engine light since buying the car. Before I got a VAGcom, I had it scanned by the dealer a couple times and thought it was just because I was running APR turbo back exhaust almost since I bought the car. Just to make sure, though, I had them change out my coils. Because of the possibilities, and how long it took me to get a VAGcom, it's hard to say when my misfires started.
MODS:
I have APR turbo-back exhaust, APR stage II, BSH comp catch can, noise pipe delete (intake pipe was replaced with an aluminum one instead of the OEM A3 pipe), and ABDRacingwerks full CAI.
EFFORTS:
I replaced my ignition coils AFTER they had been replaced by the dealer. I swapped my cylinder 4 and cylinder 3 spark plugs. I contacted APR a few times but have never gotten a response regarding the data I sent them.
I have a set of data that I will attach (logged engine speed, intake air mass, all 4 cylinders, accel pedal pos, throttle plate angle, injection timing, boost press spec and actual, and actual rail pressure) showing some misfires. I have another set of data that I'll attach (logged engine speed, cylinder 4, rail pressures, and some other stuff) that shows misfires. In the second data set, I started logging as soon as I started my engine, let it idle for a little bit (didn't get the initial idle misfires that cause my CEL to flash like I normally do), rev'd the engine a few times, then drove around the block of my campus in first gear peaking as close to redline as I could get without fear of getting jumped on by campus cops. It's a lot of data... I checked my actual vs spec values, though, and everything seemed fine.
RESULTS:
Still misfiring on cylinder 4. Always and forever.
Below is a copy/paste of my latest code. This was an ooooold code. Had it in my car for a long time, so the count for misfires is fuggin' big. You'll know how desperate I am to get this solved when you see it...
Sunday,12,December,2010,00:25:03:35217
VCDS Version: Release 908.2
Data version: 20100326
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Address 01: Engine Labels: 06F-907-115-AXX.lbl
Control Module Part Number: 1K0 907 115 B HW: 1K0 907 115 B
Component and/or Version: 2.0l R4/4V TFSI 0040
Software Coding: 0403010A18070160
Work Shop Code: WSC 25019 444 84531
3 Faults Found:
000768 - Random/Multiple Cylinder Misfire Detected
P0300 - 008 - Implausible Signal - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10101000
Fault Priority: 0
Fault Frequency: 47
Mileage: 105755 km
Time Indication: 0
Date: 2000.00.00
Time: 15:40:47
Freeze Frame:
RPM: 1177 /min
Load: 33.7 %
Speed: 0.0 km/h
Temperature: 32.0°C
Temperature: 34.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.351 V
000772 - Cylinder 4: Misfire Detected
P0304 - 008 - Implausible Signal - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10101000
Fault Priority: 0
Fault Frequency: 47
Mileage: 105755 km
Time Indication: 0
Date: 2000.00.00
Time: 15:41:28
Freeze Frame:
RPM: 1075 /min
Load: 27.8 %
Speed: 0.0 km/h
Temperature: 40.0°C
Temperature: 34.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.224 V
000769 - Cylinder 1: Misfire Detected
P0301 - 001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 1
Mileage: 106841 km
Time Indication: 0
Date: 2000.00.00
Time: 16:03:08
Freeze Frame:
RPM: 1181 /min
Load: 45.9 %
Speed: 0.0 km/h
Temperature: 6.0°C
Temperature: 7.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.605 V
Readiness: 0000 0001