First post so go easy please
First starts with p0300 code, then one by one all the cylinders appear, p0301, p0302 etc. They appear in no particular order and eventually the MIL light comes on. Can clear the MIL light and it stays out for 30 to 40 miles. Watched blocks 15 and 16 and all cylinders seem to misfire about the same. Misfires only occur at light, below 30% engine load, engine warmed up and RPM 2000-2600. Idles fine, never occurs under heavy load, or high rpm, but when engine has been working hard, and then come off the throttle to go down the other side of the hill and engine is not at idle but is being given a little gas many misfires occur. However, never any other codes. After warmed up and in Park, if revved to 2000 to 2500 will show misfires and eventually go into a limp mode with the forward O2 sensor biased up to 4 volts or so. Clear codes and goes back to normal. Fuel trims are .8 and 2.0 most of the time.
I have fixed several vacuum leaks, an exhaust leak, so both systems are now tight. New MAF, O2 sensors, fuel filter, plugs. SAI system checked, works fine. Fixed intake manifold change over flap, now activates around 4500 rpm. Passes all readiness checks. I do not hear any of the chain rattle that would seem to go with a chain problem. Oil is synthetic and has been changed regularly.
One incident about 2000 miles before this started, got p0345 code twice in about 500 miles. Both times shut off engine, reset the code, and engine ran fine afterwards. I cleaned and swapped the camshaft sensors when I got back from the road trip but have not seen either camshaft code since.
I like this van, but really want to solve this, Thanks.
Code:
Chassis Type: 70 (7D - VW Transporter/Multivan (1996 > 2004))
Scan: 01 02 03 08 15 17 18 19 22 25 35 37 56
VIN: WV2MB47063H017160 Mileage: 386530km-240178miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 022-906-032-AXK.lbl
Part No: 022 906 032 AF
Component: MOTRONIC ME7.1 G 0003
Coding: 00013
Shop #: WSC 02757
VCID: 4FF87BA4AECF60FF920-51CE
No fault code found.
Readiness: 0000 0100
-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 01P-927-733.lbl
Part No: 01P 927 733 CM
Component: AG4 Getriebe 01P 4973
Coding: 00000
Shop #: WSC 00000
VCID: 005A889823114F875BA-0962
No fault code found.
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 7D0-907-379.lbl
Part No: 7D0 907 379 E
Component: ESP 5.3 T4 FRONT V37
Coding: 06639
Shop #: WSC 01110
VCID: 333017542227241F968-5184
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: None
Part No: 7D0 907 040
Component: CLIMATRONIC 0004
Coding: 00032
Shop #: WSC 01110
VCID: 5F98ABE4FE2FD07F020-2596
No fault code found.
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 1J0-909-60x-VW3.lbl
Part No: 1J0 909 603 CK
Component: AIRBAG VW3 - V04
Coding: 17227
Shop #: WSC 02757
VCID: 74B2D44867A963274F2-4B7A
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 7D0-920-xxx-17.lbl
Part No: 7D0 920 902 T
Component: T4-KOMBIINSTR. VDO V01
Coding: 03235
Shop #: WSC 02757
VCID: 3534294C2C533A2FB8C-5160
No fault code found.
-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 6N0-909-901-19.lbl
Part No: 6N0 909 901
Component: Gateway K<->CAN 0001
Coding: 00003
Shop #: WSC 02757
VCID: 70BAD85813B15F07ABA-5160
No fault code found.
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 6X0-953-257.lbl
Part No: 6X0 953 257
Component: IMMO 0008
Coding: 00001
Shop #: WSC 00000
VCID: 7DA4F16C54E3226F30C-4B1E
WV2MB47063H017160 VWZ1Z0B2099433
No fault code found.
-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels: 7D0-959-800.lbl
Part No: 7D0 959 800 C
Component: Funksteuergerát 0001
Coding: 00001
Shop #: WSC 02757
VCID: 2D04012CC40372EFC0C-4B1E
No fault code found.
End----(Elapsed Time: 02:11, VBatt start/end: 12.4V/12.4V. VIgn 0.0V)------First starts with p0300 code, then one by one all the cylinders appear, p0301, p0302 etc. They appear in no particular order and eventually the MIL light comes on. Can clear the MIL light and it stays out for 30 to 40 miles. Watched blocks 15 and 16 and all cylinders seem to misfire about the same. Misfires only occur at light, below 30% engine load, engine warmed up and RPM 2000-2600. Idles fine, never occurs under heavy load, or high rpm, but when engine has been working hard, and then come off the throttle to go down the other side of the hill and engine is not at idle but is being given a little gas many misfires occur. However, never any other codes. After warmed up and in Park, if revved to 2000 to 2500 will show misfires and eventually go into a limp mode with the forward O2 sensor biased up to 4 volts or so. Clear codes and goes back to normal. Fuel trims are .8 and 2.0 most of the time.
I have fixed several vacuum leaks, an exhaust leak, so both systems are now tight. New MAF, O2 sensors, fuel filter, plugs. SAI system checked, works fine. Fixed intake manifold change over flap, now activates around 4500 rpm. Passes all readiness checks. I do not hear any of the chain rattle that would seem to go with a chain problem. Oil is synthetic and has been changed regularly.
One incident about 2000 miles before this started, got p0345 code twice in about 500 miles. Both times shut off engine, reset the code, and engine ran fine afterwards. I cleaned and swapped the camshaft sensors when I got back from the road trip but have not seen either camshaft code since.
I like this van, but really want to solve this, Thanks.
