2000alhVW
Veteran Member
A friend is having trouble with a 2005 Jetta, 2.0L automatic.
He's a pretty amateur car mechanic, so I was surprised to hear he had just gotten done replacing the timing belt. He said he had to re-do it because "last weekend, it wouldn't start, so that means the timing was wrong."
I'm just relaying what he said.
He then said, he re-did the belt, and drove it around for ~45 mins, turned it off, restarted, ran some errands, etc. It ran and drove great, everything was good. Without turning it off, he went to put it in park, got out, got back in, put it in Drive, and the car shut off, and will not restart.
That's when I get there with VCDS. I turn the key, and the car starts up, but extremely poor idle, and struggling to rev.
I scan codes and it's got everything.
Address 01: Engine Labels: 06A-906-032-BBW.lbl
Control Module Part Number: 06A 906 032 RJ
Component and/or Version: 2.0l R4/2V G 6505
Software Coding: 00003
Work Shop Code: WSC 00066
Additional Info: 3VWSA69MX5M072534 VWZ7Z0D0919086
VCID: 77FD8DF9551CD7F9FE-515E
17 Faults Found:
17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28)
P1340 - 35-00 - Incor. Correlation
17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28)
P1340 - 35-00 - Incor. Correlation
18032 - MIL Request Signal Active (Check TCM for errors too!)
P1624 - 35-00 -
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-00 -
16685 - Cylinder 1
P0301 - 35-00 - Misfire Detected
16687 - Cylinder 3
P0303 - 35-00 - Misfire Detected
16688 - Cylinder 4
P0304 - 35-00 - Misfire Detected
16586 - Injector: Cylinder 2 (N31)
P0202 - 35-10 - Circuit Malfunction - Intermittent
16585 - Injector: Cylinder 1 (N30)
P0201 - 35-10 - Circuit Malfunction - Intermittent
16588 - Injector: Cylinder 4 (N33)
P0204 - 35-10 - Circuit Malfunction - Intermittent
16587 - Injector: Cylinder 3 (N32)
P0203 - 35-10 - Circuit Malfunction - Intermittent
17833 - EVAP Purge Valve (N80)
P1425 - 35-10 - Short to Ground - Intermittent
17880 - EVAP Leak Detection Pump
P1472 - 35-10 - Short to Ground - Intermittent
17843 - Secondary Air Pump Relay (J299)
P1435 - 35-10 - Short to Ground - Intermittent
16427 - Oxygen (Lambda) Sensor B1 S3: Heating Circuit
P0043 - 35-10 - Short to Ground - Intermittent
16421 - Oxygen (Lambda) Sensor B1 S2: Heating Circuit
P0037 - 35-10 - Short to Ground - Intermittent
16486 - Mass Air Flow Sensor (G70)
P0102 - 35-10 - Signal too Low - Intermittent
Readiness: 0010 1101
Above is the full gambit of error codes. He said during the 45 minute drive, he had taken it to Advance Auto for the CEL. I'm assuming they just use their generic VW-ignorant scanner, and the only code that showed up was "catalytic converter related," which I'm going to assume means it had an O2 sensor code - probably legitimate from before.
I cleared the codes. When started, P1340 (the 'camshaft sensor not matching crank sensor' code) immediately comes back. The car also runs exactly like a car with a bad/unplugged cam sensor. We looked around the cam sensor location, unplugged & re-plugged the connector, no change. Nothing looks broken, ripped, etc.
When trying to let it run a while longer, it starts to accumulate DTCs for multiple misfires. I looked at VCDS misfire data, and cyl4 is misfiring at about 4x the other cylinders.
If the above error codes are correct, it looks to me like the ECU is partially unplugged, or a large part of the wiring loom has issues. I looked at the sensors in question: MAF, O2, CAS, crank sensor, ignition coils, injectors; and all the wiring for those sensors seems to join at the loom right above the ATF cooler, but I couldn't find anything looking fishy.
Any ideas here?
At idle, the car runs like it's out of timing, but it will rev and smooth out.
He's a pretty amateur car mechanic, so I was surprised to hear he had just gotten done replacing the timing belt. He said he had to re-do it because "last weekend, it wouldn't start, so that means the timing was wrong."
I'm just relaying what he said.
He then said, he re-did the belt, and drove it around for ~45 mins, turned it off, restarted, ran some errands, etc. It ran and drove great, everything was good. Without turning it off, he went to put it in park, got out, got back in, put it in Drive, and the car shut off, and will not restart.
That's when I get there with VCDS. I turn the key, and the car starts up, but extremely poor idle, and struggling to rev.
I scan codes and it's got everything.
Address 01: Engine Labels: 06A-906-032-BBW.lbl
Control Module Part Number: 06A 906 032 RJ
Component and/or Version: 2.0l R4/2V G 6505
Software Coding: 00003
Work Shop Code: WSC 00066
Additional Info: 3VWSA69MX5M072534 VWZ7Z0D0919086
VCID: 77FD8DF9551CD7F9FE-515E
17 Faults Found:
17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28)
P1340 - 35-00 - Incor. Correlation
17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28)
P1340 - 35-00 - Incor. Correlation
18032 - MIL Request Signal Active (Check TCM for errors too!)
P1624 - 35-00 -
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-00 -
16685 - Cylinder 1
P0301 - 35-00 - Misfire Detected
16687 - Cylinder 3
P0303 - 35-00 - Misfire Detected
16688 - Cylinder 4
P0304 - 35-00 - Misfire Detected
16586 - Injector: Cylinder 2 (N31)
P0202 - 35-10 - Circuit Malfunction - Intermittent
16585 - Injector: Cylinder 1 (N30)
P0201 - 35-10 - Circuit Malfunction - Intermittent
16588 - Injector: Cylinder 4 (N33)
P0204 - 35-10 - Circuit Malfunction - Intermittent
16587 - Injector: Cylinder 3 (N32)
P0203 - 35-10 - Circuit Malfunction - Intermittent
17833 - EVAP Purge Valve (N80)
P1425 - 35-10 - Short to Ground - Intermittent
17880 - EVAP Leak Detection Pump
P1472 - 35-10 - Short to Ground - Intermittent
17843 - Secondary Air Pump Relay (J299)
P1435 - 35-10 - Short to Ground - Intermittent
16427 - Oxygen (Lambda) Sensor B1 S3: Heating Circuit
P0043 - 35-10 - Short to Ground - Intermittent
16421 - Oxygen (Lambda) Sensor B1 S2: Heating Circuit
P0037 - 35-10 - Short to Ground - Intermittent
16486 - Mass Air Flow Sensor (G70)
P0102 - 35-10 - Signal too Low - Intermittent
Readiness: 0010 1101
Above is the full gambit of error codes. He said during the 45 minute drive, he had taken it to Advance Auto for the CEL. I'm assuming they just use their generic VW-ignorant scanner, and the only code that showed up was "catalytic converter related," which I'm going to assume means it had an O2 sensor code - probably legitimate from before.
I cleared the codes. When started, P1340 (the 'camshaft sensor not matching crank sensor' code) immediately comes back. The car also runs exactly like a car with a bad/unplugged cam sensor. We looked around the cam sensor location, unplugged & re-plugged the connector, no change. Nothing looks broken, ripped, etc.
When trying to let it run a while longer, it starts to accumulate DTCs for multiple misfires. I looked at VCDS misfire data, and cyl4 is misfiring at about 4x the other cylinders.
If the above error codes are correct, it looks to me like the ECU is partially unplugged, or a large part of the wiring loom has issues. I looked at the sensors in question: MAF, O2, CAS, crank sensor, ignition coils, injectors; and all the wiring for those sensors seems to join at the loom right above the ATF cooler, but I couldn't find anything looking fishy.
Any ideas here?
At idle, the car runs like it's out of timing, but it will rev and smooth out.
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