- Joined
- Apr 18, 2019
- Messages
- 12
- Reaction score
- 2
- Location
- Wisconsin, USA
- VCDS Serial number
- C?ID=367210
Hi All,
I've been working for weeks to troubleshoot why my 2002 VW Jetta TDI cranks but won't fire. The injection pump does not release fuel. The only code I repeatedly get is 00849 indicating a bad connection on the s terminal ignition wire circuit. I've checked the ignition switch and done everything else I've found possibly related and everything checks out. I verified fuel supply to the pump, changed filter, replace relay 109 & verified cutoff solenoid has 12 volts before and during cranking. When I watch the quantity adjuster with the injection pump cover removed it only moves about 20 degrees clockwise when key is turned on stays there while engine is cranking then closes back counterclockwise when key is turned off.
The only other troubleshooting I've done with vcds is observe all fuel or injection quantity and timing blocks while cranking and they all indicate zero flow. Can anyone confirm whether my issue is mechanical injection pump related or more likely electrical? can error code 00849 create a no-start condition by the ECU perverting the pump from releasing fuel?
The background story that might help is that the initial issue was a collapsed vacuum line which prevented the turbo from engaging and made the engine very sluggish and probably overheated the turbo section. After replacing vacuum lines d engine idled and revved up fine on the lift for a minute but after I shut it the crank and no start condition began.
I don't see an option to attach my auto scan results so any suggestions there might also help. Thanks!
I've been working for weeks to troubleshoot why my 2002 VW Jetta TDI cranks but won't fire. The injection pump does not release fuel. The only code I repeatedly get is 00849 indicating a bad connection on the s terminal ignition wire circuit. I've checked the ignition switch and done everything else I've found possibly related and everything checks out. I verified fuel supply to the pump, changed filter, replace relay 109 & verified cutoff solenoid has 12 volts before and during cranking. When I watch the quantity adjuster with the injection pump cover removed it only moves about 20 degrees clockwise when key is turned on stays there while engine is cranking then closes back counterclockwise when key is turned off.
The only other troubleshooting I've done with vcds is observe all fuel or injection quantity and timing blocks while cranking and they all indicate zero flow. Can anyone confirm whether my issue is mechanical injection pump related or more likely electrical? can error code 00849 create a no-start condition by the ECU perverting the pump from releasing fuel?
The background story that might help is that the initial issue was a collapsed vacuum line which prevented the turbo from engaging and made the engine very sluggish and probably overheated the turbo section. After replacing vacuum lines d engine idled and revved up fine on the lift for a minute but after I shut it the crank and no start condition began.
I don't see an option to attach my auto scan results so any suggestions there might also help. Thanks!