Tweet
Hi, newbie to the forum here, am after some advice. Bought my 2010 Golf TDI second hand in Apr 15 and it was running ok (although sometimes taking 2 attempts to turn over on start up). A couple of weeks ago whilst driving home it cut out completely. When restarted there was a lot more vibration and the car would lose power whenever it went over 2000rpm. I basically had to crawl home at 20-30kph.
Tested it with my bluetooth ODB and it comes up with error code P0202 - Cylinder 2 injector Circuit malfunction. I cleared the error code and it came back straightaway with the excessive vibration still noticeable at idle.
I have checked the wiring to all cylinders from the harness and it appears to be intact. With the connector to Injector 2 disconnected there is no noticeable difference to how the car behaves at idle. I checked the resistance at the 2 pins of each injector. Injectors 1,3 & 4 show infinite resistance whereas injector 2 shows approx 120ohm resistance. I have not seen an internal diagram to these injectors and so cannot say whether either reading makes sense, apart from that there is clearly a difference between injector 2 and the others.
From these readings I am assuming that there is a fault with the electric circuit within injector 2. Is this a fair assumption to make or do I need to conduct further tests?
If this is the case do I need to replace the entire injector? Or is it possible to repair or replace just the solenoid/actuator part of the injector? Also can this be done at home? I am fairly competent with maintenance but would need to get at least a spline socket and possibly other tools to get the injector out. I have seen videos online for removing the older type of injectors but nothing regarding a Mk6. From the looks of it, it appears pretty straightforward i.e. remove connector, remove fuel lines, remove collar and take out injector but this is just from a first glance.
Any advice would be greatly appreciated.
Coops
Tested it with my bluetooth ODB and it comes up with error code P0202 - Cylinder 2 injector Circuit malfunction. I cleared the error code and it came back straightaway with the excessive vibration still noticeable at idle.
I have checked the wiring to all cylinders from the harness and it appears to be intact. With the connector to Injector 2 disconnected there is no noticeable difference to how the car behaves at idle. I checked the resistance at the 2 pins of each injector. Injectors 1,3 & 4 show infinite resistance whereas injector 2 shows approx 120ohm resistance. I have not seen an internal diagram to these injectors and so cannot say whether either reading makes sense, apart from that there is clearly a difference between injector 2 and the others.
From these readings I am assuming that there is a fault with the electric circuit within injector 2. Is this a fair assumption to make or do I need to conduct further tests?
If this is the case do I need to replace the entire injector? Or is it possible to repair or replace just the solenoid/actuator part of the injector? Also can this be done at home? I am fairly competent with maintenance but would need to get at least a spline socket and possibly other tools to get the injector out. I have seen videos online for removing the older type of injectors but nothing regarding a Mk6. From the looks of it, it appears pretty straightforward i.e. remove connector, remove fuel lines, remove collar and take out injector but this is just from a first glance.
Any advice would be greatly appreciated.
Coops
Comment