I think it's caused by wires that are bonded to hard togheter and vibrations. I did loosen it up a bit so they don't work on eachother when the engine moves.
Didn't have any troubles after I did this fix. Well.. it only starts on the second attempt (no matter how long i try on the first) but I ...
Search found 8 matches
- Thu Dec 01, 2016 10:32 pm
- Forum: MK6 (9N) Polo - Years 2002-2005
- Topic: 1.2 12V engine light and bad performance
- Replies: 15
- Views: 14329
- Sun Nov 27, 2016 12:09 am
- Forum: MK6 (9N) Polo - Years 2002-2005
- Topic: 1.2 12V engine light and bad performance
- Replies: 15
- Views: 14329
Re: 1.2 12V engine light and bad performance
sorry for the late reply. Check this wiring diagram.

and a photo of my cable.


and a photo of my cable.

- Fri Sep 02, 2016 9:29 pm
- Forum: MK6 (9N) Polo - Years 2002-2005
- Topic: 1.2 12V engine light and bad performance
- Replies: 15
- Views: 14329
Re: 1.2 12V engine light and bad performance
If anyone else stumble upon this thread. The problem was the 5volt supply lead that was almost off in the engine wiring harness where it exits the heat shield of the cables down at the gearbox. Fixed that and went for a test drive now with no error codes.
- Wed Aug 31, 2016 7:55 pm
- Forum: MK6 (9N) Polo - Years 2002-2005
- Topic: 1.2 12V engine light and bad performance
- Replies: 15
- Views: 14329
Re: 1.2 12V engine light and bad performance
Ok I found the wiring diagrams for my car and it seems that the G212, G71 and the G40 share a common 5V supply line and a commong ground point. Since those 3x have an error I'm pretty sure the problem is somewhere in the supply chain and not in the sensor themself. It could ofcourse be a sensor ...
- Mon Aug 29, 2016 9:03 pm
- Forum: MK6 (9N) Polo - Years 2002-2005
- Topic: 1.2 12V engine light and bad performance
- Replies: 15
- Views: 14329
Re: 1.2 12V engine light and bad performance
Is the MAP sensore the same as the MAF sensor on these engines (MAP=instake pressure, MAF=Airflow)? The EGR valve is brand new but still throwing errors and the same goes for the camshaft sensor. This is why I'm leaning towards a eletrical error but I don't have much experience with VAG.
- Mon Aug 29, 2016 7:35 pm
- Forum: MK6 (9N) Polo - Years 2002-2005
- Topic: 1.2 12V engine light and bad performance
- Replies: 15
- Views: 14329
Re: 1.2 12V engine light and bad performance
Ok thanks for the suggestion :) I found out that it's prolly down to a electrical problem since I now keep getting back a map sensor open or short to ground error and when I do a readout with ignition on and motor off I read 850mbar. I'm not sure how accurate the map sensor of the polo but on my bmw ...
- Sun Aug 28, 2016 5:27 pm
- Forum: MK6 (9N) Polo - Years 2002-2005
- Topic: 1.2 12V engine light and bad performance
- Replies: 15
- Views: 14329
Re: 1.2 12V engine light and bad performance
Not sure how to edit post so I'll just make a new one. Today I opened here up and checked that the marks on the crank sprocket lined up with the dot at the other sprocket and then the camshafts was lined up from what I could eyeball on the other side of the engine. I didn't have locking tools so it ...
- Sun Aug 28, 2016 12:07 am
- Forum: MK6 (9N) Polo - Years 2002-2005
- Topic: 1.2 12V engine light and bad performance
- Replies: 15
- Views: 14329
1.2 12V engine light and bad performance
Hello
Like the topic states I got a engine light and bad performance on my newly bought polo 2003 1.2 12V. I'm not used to this car/engine but it also needs 5-6seconds cranking to start and to me that feels long. It also seem to hit a rev limiter at 3000rpm prolly due to limp mode. The workshop ...
Like the topic states I got a engine light and bad performance on my newly bought polo 2003 1.2 12V. I'm not used to this car/engine but it also needs 5-6seconds cranking to start and to me that feels long. It also seem to hit a rev limiter at 3000rpm prolly due to limp mode. The workshop ...