Polo 1.2 twist engine faults

[John24]

Hi everyone,

My girlfriend just bought a VW Polo 1.2 twist 2004 which seems to be a lovely car. I scanned it with my Vagcom cable to see if there are any faults and there were, quite a few actually. So I cleared them just in case they were old and did another scan and all them came back. This is the output:

Chassis Type: 9N (9N - VW Polo (2002 > 2010))
Scan: 01 02 03 08 09 15 17 19 25 37 44 45 46 56 76

VIN: WVWZZZ9NZ4Y152540 Mileage: 165950km-103116miles
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Address 01: Engine Labels: 03E-906-033-AZQ.lbl
Part No: 03E 906 033 L
Component: 1.2l/4V SIMOS3 00HS4726
Coding: 00071
Shop #: WSC 00788
VCID: 29590ADED34FAA7609-5140
WVWZZZ9NZ4Y152540 VWZ7Z0C8280305

3 Faults Found:
17925 - Power Supply Relay for ECU
P1517 - 35-10 - Electrical Malfunction - Intermittent
17511 - Oxygen (Lambda) Sensor Heating; B1 S1
P1103 - 35-10 - Performance too Low - Intermittent
16685 - Cylinder 1
P0301 - 35-10 - Misfire Detected - Intermittent
Readiness: 0000 0000

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Address 08: Auto HVAC Labels: 6Q0-820-045.lbl
Part No: 6Q0 820 045
Component: Klimaanlage X0840
VCID: 6ADB35D216C9616EC0-515C

5 Faults Found:
65535 - Internal Control Module Memory Error
00-00 - -
01271 - Positioning Motor for Temperature Flap (V68)
30-10 - Open or Short to Plus - Intermittent
01271 - Positioning Motor for Temperature Flap (V68)
28-10 - Short to Plus - Intermittent
00819 - High Pressure Sensor (G65)
07-00 - Signal too Low
00819 - High Pressure Sensor (G65)
31-10 - Open or Short to Ground - Intermittent

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Address 09: Cent. Elect. Labels: 6Qx-937-049-C.lbl
Part No: 6Q1 937 049 D
Component: 0000 BN-SG. 1S34
Coding: 25774
Shop #: WSC 00788
VCID: 3C77C38A2CDD2FDE62-5140

1 Fault Found:
01598 - Drive Battery Voltage
07-10 - Signal too Low - Intermittent

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Address 15: Airbags Labels: 6Q0-909-605-VW5.lbl
Part No: 1C0 909 605 K
Component: 0L AIRBAG VW51 0P 0008
Coding: 12364
Shop #: WSC 00788
VCID: 2C57F3CADCBDBF5EF2-5140

1 Fault Found:
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent

The car seems to run fine, just has a rough start (shakes a bit) I guess that where the Cylinder missfire is coming from.

So with such codes where do you think I should start? And could there a main fault that is causing other faults?

Thank you

[alexperkins]

Cylinder one either needs a new coil pack or a spark plug change

The g65 errors are probably because the air con needs recharging

The power errors are likely because someone has taken the battery off

The oxygen sensor might be a faulty lambda probe

Clear the codes in each individual section rather than using the erase all DTC button as this often doesn't clear down properly

[John24]

Cylinder one either needs a new coil pack or a spark plug change

The g65 errors are probably because the air con needs recharging

The power errors are likely because someone has taken the battery off

The oxygen sensor might be a faulty lambda probe

Clear the codes in each individual section rather than using the erase all DTC button as this often doesn't clear down properly

You could be, right. The person who sold the car had a service invoice and it did show new spark plugs and coils were fitted.

[RUM4MO]

If you do find that the B1 S1 Lambda Sensor one returns, which I'm sure it will, just make sure that you buy either from a VAG outlet or buy on-line from someone that sell NGK branded one as that is what VAG uses. I'd suggest not buying a "wire it yourself fits all" version! This sensor is located in the manicat at the front of the car.

In case it bothers you, the flap motor errors showing in the HVAC section will be the usual annoying issues. At its worst, the temperature motor failure will leave the car interior very cold in this weather or nice and hot. Replacing that one yourself is possible if not just a bit difficult to reach, probably Google (as usual) for help! First of all either run basic settings using VCDS or demand COLD<>HOT a few times as that might clean up the feedback pot track enough for another month or so.

[John24]

Thanks for the replies guys
So I'll first clear the codes in the individual modules and scan again. I'll check the spark plugs and coil packs. And report back.

[John24]

Just like to said guys, cleared the faults for every module individually and run the engine for couple of minutes. Did the scan again and no codes popped up.

And will scan the car again next week