need a pic of the coolant sensor connection wiring

[rfelker]

I installed a new connector but want to make sure i installed the wires correct. Because finally recieved my vag-com back and seeing some issues that I didnt see before when scanning car. And last thing replaced that was wiring was the coolant sensor connector. If I clear the codes I posted below they come back after driving 30miles. No issues with anything but have the codes coming back. Here are my codes-

Address 17: Instruments Labels: 8E0-920-9xx-8EC.lbl
Part No SW: 8E0 920 951 G HW: 8E0 920 951 G
Component: KOMBI+WFS 4 H12 0110
Revision: 0110 Serial number: 00000000000000
Coding: 0022261
Shop #: WSC 00999 444 64523
VCID: 2E050A9C7C08F2CBF0F-5184

1 Fault Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent

-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 8E0-920-9xx-8EC.lbl
Part No SW: 8E0 920 951 G HW: 8E0 920 951 G
Component: KOMBI+WFS 4 H12 0110
Revision: 0110 Serial number: 00000000000000
Coding: 0022261
Shop #: WSC 00999 444 64523
VCID: 2E050A9C7C08F2CBF0F-5184

1 Fault Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent

[MugelloB7RS4]

Your codes don't have anything to do with a coolant sensor so that repair is likely fine.

Those codes are found in the immobilizer and in the instrument network.

Do these cause any issues? or just codes that pop up? Does the immobilizer or cluster/dash give you any issues?

[rfelker]

No issues but cannot remember those codes popping up. I did just upgrade my vag software maybe its bug?

[mc_hotmail]

Your codes don't have anything to do with a coolant sensor

A disconnected or bad coolant sensor logs code in engine block like this one I had (-40.0°C):

Address 01: Engine Labels: 06F-907-115-AXX.lbl
Control Module Part Number: 8E0 910 115 P HW: 8E0 907 115 D
Component and/or Version: 2.0l R4/4V TFSI 0020
...
012417 - Engine Temperature too Low
P3081 - 008 - - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10101000
Fault Priority: 0
Fault Frequency: 2
Reset counter: 255
Mileage: 203652 km
Time Indication: 0

Freeze Frame:
RPM: 2316 /min
Load: 66.2 %
Speed: 35.0 km/h
Temperature: -40.0°C
Temperature: 35.0°C
Absolute Pres.: 980.0 mbar
Voltage: 13.589 V

[rfelker]

yes I have seen the code before but if I wired the connector backward wonder what would happen. I was a ass and removed the old connector before installing the new connector. Worried I put the wires wrong way.

[mc_hotmail]

@rfelker Where did you buy that connector? See my earlier thread: https://www.audizine.com/forum/showt...1#post14232181

[rfelker]

MC got it from ecs
https://www.ecstuning.com/b-genuine-...ach/4d0971992/

[FatMongo]

I have my harness hanging on the wall as Im rebuilding my engine. If you post a picture of what the sensor connector looks like, I will post a picture of how it looks on my harness.

[rfelker]

@fatmongo I will have to wait till I get home. thanks

[mc_hotmail]

@rfelker Thanks for the ECS link. Here is the wiring diagram for B7 BWT engine "G62 - Coolant temperature sender"

[rfelker]

thanks for the diagram wonder how different the engine codes are mines BPG.

[mc_hotmail]

See if the wire colors match yours. Although I would think temp sensors has no polarity (e.g. simple resister).

[rfelker]

update-removed the connector wiring was correct but connection 2 wasnt seated in the connector all the way. So removed it and reseated. had to unbolt the harness and ground to pull it around the back of engine up on the other side to get more room. Cleared codes and drove 75 miles for work. no issues and vag showing clean bill of health. But I also cleaned all the relays in the ecm box so that also might of fixed it.