Installing MPGino in 2002 Golf TDI

[dremd]

Settings edited.

Now GPH hovers around 15 GPH.
Speed reads a little lower than I remember it reading before.

[dcb]

I'm a little lost as to where exactly to get the fuel consumption signal. Might have to wait for the O-scope. Thanks, and hope you feel better.

[yetimus]

Originally Posted by dremd

Fuel pickup wired up and *working*.
I was looking at the wrong connector . . . .

On to the VSS (G22 White and Blue)


About to pull the instrument cluster

I searched through the tdiclub link you posted showing the Bentley schematics. I agree that the fuel consumption signal may be difficult to locate. I'm wondering if it might be on pin 11 shown on line 41 above. The reason I suspect this one is that I found this link (post #11) which provides the instrument cluster pinout.

Whoever posted this pinout listed pin 11 as 'vacant' which, according to sir Bentley, it isn't. But it is an unidentified signal from the ECM. I'll keep digging though the tdiclub archives as time permits, but that'd be my best guess at this point...

[yetimus]

Update: just found another possibility for fuel consumption signal. This thread (post #420) suggest fuel consumption, depending on model, is found on the green connector pin 32. Interestingly, something called "MAF #3" may be present on the blue connector pin 11 mentioned above.

[dremd]

Post referenced by Yetimus


Originally posted by MOGolf on tdiclub.com forums.

Not knowing which Passat cluster (there are 3 AHU engine versions that I have info about) the possible pin-outs are...

Blue connector:
1-Terminal 15, positive
2-Turn signal right
3-Speedometer signal out
4-Warning Lamp Trailer towing
5-Fuel gauge
6-Airbag/ground w/o airbag/vacant
7-ground (sender circuit)
8-Coolant temperature
9-ground
10-Oil Pressure
11-Speedometer signal/MAF #3/vacant
12-Alternator warning
13-backrest lock/glow plug period warning/vacant
14-rear fog
15-vacant
16-open tailgate or boot/vacant
17-Warning lamp main beam (high beams)
18-Turn signal left
19-ABS
20-Illumination
21-Driver door open/vacant
22-vacant/coolant low
23-Terminal 30, positive
24-ground
25-K-wire
26-Parking light right
27-Parking light left
28-Speedometer signal in
29-Brake fluid level
30-S-contact
31-Seat belt warning
32-Emissions warning/vacant

Green Connector
1-vacant
2-Immobilizer read coil 1
3-vacant/warning lamp for side lights/vacant
4-CAN bus signal screening
5-W-wire
6-Washer fluid
7-brake pad wear
8-External buzzer/vacant/CAN-High for Conv. system and central locking
9-External gong/vacant/CAN-Low for Conv. system and central locking
10-Fuel reserve warning/vacant
11-Vehicle stationary signal
12-AC cutoff signal
13-Hand brake
14-Traction control
15-vacant
16-vacant
17-Immobilizer read coil 2
18-vacant/Oil temp and level
19-vacant/CAN high in
20-vacant/CAN low in
21-vacant
22-vacant/bonnet switch
23-MFA switch down
24-MFA switch up
25-MFA reset
26-Ambient air temperature
27-vacant/CAN high out
28-vacant/CAN low out
29-vacant/CAN shielding
30-speedometer out/vacant/Radio-Navigation clock
31-Selector lever display/vacant/Radio-Navigation data
32-Fuel consumption/vacant/Radio-Navigaion enable

If there is a 20 pin Red connector
1-4 vacant
5 Telematic Shield ground
6-11 vacant
12 Radio-Navigation clock
13 Radio-Navigation data
14 vacant
15 Radio-Navigaion enable
16-20 vacant

The 1Z is a different beast.

[dcb]

Is it possible that the view from the ECM would be more consistent than from the gauge end? According to this it is pin 9 for fuel?

[yetimus]

[QUOTE=dcb]Is it possible that the view from the ECM would be more consistent than from the gauge end? According to this it is pin 9 for fuel?

dcb-

The link you provided applies to 97-99.5 Jetta TDIs. One would need to verify that the same ECM pinout is applicable to dremd's '02. Perhaps someone out there with a Bentley manual could confirm?

[dcb]

Yup. Do you know if your 96 passat ecu plugs look like that? And if pin 9 is what is connected to the mpguino? (and which one is the vss?)

[dremd]

My plugs are very similar to the ones posted here; but I don't think identical.

FYI I am tapped at the ECU

[dremd]

Bad News guys; I went over to my buddies with the O-Scope and his probes were broken err. They will be replaced (by his employer) unfortunately I will not have access to them for about 3~4 weeks.