Carista - prime a new fuel filter?
- Thread starter Stripy
- Start date
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- Tags
- carista fuel filter
afaik - NO
you cant command/run the fuel lift pump/s from Carista,
you can with VCDS or other Diag Kit (Autel for example)
you cant command/run the fuel lift pump/s from Carista,
you can with VCDS or other Diag Kit (Autel for example)
Not T6 specific, but VAG so you get the idea . . . .
.
.
this has been mentioned before . . .
but when i tested the idea it wasn't the case on my van.
so im my case, and with my van, NO THAT WONT WORK.
it looks like.
Primary pump is in the fuel tank . . . (feed unit)
supplementary pump is in engine bay next to fuel filter . .
J538 - Fuel Pump Control unit. ---> G6 PWM fuel pump
J623 - Engine control unit (controls fuel relays)
J17 - fuel pump relay in E-box ---> V393 supplementary fuel pump
J49 - Fuel pump realy2 - E-box
example in tank pump . . .
example HPFP . . . .
example v393 supplemental lift pump, (not for a T6 just to see what one looks like)
Primary pump is in the fuel tank . . . (feed unit)
supplementary pump is in engine bay next to fuel filter . .
J538 - Fuel Pump Control unit. ---> G6 PWM fuel pump
J623 - Engine control unit (controls fuel relays)
J17 - fuel pump relay in E-box ---> V393 supplementary fuel pump
J49 - Fuel pump realy2 - E-box
example in tank pump . . .
example HPFP . . . .
example v393 supplemental lift pump, (not for a T6 just to see what one looks like)
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Tank pump here:
G - fuel gauge sender
G6 - primary lift pump
edit:*******************
J538 - petrol engines only
********************************
T6b 6-pin connector, black, on fuel tank
T10c 10-pin connector, yellow, in E-box
colours:
Bl/ge = Blue/yellow
Br = Brown
*3 derv engine
*4 petrol engine
G - fuel gauge sender
G6 - primary lift pump
| J285 Control unit in dash panel insert |
edit:*******************
J538 - petrol engines only
| J538 Fuel pump control unit |
********************************
T6b 6-pin connector, black, on fuel tank
T10c 10-pin connector, yellow, in E-box
colours:
Bl/ge = Blue/yellow
Br = Brown
*3 derv engine
*4 petrol engine
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Engine bay lift pump here:
J17 Fuel pump relay, in E-box in engine compartment
J49 Electric fuel pump 2 relay, in E-box in engine compartment
J519 Onboard supply control unit
J623 Engine/motor control unit, in E-box in engine compartment
T2dp 2-pin connector, black, near fuel filter
V393 Supplementary fuel pump
D110 - main relay +12v supply
J17 Fuel pump relay, in E-box in engine compartment
J49 Electric fuel pump 2 relay, in E-box in engine compartment
J519 Onboard supply control unit
J623 Engine/motor control unit, in E-box in engine compartment
T2dp 2-pin connector, black, near fuel filter
V393 Supplementary fuel pump
D110 - main relay +12v supply
it doesn't look like the fuel pump wires goes via the seat base connection point?
www.t6forum.com
Ignition Live Under Passenger Seat - How Its Done -
Ignition Live Under Passenger Seat - How its done - This question pops up fairly often so i thought i would look at it a bit closer. . . . . If your van was factory fitted with the AUX battery under the seat, then your sorted. There is already a feed under there . . . . =] BUT what if your...
but it looks like you might be able to power the cable up at the relay location . . in the E-box
J17 pin 87 switched +ve (Relay 0ve ground switch control via Engine ECU)
J49 pin 87 switched +ve (Relay 0ve ground switch control via Engine ECU)
J17 pin 87 switched +ve (Relay 0ve ground switch control via Engine ECU)
J49 pin 87 switched +ve (Relay 0ve ground switch control via Engine ECU)
Worked for me 2nd time of trying. 1st time I was just turning the key on to off several times and it didn't start then I tried priming again but removed key each time and I'm sure I could hear the pump going on key out. Anyway it fired up on 2nd attempt. Phew!
No fuel pump prime on a T6 Diesel, (with door open or IGN on)
but there is on the Petrol TSI van. (the Pre-prime that is)
What you can hear is the Auxiliary coolant pump running - by all accounts.
you can drive the lift and secondary fuel pumps from VCDS - they have a different sound.
but there is on the Petrol TSI van. (the Pre-prime that is)
What you can hear is the Auxiliary coolant pump running - by all accounts.
you can drive the lift and secondary fuel pumps from VCDS - they have a different sound.
OBDeleven can do that, too. Of course!
Engine > Output test > Fuel pump electronics
Or
Engine > Basic settings > Initial fuel filling.
You'll definitely know when it works - very distictive sound. No harm experimenting 
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So of I turn the ignition on and off a few times it will fill the fuel filter? In this case I should be able to take off the supply to the fuel filter and diesel should flow out the pipe when the key is turned? That doesn't happen in my case. Possibly a problem with the pump in the fuel tank?
