VW T4 Forum - VW T5 Forum banner

1 - 16 of 16 Posts

·
Registered
Joined
·
73 Posts
Discussion Starter #1
Can any fellow 1.9 tdi converts help. I need the part no for the barometric sensor.
My loom ecu are from a pre 95 golf witch has this in footwell by fuses.
Also can it be linked out so ecu thinks it is there if i cant source one
Thanks
 

·
Registered
Joined
·
1,822 Posts
Can any fellow 1.9 tdi converts help. I need the part no for the barometric sensor.
My loom ecu are from a pre 95 golf witch has this in footwell by fuses.
Also can it be linked out so ecu thinks it is there if i cant source one
Thanks
Not sure how exactly the baro sensor works - i.e. what the ECU expects to see (but I could look into it). I do know however that the ECU will impose a level-1 torque limit if it is not present- not the end of the world but certainly noticeable.
 

·
Registered
Joined
·
73 Posts
Discussion Starter #3
Sorry mess you before i read this. Thanks
Would it cause engine to knock on load and stop turbo boosting ?
 

·
Registered
Joined
·
73 Posts
Discussion Starter #5
Vagcom is comming round tomorrow night. So i will let you know
Baro sensor is comming friday , brake pedal switch is coming tomorrow
Going away mondayI:
Tonight learning vagcom online :confused:
 

·
Registered
Joined
·
1,822 Posts
Vagcom is comming round tomorrow night. So i will let you know
Baro sensor is comming friday , brake pedal switch is coming tomorrow
Going away mondayI:
Tonight learning vagcom online :confused:
If you don't have a faultreader/VAGCOM/VCDS, then there is no way of knowing what is wrong and you are only wasting your time by simply 'poking-and-hoping'
 

·
Registered
Joined
·
73 Posts
Discussion Starter #7
hooked up tro vagcom tonight T:T:

3 faults found
00528 barometric pressure ( altitude ) sensor (f96)
31-00 - open or short to ground

00550 - start of injection regulation
17-00 - control difference

00741 - brake pedal monitoring
27-00 - implausible signal

brake pedal no prob - needs setting up with brake light signal

barometric sensor ordered coming fri (on back order from tps )


start of injector regulation :confused::*:*

advanced measuring values

barometric pressure reading 1024.8 mbar with no sensor
inj qty (actual) 4.2 mg/str
inj qty requested (acc pedal ) 1.2 mg/str


so from this am i to read that because there is no altitude sensor it is over fueling wich is causing the engine to knock when exelerating:confused::confused:

also start of injectors :* whats that all about
 

·
Registered
Joined
·
1,822 Posts
hooked up tro vagcom tonight T:T:

3 faults found
00528 barometric pressure ( altitude ) sensor (f96)
31-00 - open or short to ground

00550 - start of injection regulation
17-00 - control difference

00741 - brake pedal monitoring
27-00 - implausible signal

brake pedal no prob - needs setting up with brake light signal

barometric sensor ordered coming fri (on back order from tps )


start of injector regulation :confused::*:*

advanced measuring values

barometric pressure reading 1024.8 mbar with no sensor
inj qty (actual) 4.2 mg/str
inj qty requested (acc pedal ) 1.2 mg/str


so from this am i to read that because there is no altitude sensor it is over fueling wich is causing the engine to knock when exelerating:confused::confused:

also start of injectors :* whats that all about

00550 - start of injection regulation
17-00 - control difference


Timing...
 

·
Registered
Joined
·
1,822 Posts
hooked up tro vagcom tonight T:T:

3 faults found
00528 barometric pressure ( altitude ) sensor (f96)
31-00 - open or short to ground

00550 - start of injection regulation
17-00 - control difference

00741 - brake pedal monitoring
27-00 - implausible signal

brake pedal no prob - needs setting up with brake light signal

barometric sensor ordered coming fri (on back order from tps )


start of injector regulation :confused::*:*

advanced measuring values

barometric pressure reading 1024.8 mbar with no sensor
inj qty (actual) 4.2 mg/str
inj qty requested (acc pedal ) 1.2 mg/str


so from this am i to read that because there is no altitude sensor it is over fueling wich is causing the engine to knock when exelerating:confused::confused:

also start of injectors :* whats that all about
Absence of baro will only cause level 1 torque limit...and so is the least of your problems. Brake monitoring and timing are both important for smooth running.
 

·
Registered
Joined
·
1,274 Posts
Sorry for the Hijack guys but my work van has this same error code (00741 - brake pedal monitoring)
I've changed both the black & blue switches but still comes back.

Brian
 

·
Registered
Joined
·
73 Posts
Discussion Starter #13
the brake input sw (blue) has to be set up to work at the same time as the brake lights switch

i am thinking if you pull both plugs off and continuity check (buzz) wehen they both work together job done :D
 

·
Registered
Joined
·
1,822 Posts
the brake input sw (blue) has to be set up to work at the same time as the brake lights switch

i am thinking if you pull both plugs off and continuity check (buzz) wehen they both work together job done :D
Brake input is not the same thing as the switch - have a read of the threads again,,,

Nope, you are over-complicating things - again, read the conversion threads...
 

·
Registered
Joined
·
73 Posts
Discussion Starter #15
i have sorted the timing and got it spot on on vagcom graph.
i still not received baro sensor so this is only fault showing

engine ticks over sweet but when accelerating hard i get a lot of white/grey smoke on boost
could it be the lack of baro sensor causing this

also does anyone know the length of the accuator arm . could this be another cause

the turbo is boosting to just under 1 bar . is this the normal boost pressure

failing it being any of the above then i asume it is oil leaking from turbo seals:(
 
1 - 16 of 16 Posts
Top