speedy223
Veteran Member
- Joined
- Apr 8, 2015
- Location
- east texas
- TDI
- alh tdi new beetle 98, alh jetta 01, bew golf 04 all 5spds
Have a TDI Golf 5 spd 04. BEW PD.
starts instantly. runs along just fine seemingly till you get on it.
if you drive it slow and pokey you wont even notice, get up to 80 in 5th no problem. if you go to floor it you lose RPMs. the higher the gear the more noticeable it seems.
3rd gear if you accel slowly you can make it up to 3500. 4th 3200 or lower. if you floor it it pretty much loses get up and go at 3000 period no matter the gear after 2nd.
no check engine lights.
i have had them go into limp mode before and am familiar with it. this is not limp mode, no key reset required, just wont behave under heavy load.
i have vag com. i checked boost specified and actual on a few runs spot on.
i checked the MAF on block 3 handily called EGR something and it is spot on. goes up and down as requested. well over 500 into the 800's i believe but again spot on when watched on a graph.
i bought car as is with this condition,got a nice deal. used to ALH's , do have one BEW but it has always behaved itself so i have no troubleshooting experience with it per say and am not a mech by trade.
i would like to learn how to check stuff without just throwing parts at it so any troubleshooting advice is greatly appreciated.
i plan to change fuel filter even though supposedly it was just done by PO.
any other suggestions...
last but not least since fueling seems suspect is there any way to verify this or do you just have to pull lift pump to check screen and change filters 3 or 4 times till you know they are good. i guess i mean is there fuel pressure specs and a way to check a car only symptomatic under load.
thanks in advance for any advice. again, i am trying to up my knowledge of troubleshooting rather than just throw parts at it so if there is something i need to check or verify please let me know.
either way any advice is appreciated even in the throwing parts line if it just helps me narrow down on the problem.
vagcom doesnt seem to have any measures that address fueling under load. if it does i would love to learn how to check it. still a novice user of it.
updated to say that it wont even redline parked in neutral. pegs at about 4k floored.
starts instantly. runs along just fine seemingly till you get on it.
if you drive it slow and pokey you wont even notice, get up to 80 in 5th no problem. if you go to floor it you lose RPMs. the higher the gear the more noticeable it seems.
3rd gear if you accel slowly you can make it up to 3500. 4th 3200 or lower. if you floor it it pretty much loses get up and go at 3000 period no matter the gear after 2nd.
no check engine lights.
i have had them go into limp mode before and am familiar with it. this is not limp mode, no key reset required, just wont behave under heavy load.
i have vag com. i checked boost specified and actual on a few runs spot on.
i checked the MAF on block 3 handily called EGR something and it is spot on. goes up and down as requested. well over 500 into the 800's i believe but again spot on when watched on a graph.
i bought car as is with this condition,got a nice deal. used to ALH's , do have one BEW but it has always behaved itself so i have no troubleshooting experience with it per say and am not a mech by trade.
i would like to learn how to check stuff without just throwing parts at it so any troubleshooting advice is greatly appreciated.
i plan to change fuel filter even though supposedly it was just done by PO.
any other suggestions...
last but not least since fueling seems suspect is there any way to verify this or do you just have to pull lift pump to check screen and change filters 3 or 4 times till you know they are good. i guess i mean is there fuel pressure specs and a way to check a car only symptomatic under load.
thanks in advance for any advice. again, i am trying to up my knowledge of troubleshooting rather than just throw parts at it so if there is something i need to check or verify please let me know.
either way any advice is appreciated even in the throwing parts line if it just helps me narrow down on the problem.
vagcom doesnt seem to have any measures that address fueling under load. if it does i would love to learn how to check it. still a novice user of it.
updated to say that it wont even redline parked in neutral. pegs at about 4k floored.
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