ecu320i
04-10-2007, 01:32 AM
Hi all,
My first post!..........but very technical in nature!
I have a Passat 2001 2.5TDi AKN engine with early rpm turbo lag.
I'm hoping that some kind soul will help, with my ongoing turbo boost problem.
I need someone to post their standard AKN 2.5TDi engine boost on this particular engine, via VAG-COM (this can be done by logging Group 11 (within Engine 01 .....and 08 Measuring) over the rpm range of 1200rpm to 3500rpm whilst in 3rd gear. (apologies Mod.....please feel free to repost this to appopriate VAG-COM questions area if necessary?)
My problem stems from lack of boost in this AKN engine until 2100rpm........see my attachment "AKN mbar Group11 VAG_COM.txt"..... maybe this is normal??..... but, from VW tech data, this V6TDi engine should produce 310Nm from 1500rpm to 3500rpm and my engine only "kicks me in the butt" from 2100rpm....compared with a VW 1900 PD engine whose torque is listed as 310Nm at 2000rpm and to me, feels twice as "poky" as my V6TDi
Please note that I've logged Group 11 via VAG-COM and this lag is evident from my own group 11 logging.........I've removed/checked the turbo variable vane mechanism for the usual sticky/jamming problem, also checked/replaced the turbo N75 solenoid, also removed and cleaned/checked the EGR exhaust turbo valve + associated EGR vacuum valve........and even went to the extremes of blocking this passage via a homemade metal plate.....just in case this EGR was partially leaking boost directly into the exhaust, .....all to no avail!.......I've massive lag until 2100rpm
Perhaps, I've got my expectations wrong with this AKN V6TDi?
In the meantime, I've ordered a MAF ......mine's the more expensive Hitachi MAF by the way!.....it should be here by this weekend..........I'll certainly post my logged VAG-COM findings after fitting this new (expensive!) MAF, but would really appreciate anyones VAG-COM readings from a similiar 2.5TDi AKN and/or their input/diagnostics on my issue.
many thanks in advance,
John (Ecu320i)
My first post!..........but very technical in nature!
I have a Passat 2001 2.5TDi AKN engine with early rpm turbo lag.
I'm hoping that some kind soul will help, with my ongoing turbo boost problem.
I need someone to post their standard AKN 2.5TDi engine boost on this particular engine, via VAG-COM (this can be done by logging Group 11 (within Engine 01 .....and 08 Measuring) over the rpm range of 1200rpm to 3500rpm whilst in 3rd gear. (apologies Mod.....please feel free to repost this to appopriate VAG-COM questions area if necessary?)
My problem stems from lack of boost in this AKN engine until 2100rpm........see my attachment "AKN mbar Group11 VAG_COM.txt"..... maybe this is normal??..... but, from VW tech data, this V6TDi engine should produce 310Nm from 1500rpm to 3500rpm and my engine only "kicks me in the butt" from 2100rpm....compared with a VW 1900 PD engine whose torque is listed as 310Nm at 2000rpm and to me, feels twice as "poky" as my V6TDi
Please note that I've logged Group 11 via VAG-COM and this lag is evident from my own group 11 logging.........I've removed/checked the turbo variable vane mechanism for the usual sticky/jamming problem, also checked/replaced the turbo N75 solenoid, also removed and cleaned/checked the EGR exhaust turbo valve + associated EGR vacuum valve........and even went to the extremes of blocking this passage via a homemade metal plate.....just in case this EGR was partially leaking boost directly into the exhaust, .....all to no avail!.......I've massive lag until 2100rpm
Perhaps, I've got my expectations wrong with this AKN V6TDi?
In the meantime, I've ordered a MAF ......mine's the more expensive Hitachi MAF by the way!.....it should be here by this weekend..........I'll certainly post my logged VAG-COM findings after fitting this new (expensive!) MAF, but would really appreciate anyones VAG-COM readings from a similiar 2.5TDi AKN and/or their input/diagnostics on my issue.
many thanks in advance,
John (Ecu320i)