1z Ahu TDI flat spot
Moderators: User administrators, Moderators
-
KINGPRAWN
- Registered user
- Posts: 888
- Joined: 29 Jul 2010, 15:38
- 80-90 Mem No: 9516
- Location: penzance cornwall
1z Ahu TDI flat spot
My TDI conversion has a very obvious flat spot at 2600 rpm when under load ... Recently fitted a new ECU from SYNCROANDY as my original one was too old to connect to my SCANGAUGE ... Happens with both ecus ?? Any ideas guys ???? Runs perfectly, just when on a hill building power ( 3rd gear) As soon as it hits 2600 it feels like a limiter kicks in
in too deep to quit now....
-
lloydy
- Registered user
- Posts: 8015
- Joined: 24 Nov 2009, 17:54
- 80-90 Mem No: 5262
- Location: cheam surrey
Re: 1z Ahu TDI flat spot
Does it do the same without the tuning box?
Time is a drug. Too much of it kills you
-
KINGPRAWN
- Registered user
- Posts: 888
- Joined: 29 Jul 2010, 15:38
- 80-90 Mem No: 9516
- Location: penzance cornwall
Re: 1z Ahu TDI flat spot
Better with .... Just !lloydy wrote:Does it do the same without the tuning box?
in too deep to quit now....
-
lloydy
- Registered user
- Posts: 8015
- Joined: 24 Nov 2009, 17:54
- 80-90 Mem No: 5262
- Location: cheam surrey
Re: 1z Ahu TDI flat spot
Do you have a code reader? Might be going into limp mode.
Time is a drug. Too much of it kills you
-
KINGPRAWN
- Registered user
- Posts: 888
- Joined: 29 Jul 2010, 15:38
- 80-90 Mem No: 9516
- Location: penzance cornwall
Re: 1z Ahu TDI flat spot
No I don't ... Limp sounds a bit severe ... It just feels like a govner ... Just gently holding it back .lloydy wrote:Do you have a code reader? Might be going into limp mode.
in too deep to quit now....
-
jed the spread
- Trader
- Posts: 9020
- Joined: 09 Oct 2005, 17:31
- 80-90 Mem No: 1967
- Location: Sutton in'it Syncronaut: 123
- Contact:
Re: 1z Ahu TDI flat spot
Has it been chipped by any chance?
Jed
Jed
-
keith
- Registered user
- Posts: 2507
- Joined: 04 Jun 2007, 12:15
- 80-90 Mem No: 5169
- Location: stoke on trent
Re: 1z Ahu TDI flat spot
Limp mode....
Feels good and then it feels like youve taken your foot off the gas.
Check your vacuum pipes for leaks
Feels good and then it feels like youve taken your foot off the gas.
Check your vacuum pipes for leaks
1989 Westfalia Joker TDi
Discovery 5
Couple of motor bikes
Discovery 5
Couple of motor bikes
-
KINGPRAWN
- Registered user
- Posts: 888
- Joined: 29 Jul 2010, 15:38
- 80-90 Mem No: 9516
- Location: penzance cornwall
Re: 1z Ahu TDI flat spot
No chips .....jed the spread wrote:Has it been chipped by any chance?
Jed
in too deep to quit now....
-
KINGPRAWN
- Registered user
- Posts: 888
- Joined: 29 Jul 2010, 15:38
- 80-90 Mem No: 9516
- Location: penzance cornwall
Re: 1z Ahu TDI flat spot
Thanks for that .... Best I get checking !!!keith wrote:Limp mode....
Feels good and then it feels like youve taken your foot off the gas.
Check your vacuum pipes for leaks
in too deep to quit now....
Re: 1z Ahu TDI flat spot
What turbo you using on your conversion
-
Timburrows
- Registered user
- Posts: 305
- Joined: 05 Jun 2014, 12:49
- 80-90 Mem No: 14187
- Location: Shipton Under Wychwood
Re: 1z Ahu TDI flat spot
Air mass meter can cause flat spots and no fault code,a landrover friend cleaned his with brake cleaner which helped but not fixed his problem 
-
KINGPRAWN
- Registered user
- Posts: 888
- Joined: 29 Jul 2010, 15:38
- 80-90 Mem No: 9516
- Location: penzance cornwall
Re: 1z Ahu TDI flat spot
Timburrows wrote:Air mass meter can cause flat spots and no fault code,a landrover friend cleaned his with brake cleaner which helped but not fixed his problem
in too deep to quit now....
-
KINGPRAWN
- Registered user
- Posts: 888
- Joined: 29 Jul 2010, 15:38
- 80-90 Mem No: 9516
- Location: penzance cornwall
Re: 1z Ahu TDI flat spot
Whatever is fitted to a std mk3 '96 golf ??Daztwigg wrote:What turbo you using on your conversion
in too deep to quit now....
Re: 1z Ahu TDI flat spot
you need to get yourself a copy of vagcom to diagnose electronic tdi faults really anything else is just guessing
-
KINGPRAWN
- Registered user
- Posts: 888
- Joined: 29 Jul 2010, 15:38
- 80-90 Mem No: 9516
- Location: penzance cornwall
Re: 1z Ahu TDI flat spot
Sorted .... Braided pipe from n75 to turbo valve was all degraded and soggy ..... Guess at high vac it collapsed??? Replaced with fuel hose and all seems to be well .... 
in too deep to quit now....