Thread Tools Display Modes
Old 07-02-10, 06:16
dubmandave's Avatar
dubmandave dubmandave is offline
Lord of the T4s
Help For Heroes
Join Date: May 2009
Location: big blue and green planet
Posts: 1,217
Question Uneven tickover

Engine when warm seems to tickover unevenly,
but rev counter needle stays constant
Starts up no probs, and goes really well but when you pull over
it seems to idle as if slightly missing

Was serviced around 1k ago!
Engine ajt 2.5tdi 88bhp 02 reg.
Reply With Quote Quick reply to this message
Sponsored Links
Old 23-06-13, 21:51
stevidub stevidub is offline
Van Rookie
Join Date: Sep 2008
Location: yorkshire
Posts: 8
party Re: Uneven tickover

hi dave dont dispair i spent weeks reserching this i have a few vw trained buddies who were scratching their heads but i ket researching until i found the answer.
there is a post on this forum by viper or is it rhino performance and it was 100% correct and sorted the problem.
if you look for the posting under uneven or lumpy tickover i think its rhino they have put on all the insrtuctions and loging code to hemmer adjust or vagcom adjust the iq settings in the pump.
yo need someone with vagcom go into adaption and log in the code (is o the sheet on the rhino post ) reduce the values the lower number reduces fueling you van keep reducing it until the save button goes unselective once down to the number where the vans runs smooth save it = job done m8
i was told by 3 garages that the pump was knackered and it wasant so i took the sheet info to them and they said they diddnt know that trick so give it a go / my t4 has 320k miles on it and is now sweet and the fuel economy has increased i now get 57+ to a tenner
Reply With Quote Quick reply to this message
Old 23-06-13, 21:54
t4Chippy's Avatar
t4Chippy t4Chippy is offline
Barmy Army to the Darkest Side
I Support MacmillanI Support CLIC SargentHelp For HeroesI Support Cancer Research UKOfficial MemberVW TransporterAdministratorModerator
Join Date: Feb 2009
Location: Taunton, Somerset
Posts: 30,969
Default Re: Uneven tickover

Chances are he sorted it, this thread is over 3 years old

Personalised tables and table accessories
Reply With Quote Quick reply to this message
Old 23-06-13, 22:09
stevidub stevidub is offline
Van Rookie
Join Date: Sep 2008
Location: yorkshire
Posts: 8
Default Re: Uneven tickover

dave look for this post it rhino diesel
the post description is Re: Vw T4 2.5 TDI AJT lumpy idle when hot.
Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the VW T4 Forum - VW T5 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Where you live
First Name
Postbit Orientation
Change the display of the avatars and members types.
Please select your insurance company (Optional)
Body & Engine Type
Tell us about your van.


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT. The time now is 00:09.