fastyan

hi - does anyone know how to adjust the amount of torque available at idle with vagcom? my engine produces a fair bit of vibration at idle and if i increase the throttle by say 50 rpm it all goes away. i can increase the engine idle with vagcom however it doesn't solve the issue as i need to introduce a little bit of load to the engine - i've tried using the lemmiwinks program but i can't get it to work as my cable is usb (probably likewise for v-tune).
any ideas on what i can do?
many thanks

Uwe@Ross-Tech.com

How do you expect to put load on the engine with software?

fastyan

all i need to do is increase the torque offset available at idle as effectively this is what the engine is doing when you load it

Uwe@Ross-Tech.com

is needed to maintain the commanded idle speed. How much torque that is depends on phyiscal load (both external and internal parasitic losses). If you somehow fool it into making more torque without increasing the physical load, it will speed up, overshoot the commanded idle speed, back off on the torque, etc. I would expect the result to be a fluctuating idle speed.

-Uwe-

fastyan

ok but i want to give it a go as it's the only thing suggested that will fix the rough idle - lemmiwinks ch14 will tweak what i need to tweak but i don't know if it's possible with vag

Theresias

...you should check the oxygen sensors, they often cause a rough idle - you may want to give us the current lambda adaptation values...

fastyan

is ????? to fix - but it's getting a right pain to hold my foot on the throttle when i stop and the passengers also complain about the vibration lol

Theresias

So if you know the cause why don't you fix it instead of playing games?

Bracketracer

dude....injectors take like 45 minutes or less to swap out

fastyan

could do with not spending the money at teh moment - just cost me ?400 to have the central locking sorted as a couple of 'black boxes' were starting to play up

are they that easy to get out - i was under the impression it'd be a tougher job than that