Low RPM when idling even when adjusted the BISS screw

[TSiRocker]

Hi,

I have a very strange behaviour on my engine. It always idle at 700rpm now. I have adjusted the BISS screw all the way up and still it idles at 700rpm. What could be the problem?

 

[ryanman]

Did you ground the plug by the battery before you adjusted the BISS?

 

[CarTrader29]

also grounding the third pin on the diagnostic connection?

Here is the link to help you poperly setup the base idle.

http://www.vfaq.com/mods/BISS-1G.html

 

[ryanman]

^^^^ that also, I knew I forgot something else.

 

[TSiRocker]

thanks all, but my battery is relocated to the rear trunk, so can I just hook it to anywhere on the car body chassis as a ground point?

Also, what happen if I ONLY ground the Timing Adjustment connector?

 

[marcmsj]

you need to ground both, not just one or the other. and yes, you can ground it anywhere you want.