Throttle valve opening gap at idle
11-15-2010, 10:59 AM
#1
Instructor
Thread Starter
Throttle valve opening gap at idle
I have been trying to fix my high idle for some time. May have tracked it to a PO adjusting the idle screw on the throttle body. Anybody know what the opening gap of the throttle plate is at idle?? It looks like it is factory set.
11-15-2010, 01:54 PM
#2
Team Owner
it is factory set ,
you will need someone with a unit already off and they may be able to get a feeler gauge into the opening to tell you how to get a ball park, as an aside you could always measure yours now and see what someone else posts
you will need someone with a unit already off and they may be able to get a feeler gauge into the opening to tell you how to get a ball park, as an aside you could always measure yours now and see what someone else posts
11-15-2010, 02:00 PM
#3
Instructor
Thread Starter
My gap was large ( when I backed off idle screw plate moved at least 2mm).I think(hope) this was the problem with my high idle. If anyone out there has a throttle body and a feeler gauge would appreciate checking how much throttle plate is open at idle
11-15-2010, 02:23 PM
#4
Rennlist Member
I think the goal is for the throttle plate to be closed as far as possible without sticking. Ideally you want all of the idle air going through the ISV.
11-15-2010, 02:31 PM
#5
Instructor
Thread Starter
Jim, thanks thats very helpful. Mine was a big gap and I have a 1100rpm idle, Need to get an idea of the factory setting on the idle as it seems impossible to change with intake in place, trying to avoid trial and error
