Idle adjuster.... why is it blocked off?
Posted: Wed Jun 06, 2018 9:21 pm
jondee86 wrote:It's just a rubber plug to stop people putting cigarette butts and other hard to
get out rubbish down the tube (* insert your own butt plug comment here). You
can easily get it out with your fingers and push it back in with your thumb.
(** second chance if you passed on the first comment )
Cheers... jondee86
notnilc20 wrote:So maybe i set my tps....set my timing in diag. Mode.....then set my idle with the
idle screw mentioned in the OP.....and maybe the car won't die on me? Thoughts?
jondee86 wrote:Can't think of any reason why the engine should die because you pull the wire out
I would suggest that once you have set the TPS according to the details given in my
post above, you test the TPS. There are specific resistance ranges that apply when you
test between the pins, and you need to verify that your TPS values fall within those
ranges. In particular the VTA-E2 value and the IDL-E2 value (no feeler inserted).
The code 7 CEL indicates a possible short or open circuit in the TPS or TPS wiring and
those two readings are relevant. If the TPS tests good, then you will need to check the
TPS wiring to make sure there is no problem between the TPS and the ECU.
However, before you get too far into this, a sanity check is just to see if the engine
starts and runs OK after stalling when you pull the wire. If it runs fine and does not
stall under anyother circumstances, forget about it How often are you going to be
pulling that wire out... not too often I hope.
Cheers... jondee86
jondee86 wrote: Holding the whole thing to the
light is the best way to check that the plate is not hitting the body before the arm
hits the screw.
jondee86 wrote:Remove the throttlebody from the intake manifold and point it towards a light source
as if you were trying to look down the throat of the throttlebody. Then open the butterfly
slightly. You will see a thin crescent of light appear on the edge of the butterfly. Because
of the high contrast you can easily see the increase in brightness caused by even a very
small movement of the butterfly.
So see how much light sneaks thru when the butterfly is resting on the inside of the
throttlebody and then adjust the throttle arm stop screw to hold the butterfly slightly open
which will give you a "thicker" crescent of light. The adjustment will be about right when
you can let the butterfly close on a narrow strip of paper from a magazine, and you can
draw the paper out from under the butterfly without tearing. Hope that makes sense
Cheers... jondee86
jondee86 wrote:Remove the throttlebody from the intake manifold and point it towards a light source
as if you were trying to look down the throat of the throttlebody. Then open the butterfly
slightly. You will see a thin crescent of light appear on the edge of the butterfly. Because
of the high contrast you can easily see the increase in brightness caused by even a very
small movement of the butterfly.
So see how much light sneaks thru when the butterfly is resting on the inside of the
throttlebody and then adjust the throttle arm stop screw to hold the butterfly slightly open
which will give you a "thicker" crescent of light. The adjustment will be about right when
you can let the butterfly close on a narrow strip of paper from a magazine, and you can
draw the paper out from under the butterfly without tearing. Hope that makes sense
Cheers... jondee86