4ordxr6

Ive got a 95 xr6 manual and the revs seem to hang around 1500rpm and 1000rpm on deceleration for a few seconds before dropping to normal idle not to sure if electronic sensor problem or a timing problem

weeman

Sounds like your base idle may be set a little high. There should be an idle adjustment screw on the throttle body.

__________________
ED XR6 - Mock Dev1, EL Thermos, XH intake with K&N Panel Filter, DBA Slotted Discs, Pedders Saloon Racing suspension, Whiteline adjustable swaybars.

mcccy005

Possibly ur cable is getting jammed somewhere too. Just rev it a little and watch the cable and see if it jams for a bit when the revs seem to hang.

stiddy

hey,
My car does exactly the same thing.. but it dosnt settle it just stays at 1100 to 1500pm (once it did it at 2500rpm) until i tap the throttle then it will drop down to 900rpm and stay there...
the cable isnt jammed i cant seem to find a problem.. but the problem started when i washed my car at carlovers and degreased my engine bay..
i got a feeling the high pressure water messed something up which is making it do that but i have no idea..

81foXDwagon

Cant say I know what it is 4 sure, but if you have no luck with anything you could always take it to a place with a dyno & ECU reader.

That way you can drive it on the dyno as you would when it faults, and look at all the sensor outputs to see which one is incorrect.

Only problem is this costs $$$ and may not yield any useful data.

BlueBeast

The first thing i would do is take the intake pipes off an get an old toothbush and a can of thottle body cleaner and spray it down the throttle and scrub all around because sometimes the stick, take off the base idles off and spray that out too, u would be supprised how often this works.

__________________
There is no substitute for cubic inches!!!

mcccy005

Actually now u mention that bluebeast it prolly is the best thing to do cus on my old carby car it used to do that and id give the throttle a tap - might be the butterlys not closing properly

Grant Porter

What I would do is take the throttle body off the car and clean the electrical connections to the isc motor and butterfly position monitor (dont know tech name), then take off the isc motor and spray throttle body cleaner into the isc motor and blow it out with air and do the same to the throttle body paying attention to the idle ports (to isc motor) and around the butterfly shaft. Open and close the butterfly a few times while spraying the stuff to loosen it up. Good luck

__________________
Falcon S, MPFI, red, Resprayed with colour coded bumpers, motorvator extractors, walker hi-flow cat, 2 & 1/2 exhaust system, cold air intake using hi-flow K&N pod filter (heat sheilded), stage 3 crow cam with a vernier cam timing gear. Severly ported and polished EB 4.0L head, shimmed valve springs - compression ratio (9.5:1 +). Making 145rwkw!!