Checked ecu,nothing wrong,in the sensors!

cleaned throttle bodies,

reset the butterflies as per manual,

still when start from cold revs it's nuts off,for fisrt 20-30 seconds then drops to about 1600-1700rpm,then slowly drops to a pretty stable 700-800rpm when warm!!!!!

P.S. when i first got the car about 6-8months ago the engine idled at 800rpm then occasionally shoots up to about 1300-1400rpm

it seemed to do this if you was driving steady!!!race it a bit in gears and it would settle again to normal tickover!!! but it doesn't do that anymore and i never touch anything!!!!!!!!!!!!!

anybody any ideas running out of them myself!!!

----cheers---

--neil--

 

[This message has been edited by neil (edited 10-07-2002).]

 

[This message has been edited by neil (edited 11-07-2002).]

Have you tried cleaning out the idle control valve (can't remember what the manual calls it but it's up near the balance bar).

Had this on one of my old cars and it was just gunked up and used to stick.

Take it off and clean it up with carb cleaner then put a little WD40 in it.

 

Worth a go anyway

The manual will call that the FICD, good detail is at www.z-car.net

Try switching the a/c on and see if that changes the tickover.

 

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Z32 technical article index

Turning the aircon on should affect it anyway as it uses a different valve

 

Rear passenger side of the engine, running round the corner of the plenum, is a rubber hose about 1" in diameter. Pull this off the idle valve (mounted on the back of the plenum) and squirt in plenty of carb cleaner - this should free the valve of the crud that builds up. Also, disconnect the battery for 30 minutes to reset the ecu and push it back into self learn mode.

 

HTH,

 

CheerZ,

 

Andy

hi,

cheers, get to it this weekend,ok

thanx!!!

i'll let you know if it works

----cheers---

--neil--