16v Idle Issue... High Rev... Slow Rev Down...

[Metallix]

ABF doesn't have a MAF, it has a MAP sensor in the ECU which monitors the manifold pressure via a long vacuum hose between ECU & intake manifold.

You can adjust the throttle body via a small hex screw near the idle switch, which faces the bulkhead.

[ttelracs]

I've had ongoing issues with this too.
So far I've removed and cleaned the throttle body, changed the vacuum hoses including the one to the ECU but haven't yet seen a small screw to adjust facing the bulkhead on my ABF.  Is it on the throttle body itself or the inlet manifold ?

Thanks

[Metallix]

On the throttle body

Borrowing this pic from EssThree


It goes in the slot shown on the microswitch bracket shown above.   
So in the vehicle this is below the idle switch.
The screw tightens the throttle stop in position & the adjustment is done by loosening this little screw, moving the stop and then re-tghtening it.

[ttelracs]

Yep, I'm familiar with this one as it clicks once the throttle is pushed, taking up the slack in the accelerator cable before the throttle plate opens properly.  I've never adjusted it though, so maybe I should have a fiddle....  Thanks.

[John50]

Ive got the same! revs dont drop when changing gear esp when hot and idle goes between 800 and about 1500 rpm, oh come on Im 50! Im way past revving at the lights!