Adjust TPS and Idle screw..

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06-12-2011, 05:49 PM

#16

leperboy

Burning Brakes

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Quote:

Originally Posted by PorKen

You may have a vacuum leak, often a loose plenum hose is the problem.

I'll second this. I would look for a vacuum leak before I looked to adjust the idle screw. Especially if the high idle is something new since the idle screw isn't likely to back out by itself.

Check your plenum rubbers, including checking to see if they are dry-rotted or cracking from oil sitting in them, check your vacuum hoses and also check your vacuum hose connectors for rotting.

Matt

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06-12-2011, 07:34 PM

#17

John Speake

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Quote:

Originally Posted by PorKen

Front of throttle body. You'll need a 7mm socket on an extension (black handle in pic). Turn CW to lower speed.

You may have a vacuum leak, often a loose plenum hose is the problem.

Ah ! US 32v different to Euro 16v..... :-(

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06-18-2023, 02:20 PM

#18

mj1pate

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Quote:

Originally Posted by John Speake

It's lurking beneath the crossbrace, about the middle - a 1/2" dia knurled adjuster with a screwdriver slot. Turn anti-clockwise to increase idle speed, IIRC

hmmm….. I’m not sure I understand. I do not see a screw driver slot on the ****. It seems (before I touch anything), that the **** has a lock nut around it that should be loosened so the **** can be turned and the **** is turned by maybe one’s fingers?