Idle Hunting -- The problem continues!!

[vreference]

Originally Posted by rcaradimos

maybe the sensor just doesn't have the temp to get a reading.

A bit late but yes, sensor needs to be very hot to produce voltage; possible that your heater relay wasn't working?

[ClickClickBoom]

Originally Posted by rcaradimos

Tried to tweek air flow screw but it is awful tight so I didn't move it. I think I'm running a bit rich, it smells that way.
Thanks in advance.
Still getting to know her before I buy your Chip.
Bob

Hey,
My air screw was way tight, called Steve W. per his instructions, I sprayed a little penetrating oil in the screw well and gave it a couple very light taps to shock it loose. The brass and aluminum generate galvanic corrosion and that is the jam.

[stlrj]

Originally Posted by scottb

My 84 has had an "idle hunting" problem. Based upon "conventional wisdom," I've replaced the idle control valve, the O2 sensor, and the cylinder head temp sensor. Yet, the problem persists.

Does anyone have any ideas on what could be wrong? Help would be appreciated.

Scott

Has a search of this forum been done?

[BE911SC]

Thread is ten years old. Helpful though.

[PeterM]

Can anyone please share how to adjust the mixture on a 3.2 ?

I have a Snap-on 5-gas analyzer

[carlvs]

Does the car have CIS? If so google CIS mixture adjustment screw. It’s located on top of the air flow meter. Between the rubber boot and the fuel distributor. You w8ll also need 5o adjust the idle air screw.


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[proporsche]

fuel mix is adjusted like this on 3,2 carrera

[PeterM]

Thank you proporsche

Can you post a picture of where the mixture adjustment screw is located ?

What CO figure are you aiming at with the gas analyzer ?

[proporsche]

once you remove the plug you need 3mm allen wrench.
So,1st if you still have the plug in ..remove the afm (air flow meter)
2nd drill 2 little holes into the plug about 3mm deep so you can use needle nose pliers to remove it.(never mind those 3 punch hole that was for a different showing)
3rd to set the C/O engine should be warm and i`d would put about 1,2 without the CAT
that is all


Ivan