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Well FWIW, I shorted the wires to the "idle" switch so the abacus always thinks its closed.

now it doesnt go rich when you crack the throttle.

also btw the 965 (later 964 911 turbo) ...

im doubting its wiring. I mean the switches work.... its just why is the system reacting that way?

im considering the mixture setting. im going more off the A/F than the pressure readings BTW.
...

Any chance your wiring is bad or mis-pinned? Kinda sounds like you're getting the WOT enrichment from the wrong part of the switch, no?
I guess anything is possible
But I was getting WOT enrichment ...

Im trying to understand what the "TPS" does.
I have always had the issue of going Full rich, just off closed throttle. The A/F would come back after a second, but this made pulling away ...

any new findings here? what Ohm is preferable for S2 DITC?

The '81 manual doesn't show an inline resistor and my 81 S2 doesn't have one either. The 0 221 122 023 coil, which is the correct coil for this car has an internal resistance of 0.7 Ohm.
The M31/03 e ...

anyone? can't find much info on it

can anyone clarify is the S2 need a resistor on the coil?
and what ohm range?

A missed cylinder causes a crazy lean reading, actually - due to all the O2 NOT burned.

We're used to thinking we're reading mixture from the WBO2 sensor, but of course we're reading the EFFECT of ...

Im wondering if it was a missfire, as in ignition/electrical or a fuel/air issue.

as when this was happening and the car was bucking, I could see the A/F bouncing way lean. But wouldn't an electr ...

Ignition modules are notorious to being temperature sensitive.
yeah, I had that happen on a past vehicle, but that one was on the engine. these are on the fender, where air should be readily cooling ...

The ignition amplifier on the front wing is always a suspect when it comes to misfire, cheap to change aswell.
hmmm, ok, I have a spare, Ill carry that with me.
Would that be something that would wo ...

Well I had the car running "ok" (never perfect; as usual) and managed to get a few long, 100+/- mi. drives in, up to the mtns.

this last time, I almost got stuck 100 miles out. that was k ...

in and on going effort to figure out where my consistent problem lies, one thing I havent checked (since I've checked/replaced almost everything else) is the decel valve. I notice after I set the car ...

If I installed one of those O2 sensor "check engine light" adapters?

like this one
https://www.ebay.com/itm/254664629579

wondering what effect it would have on the CIS system? especi ...