" I need your email for those docs btw"

"Did you read Lyle's docs, they explain much of each components functions?"

Never got his email addy so I figured he didnt want them anymore.

But your stalling problem is the reaction of the pcm taking the inputs of all the sensors and devices and taking that information and making adjustments to the A/F mixture. its apparent that one of your sensors or part of your fuel injection is malfunctioning.

"thermostat (runs too cool)" is heading in heading in the right direction because if the thermostat is not working properly it will the pcm to run rich and stay in an open loop when the system should be in a closed loop.

Did you pull your plugs and see the color of them?

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)