The basic Jetronix K mixture control is via a pushrod connecting the flap of the airflow meter to the control slits inside the fuel distributor. Fuel delivery to the injectors varies by the position of the flap - i.e. airflow demand. All the ECU does in the KE is fine-tune that by varying secondary fuel pressure via the EHA. If the car won't run with the ECU out of the loop, something is mechanically misadjusted.
Steve
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'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7
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