ENGINE SHUTS OFF AT OPERATING TEMPERATURE

1991 Buick Century

Tiny

centurybuick

May, 27, 2013 AT 1:03 PM

3.3 litre engine shuts off when warm. New ecm, ignition control module and knock sensor. No spark after shutdown. Fuel pressure good at shutdown. Injectors ohm out at 12.8 hot or cold. Occurs after cooling fan cycle(s) on-off.14.2 volts at battery. Computer ground good. Code 44 set first time today. Will not always go into closed loop. Today showed a lean condition, rapidly flashing engine light w/aldl jumped. Prior would show closed loop. Engine runs, gets hot, shuts down, restarts after 5 minutes, sometimes takes longer.

FOUND 25383 RELATED QUESTIONS

Cj Stalling When Idling

33 ANSWERS
44 IMAGES

Stalling Out

43 ANSWERS
48 IMAGES

1 Answer

Tiny

Docfixit

May, 27, 2013 AT 1:49 PM

Suspect faulty Dual Crank Sensor

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