Engine - Hesitation/Backfire/Stalling

89ford36

Article No. 89-25-6

^ BACKFIRE - 2.9L EFI - AFTER COLD START-UP

^ HESITATION - 2.9L EFI - DURING ACCELERATION FROM IDLE AFTER COLD START-UP

^ STALL- 2.9L EFI - DURING IDLE AFTER COLD START-UP

MERKUR: 1988-89 SCORPIO


ISSUE: A hesitation felt during throttle tip-in from a cold start, an induction backfire during accleration or stalling at idle after a cold start may be caused by the operating strategy of the EEC IV processor.

ACTION: Install a new EEC IV processor that has revised operating strategy. Refer to the appropriate model year Scorpio Shop Manual for service details.

PART NUMBER PART NAME CLASS

E9RY-12A650-HC EEC IV Processor B

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty Coverage

OPERATION DESCRIPTION TIME
892506A Install EEC IV Processor 0.8 Hr.
DEALER CODING
BASIC PART NO. CONDITION CODE
DRIVE J7
OASIS CODES: 620100, 620600, 630600, 630601, 631900