940 L4-2320cc 2.3L SOHC Turbo VIN 87 B230FT (1992)
Technical Service Bulletin # 28916
Date: 950301
Engine - Idle Speed Dip When Cooling Fan Engages
SECTION
2
GROUP
28
NO.
916
DATE
March 1995
RE:
MFI LH 2.4.4 EPROM exchange for idle speed dip
when cooling fan engages.
900
M/Y 1992- B230FT
REFERENCE: TP 3204311, SECTION 2 (23, 28) MULTIPORT FUEL INJECTION (MFI) SYSTEM LH 2.4, 700/900 1989-
MFI LH 2.4.4 EPROM exchange
When the cooling fan engages, the voltage supply to the idle air control (IAC) valve momentarily dips.
If this happens in hot climate with the Air Conditioning engaged, the idle speed might dip, which might cause body vibrations.
EPROM Application Chart
WARRANTY STATEMENT: Claims may be submitted under the New Car Limited Warranty when a manufacturing defect is present using claim type:
01
Operation No.
02383-6
Labor Description
E-PROM exchange
Time Allowance
0.5 hr
Replacement of EPROM
REPLACEMENT OF EPROM
