Trooper (2 Door) V6-3165cc 3.2L DOHC (6VD1) (1992)
Engine Control Module: All Technical Service Bulletins
ECM - Hesitation During Warm Up
BULLETIN NUMBER
SB92-01-009
ISSUE DATE
September 24, 1992
GROUP
ENGINE
TROOPER (UX) HESITATION
AFFECTED VEHICLES
1992 Trooper (UX) models before VIN N7914295.
SERVICE INFORMATION
Some affected vehicles may experience hesitation when accelerating during warm-up. To eliminate these conditions, a new calibration ECM is available
from American Isuzu Parts Distribution Network (AIPDN).
NOTE:
There are some affected vehicles which already have the new calibration, indicated by a white tag on the ALDL harness at the connector (shown in
Figure 1).
SERVICE PROCEDURE
IMPORTANT
On vehicles before VIN 7914295, ECMs that already have the new calibration are indicated by a white tag (Figure 1) on the ALDL harness at the
connector.
If the tag is present, the ECM has already been recalibrated to new specifications for elimination of this condition, and therefore should not require
replacement. Refer to the appropriate Workshop Manual for hesitation diagnosis procedures.
Install a new, improved ECM (listed in the "Parts Information" section of this Service Bulletin) as described in the appropriate Workshop Manual.