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Old 02-02-2019
giderich's Avatar
giderich giderich is online now
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Join Date: Jan 2008
Location: Rolla
Posts: 3,120
Default DDec I Drawing 1333566 6-23-87

A copy of the Drawing 1333566 was made at our local STAPLES store and mailed to KC about 3 years ago shortly after a phone conversation with KC.

Most likely that very copy of DWG 1333566, still exists in the BLUE BOX of PASTURE PRIME now owned by Alan Fink & Sally Carlson-Fink of Waupun, WI.

The original copy of DWG 1333566 went with our former 88 WB, now owned by Matt Rivard of Gladstone, Missouri.

Unfortunately, I never sent a copy to Mr. Finn for scanning.



Originally Posted by giderich View Post
KC, Barry, Randy & all; my 88WB 8V92 #76744, does NOT have the "cigar module" TECL (Transmission Electronic Communications Link) or whatever it's called.

KC, the good NEWS is I located my 'hardcopy' MASTER WIRING CHASSIS DIAGRAM, DDEC 1, 8V92!!!! Drawing by BLUE BIRD BODY CO. released 6-23-87; DRAWING 1333566.

It appears the ECM used in the DDEC I used Motorola components and some OTS (Off The Shelf) hardware used in late 80s GM vehicles.
Dick & Patsy Gideon
1999 43 LXI Single Slide Body # F124510
2005 JEEP Liberty Limited CRD (diesel Toad)
SOLD 89 FC in 2012; SOLD 88 WB in 2016
Rolla, MO 65401
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Old 07-20-2019
irstaxhelp irstaxhelp is offline
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Join Date: May 2018
Location: julian
Posts: 170
Default DDEC One Schematic

DDEC I controls the timing and amount of fuel injected into each cylinder. The system also monitors several engine functions using various sensors that send electrical signals to the main Electronic Control Module (ECM). The ECM uses this information to send a command pulse to the Electronic Distributor Unit (EDU). The EDU functions as the high current switching unit for actuation of the Electronic Unit Injector (EUI) solenoids. The ECM also has the ability to limit or shut down the engine completely (depending on option selection) in the case of damaging engine conditions, such as low oil pressure, low coolant level, or high oil temperature.
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john Leslie
Julian, CA
Owner of a 1988 Wanderlodge 40WB
1982 Cadillac Eldorado
2005 Tacoma 4x4 Crew Cab
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