| Author |
Message |
randy h.
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 23, 2005 - 12:37 pm: | |
hi
need help to identify a ddec 1990 6v92 with allison htb 748 trans. ddec I. II. III. IV.
thanks randy |
James Maxwell (Jmaxwell)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 23, 2005 - 8:53 pm: | |
Most likely II. It is before intro of III. DDECI used a separate ECM (Electronic Control Module) that is up front or in a compartment away from the engine, with a harness running from it to the engine EDU (Electronic Distributor Unit). The units are combined on the DDEC II and mounted atop the engine, over the governor area of a MUI engine (top, front, center). It is simply called the ECM starting w/DDECII, and has expanded sensor capabilities, along with PWM (Pulse Width Modulation) of all ports to it. Should have 5 sealed electrical harnesses coming out the side of it. |
Sammy
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 23, 2005 - 9:10 pm: | |
Should be DDEC 2.
If you hook up a scan tool, it will identify it.
Send e-mail if you need more info or pics.
Sammy |
Chuck Newman (Chuck_newman)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 23, 2005 - 9:54 pm: | |
Randy,
After you find out what model you have, it is highly recommended you get manuals for it plus a scanner.
Both can be had reasonably on eBay and will save you many bucks over the years.
Chuck Newman
Oroville, CA |
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