Bus Conversion Magazine Bulletin Board

Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: Acausey on January 16, 2013, 04:56:26 PM



Title: DDEC Identification
Post by: Acausey on January 16, 2013, 04:56:26 PM
Hi All,
   Is there an easy way to tell what version DDEC module I have?  My bus is a 1987 New Jersey Transit MC9.  It was repowered with a reliabilt 6v92 about 70,000 miles ago. Don't know much more than that.


Thanks!
~ Andy


Title: Re: DDEC Identification
Post by: Acausey on January 31, 2013, 04:00:51 PM
After much research, It looks like we have a DDEC I.  In reading through the archives, I saw references to a replacement eprom that would fix some of the quirks of the NJT.  I called US Coach only to find out that they are no longer available. 

So...does anyone have one of these chips or have any idea where I could find one?  I have access to an eprom burner and could make copies if i had a chip to read!

If nothing turns up, I'll probably make a run over to MCI in Dallas and at least get them to raise the max speed.   


I'd also love to hear any suggestions you might have!


Thanks,
~ Andy


Title: Re: DDEC Identification
Post by: luvrbus on January 31, 2013, 04:16:07 PM
The DDEC 1 will have 2 boxes (1 up front in the drivers area) I am sure yours is a DDEC 11 only 1 box setting on top of the governor housing The DDEC 1 was long gone by the end of 1987 it only lasted a short time the 11 was around till 1992


Title: Re: DDEC Identification
Post by: Acausey on January 31, 2013, 05:52:50 PM
I think there are 2 DDEC boxes and one ATEC box.  There is a box mounted on top of the engine and two more boxes mounted in the back luggage bay.  Here are a few pictures from the bay.  Of course this is the only bus I have ever worked on, so I could certainly be wrong!

(http://img.tapatalk.com/d/13/02/01/7ahe6u7u.jpg)

(http://img.tapatalk.com/d/13/02/01/e5upytu5.jpg)

(http://img.tapatalk.com/d/13/02/01/6enajuvu.jpg)

(http://img.tapatalk.com/d/13/02/01/etu3a4y5.jpg)

~ Andy