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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!

(https://busconversionmagazine.com/forum/proxy.php?request=http%3A%2F%2Fimg.tapatalk.com%2Fd%2F13%2F02%2F01%2F7ahe6u7u.jpg&hash=bef89378e215d60b4ffb4efdfe176f9e48b84014)

(https://busconversionmagazine.com/forum/proxy.php?request=http%3A%2F%2Fimg.tapatalk.com%2Fd%2F13%2F02%2F01%2Fe5upytu5.jpg&hash=0df1e82a888bfdae7227fb32f902142bbe0819ae)

(https://busconversionmagazine.com/forum/proxy.php?request=http%3A%2F%2Fimg.tapatalk.com%2Fd%2F13%2F02%2F01%2F6enajuvu.jpg&hash=b5e65155ee60a3b211ec90d26703cc514ae9159c)

(https://busconversionmagazine.com/forum/proxy.php?request=http%3A%2F%2Fimg.tapatalk.com%2Fd%2F13%2F02%2F01%2Fetu3a4y5.jpg&hash=de9a03b498649394e616c42ec174f37e9a0373bc)

~ Andy