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Old 07-06-2012, 09:18 AM   #11
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Re: Monitoring Fuel Consumption/Mileage

Quote:
Originally Posted by syke
Any idea what year they started running OBD2 on the school buses? Just curious.

My bus is all mechanical so the only on board diagnostics I have is between my ears. Needless to say, a scanguage would be cool.
In cars they started in 1996. I would think it would be close with buses, in heavy trucks the call it j1208 or some thing like that not OBD2. (same thing) so you have to a scandgauge for diesel the connetion is round, just plug in and your ready

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Old 07-06-2012, 10:57 AM   #12
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Re: Monitoring Fuel Consumption/Mileage

Quote:
Originally Posted by gbstewart
Quote:
Originally Posted by syke
Any idea what year they started running OBD2 on the school buses? Just curious.

My bus is all mechanical so the only on board diagnostics I have is between my ears. Needless to say, a scanguage would be cool.
In cars they started in 1996. I would think it would be close with buses, in heavy trucks the call it j1208 or some thing like that not OBD2. (same thing) so you have to a scandgauge for diesel the connetion is round, just plug in and your ready

gbsteart
Ya I'm familiar with it in autos but had no idea they called it something else in heavy trucks. And a different shaped plug to boot. Learn something new everyday. Thanks.
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Old 07-06-2012, 11:07 AM   #13
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Re: Monitoring Fuel Consumption/Mileage

And try buying one of the newer truck computers... neighbor has one just sitting that needs a computer.. you can almost buy another tractor for what the computer costs...
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Old 07-06-2012, 12:24 PM   #14
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Re: Monitoring Fuel Consumption/Mileage

Just to add another layer of confusion--my 2005 Isuzu TD has the same computer diagnostic link as found on '96 and newer cars. Same plug and with the proper key card can be read with a standard "Snap-on" scanner. Go figure!?!
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Old 07-06-2012, 09:35 PM   #15
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Re: Monitoring Fuel Consumption/Mileage

The bus I'm driving is a 1976 Crown with a Detroit Diesel 6-71 inline. I have found that when I'm on flat ground, it is a constant 10mpg no matter how I drive it. Go over some mountains and it's 9mpg. Nothing much seems to change that. It is what it is and most diesel engines with the load we are carrying aren't going to change much. Computer monitoring is going to be a nice touch, but in the end, it's not going to do much better for the vehicle and size and weight.
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