Gm Fuel Composition

Discussion and support for MoTeC's previous generation of entry level ECUs

Gm Fuel Composition

Postby rx_treme on Tue Nov 16, 2010 3:57 pm

Hey guys,
Anyone have any tricks to be able to use a GM flex fuel sensor on the new 84? if i'm not mistaken they're normally used on the Dig inputs but it seems all four are locked for wheel speeds.
Ideas?

Thanks!
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Re: Gm Fuel Composition

Postby racegate on Mon Dec 06, 2010 4:13 pm

How about something like this that converts the digital output from the flex sensor to an analog 0-5v out?
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Re: Gm Fuel Composition

Postby rx_treme on Wed Dec 08, 2010 5:24 pm

That's pretty cool but after looking at how many of the AV inputs are locked I would only be able to do Alcohol Content or Exhaust Map but not both... wow.
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Re: Gm Fuel Composition

Postby Mazi on Wed Dec 08, 2010 11:37 pm

Only SLM on CAN Bus? :shock:
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Re: Gm Fuel Composition

Postby MarkMc on Mon Feb 14, 2011 3:33 pm

Hi All,
The Digital Inputs are not locked to wheel speeds, they can be used for most of the functions the same as the M800. The SLM is the only thing "configurable" with reguards the CAN bus, you can still have LTCs, PLMs, ADL/SDL (all variants), MDD, PDM and VCS. Unfortunately no E888/816.
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