[Diy_efi] RE: [Diy-efi] Traction Control System - In progress

[Lasse Langwadt Christensen]

Rodney Fulk wrote:
> 
> > Personnaly, I will not be including the main ECU in the Traction
> > Control system. I am unsure wich signals you'd modify to 'fool' the
> > ECU into reducing engine power. I will simply defeat injectors
> > directly. I may use the output of the crank sensor or something to
> > define the timing required to defeat each injector.
> Ouch! Your better off turning off the ignition system...
> Running in a lean condition can blow your engine pretty seriously.

Doesn't cutting injections stand a good chance of making the mixture so 
learn it won't even ignite and thus not be that big problem?

does the car have cat ? AFAIK cutting ignition and putting large amounts 
of unburnt fuel into a red hot cat is a very bad idea, 

> 
> Why not just tie into the VSS and send a speed to the PCM/ECM that is higher
> then the speed limitor will allow.
> This should do the same thing the way it was intended by the factory. And
> should be pretty simple...
> 
> VSS data is well known and easy to obtain. It should also be easy to emulate
> with the number of the emulators out there to allow
> hot rods to use drivetrains that were never intended for them.
> 
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-- Lasse Langwadt Christensen, 
-- Aalborg, Danmark

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