Test Benches

[Keith D. Miller]

> -----Original Message-----
> From: owner-gmecm at diy-efi.org 
> [mailto:owner-gmecm at diy-efi.org]On Behalf
> Of Gregory A. Parmer
> Sent: Saturday, September 08, 2001 12:29 AM
> To: gmecm at diy-efi.org
> Subject: Test Benches
> 
> 
> 
> A "test bench" is nothing more than a way of faking the
> ECM into believing it's in a running car when it's really
> not. With a few variable resistors (pots) you can see how
> twiddling inputs affect the ECM even in situations that'd
> be almost impossible to see in real life. Despite having
> the formula in front of me (see the FAQ or archives), my
> "clue" light didn't come on that injector dwell is *much*
> more closely related to MAP than TPS until after I
> experimented on the bench.
>

TPS is what the driver wants, MAP is what the engine needs.
 
Keith
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