Date:         Fri, 6 Nov 2020 17:52:39 -0800
Reply-To:     Neil N <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Neil N <musomuso@GMAIL.COM>
Subject:      Re: GoWesty Engine Management system
Comments: To: Dennis Haynes <d23haynes57@hotmail.com>
In-Reply-To:  <CY4PR0801MB37312EA7A35A3484AC0CBB61A0ED0@CY4PR0801MB3731.namprd08.prod.outlook.com>
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Dennis and OlRivrRat

Sorry. I misunderstood. Using a MAF type device and TPS etc makes far
more sense.

Having access to information like idle valve duty cycle can be quite
handy. Especially if it can be logged, which I'd assume is possible
with the right software and laptop.

Neil.


On 11/6/20, Dennis Haynes <d23haynes57@hotmail.com> wrote:

> The GW EFI does not use the original airflow meter. That gets replaced with
> a really cool adapter and hot wire inline sensor often called a whistle. The
> throttle body also gets replaced and a throttle position sensor is used, not
> just a switch.
>
> The scan gauge tool can display the throttle position and also the duty
> cycle of the idle control valve.
>
> Dennis
>
>
> -----Original Message-----
> From: Neil N <musomuso@gmail.com>
> Sent: Friday, November 6, 2020 12:44 PM
> To: Dennis Haynes <d23haynes57@hotmail.com>
> Cc: vanagon@gerry.vanagon.com
> Subject: Re: GoWesty Engine Management system
>

> I find it interesting that GW was able to make an OBD2 system work with the
> older style PWM idle control valve and AFM.
>
> re: performance off idle at ~ 2000 RPM (and maybe fuel efficiency?), I'd be
> curious if using the OE WBX idle control valve and AFM on this GM type
> engine management system, are significant factors. i.e. is the Delphi ECU
> normally used in an application(s) where *all* idle air is controlled by the
> idle control valve and throttle angle, engine load etc. is reported by a
> typical TPS-MAF (or MAP) vs an AFM?

-- 
Neil n

VE7TBN

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1981 Westy 15º ABA swap: https://tinyurl.com/y9n4xob8

VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>