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 1988 Westy 50º ABA swap: https://tinyurl.com/yap5hpwt 1981 Westy 15º ABA swap: https://tinyurl.com/y9n4xob8 VAG Gas Engine Swap Group <http://tinyurl.com/khalbay> |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.