Site News - 7/20 New Member Feature: Fewer Ads in Classifieds & More | 7/20: Saab Convention Photos | 7/11: Saab Photo of the Year Winners | New Feature: BB Daily Digest Email
Date: Fri, 21 Mar 2003 13:20:30 GMT
From: "Fred W." <>
Subject: Re: Switching to DI

"Goran Larsson" <hohnopsamlid.invalid> wrote in message > In article <3e7983b3$>, > **-** <> wrote: > > > Any reason for this? Does the DI talk to the Fuel ECU? > > Input signals to the DI are triggers for the sparks, i.e. the DI > needs something to figure out when to fire the spark plugs. > > The DI cartridge also signals the ECU when it detects knocks (takes > the job of the old knock sensor microphone) and ionisation (i.e. it > detects that combustion has taken place). > > Early DI cars (in 1988, called DI/APC) used a control box combining > whatever was needed to drive the DI and to perform the APC functions. > The fuel ECU was the same as for pre DI cars. Correct, assuming that we are talking about a turbo engine. Otherwise what would you need and APC for?

Return to Main Index

The content on this site may not be republished without permission. Copyright © 1988-2021 - The Saab Network -
For usage guidelines, see the Mission and Purpose Page.
[Contact | Site Map | on Facebook | on Twitter | Shop Amazon via TSN | Site Donations]