Is QCSC DAS ideal for educators? YES

Can the QCSC DAS SYSTEM show the relationship between ECA inputs & outputs? YES

In this sample, the often misunderstood Ford EGR circuit is being observed. Channel #2 shows the EVP sensor. Note that the EVP signal rises gradually, then holds level and then drops off again. In order to get the EGR valve to open more, the ECA g rounds the 'normally open' EGR Vent solenoid and pulses the 'normally closed' EGR Control solenoid. When the EVP sensor indicates a perfect amount of EGR, the EGR Vent solenoid is grounded and the EGR Control solenoid is not grounded. Eventually the ECA determines that there is too much EGR, at that time, the ECA de-energizes both solenoids (note the signals for EGRV & EGRC go high) and as vacuum bleeds off from the EGR valve diaphragm, we can see the EVP sensor signal dropping.

QCSC
52 Ave E
Lodi, NJ 07644-1908
Ph# 973-472-0328 Fax# 973-472-5020
Ask for Dan

EMAIL to; qcscdas@aol.com or; lody@delphi.com or; danbuckley@worldnet.att.net
Please entitle email inquiries -- QCSC DAS
Please visit; QCSC at Delphi or; QCSC at AOL or; QCSC at CIS
or visit; Dan Buckley at ATT or; QCSC DAS at IDT or; QCSC at hometown

Return to top ---- Previous ---- Next

QCSC DAS Copyright 1996 -- Developed by; Daniel A. Buckley (NIASE GAM)

egreat