View Single Post
AndrewCologne AndrewCologne is offline
Registered User
 
AndrewCologne's Avatar
 
Join Date: Aug 2015
Location: Cologne / Germany
Posts: 84
Garage
Idling fine without oszillating.

https://vimeo.com/289919129

Perfectly at stoich around 2.45 volt +/- 0.1v of the sensor ( in case of the LC-2 at factory default 2.45v means 14.7:1)

Now ... when rapidly deacclerating from higher rpms (i.E highway) the idle drops below 700 rpm for about 1 Sec. This was also the case when using the original ECU.
As the Microswitch on the throttle housing tells the ECU when changing from idle to cruise or WOT and ...as well as the change back to idle, I could use this for a proportional enrichening by 1/2 sec when closing the throttle rapidly.

The 30% throttle switch works as expected. I recognised on a highway this 65% duty cycle state pushes the AFR up to between 12.8:1 and 13.4:1
__________________
911 SC 3.0, 1982, black, US model

Last edited by AndrewCologne; 09-14-2018 at 02:11 PM..
Old 09-14-2018, 02:07 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #42 (permalink)