EOC fuel usage ?'s
I have heard that when you start your car (cold) that is uses up to 6 times the amount of fuel that it uses in normal conditions until it warms up and goes into closed loop. If you do an EOC with a fully warmed up engine, and then start it with the clutch, does it still go through this routine? and if so how long does it take to get back into closed loop roughly? I ask because even when the car is warm and I do an EOC, whenever I pop the clutch to start, it seems to start just like I started it with the key and idles high for a while before it settles down. Maybe 30-45 seconds or so. Anyone have any info, links, ideas here. Any input would be appreciated, thanks.
I'm just trying to do a little math and see if it would be more beneficial to P&G with engine braking or EOC. with EOC I get 2-3 more seconds of glide time when doing my 60MPH-40MPH ect. P&G. But if I'm using more fuel starting it after an EOC every time then it wouldn't be worth it. I suppose I can do a little A-B-A testing but if anyone has looked into this before, that would save me the trouble;) |
Quote:
Quote:
Quote:
Quote:
Solution 2: Take idle control away from the ECU by unplugging the IAC. |
It won't go through the same length of open loop enrichment that you experience from a cold start, because the ECU uses the coolant temp to set that condition.
My car remains in open loop for three seconds after a warm clutch start. But what you described makes me think it may differ from car to car. Quote:
Quote:
|
Quote:
http://metrompg.com/posts/photos/chart-warmup-z.gif Mini-experiment: cold start fuel consumption and warm-up time I haven't repeated this in summer weather. Probably should... And of course the actual warm up time is much shorter than that, because I never idle my car to warm it up, and usually use a block heater :D |
Thanks for the input.
Quote:
Any side effects to unplugging the IAC?.. other than maybe a little trouble holding idle when really cold. |
All times are GMT -4. The time now is 08:40 PM. |
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com