View single post by Bfitz241
 Posted: 01-30-2017 02:24 pm
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Joined: 02-05-2015
Location: Saint Augustine, Florida USA
Posts: 161
for those following, I hooked up my AEM air fuel gauge yesterday...still didn't drive the car, but got some idle/cold start/ no load info.
FIrst cold start: the cold start valve leans the mixture out drastically, I mean the gauge stops reading, over 22:1 afr. A rich misfire could also cause this but judging how the engine ran, it's not rich.
Idle: very well, readings between 13.9 and 14.1, a little bit of oscillation but not horrible, idle is smooth enough and right around 850 rpm.
No load acceleration to 2500rpm: engine shows a leaning trend as rpm increases. This really doesn't mean much to me as there is no load on the engine and very little throttle opening. I will give more weight to testing done with the car in gear and moving.

All of this info is really for amusement at this point...the engine has to be hot and under load for any meaningful readings....but it's fun to watch the gauge

Last edited on 01-30-2017 02:26 pm by Bfitz241