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  1. #34
    Fuel Injected!
    Join Date
    Aug 2013
    Location
    Finland
    Age
    42
    Posts
    70
    Again im returning this idle issue... i changed 61 lbs injectors, i now have managed to lower my idle rpm but no came across a new mountain to climb... now my idle is 750-825 rpm and mostly in 40-50 map... but i canot get afr:s right...

    engine hardly starts, gets way too much fuel, gets flooded and idle afr in open loop is 11-12... but when driving under 1200 rpm im a tad lean.... and if i change vetable so that ill get little leaner open loop idle, something like 13.5-13.8 i still have a bit too rich start and a few second bogging after start, my closed loop idle will be 15-16 and driving is so lean that afr gauge wont show, car stumbles and so on...

    how can i get it idling decently without being either way too lean or too rich constantly... or atleast get it started every time...
    Last edited by rytari; 12-17-2015 at 09:59 AM. Reason: typos
    89 C1500 4.3tbi

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