What does lean condition at idle tell you?
What does lean condition at idle tell you?
When those codes set, there was also some “freeze frame” data that went with one of them. Now, maybe the tool being used won’t show it to you, depending on the quality of the tool. But that FF data is helpful. A lean condition at idle only, and not higher RPMs is a possible indication of a vacuum leak.
What should I do if my Ford Mustang Idles rough?
When warm only it idles rough, drives / performs normally, just a very rough idle. Replaced fuel filter, fuel pumps, coils, plugs, cleaned injectors (by hand, individually), IAC valve, problem persists. All parts were Ford parts.
Why does my Ford Expedition have a rough idle?
Replaced idle air intake valve but Expedition is still running rough (low idle). It is running better but still sounds like it’s sputtering and/or low idle. When I’m in a park position the RPM gauge revs a little making the engine shake.
Do you need a new lower intake manifold?
Often, a new set of upper seals plus the reflash will “hide” the IMRC shaft seal leakage. But eventually the lower manifold gets do worn out that the reflash won’t hide it and you’ll need a new lower intake manifold.
Why does idle RPM drop from Park to in gear?
A large drop from Unloaded to In-gear idle setting can otherwise usually be attributed to either a vacuum leak or a convertor that’s to ‘tight’ for the engine set-up I agree with John. I also believe the initial 22° timing is too much, more like 12°. Tune carb with a vacuum gauge at a lower curb idle.
When does idle come back to normal on a Harley Davidson?
Just seems to happen when I’ve been running at a fairly wide open throttle maintaining higher speeds for a while (fwy) or longer stints (catching all green lights) on the streets at a speed of about 45 or more. It always seems to come back to a normal idle after getting back into first gear when stopped, or when I start going again in 1st.
Why does my ECM say idle all the time?
This allows the ECM to remember all the “idle”, throttle position and store the DTC status. There was also a download update if memory serves for some of the 2007 or 2008 models regarding an idle issue, so check with your H-D dealer for Service Bulletin regarding this.
How does idle speed work on a Camaro?
Idle speed screw is 1-2 turns in from when it touches the stop. Air fuel mixture screws are 1-1/4 turn out from seated. Transfer slot has the proper ~0.020 little square exposed. So timing looks pretty good (as good as I can get it), but I still have a huge rpm drop from 1,000rpm in park to 600rpm in gear.
