idle issue

hey everyone i have a 2.9 v6 with over 400,000k on it, i just finished my manual swap and a one wire alternator upgrade ever since then i cant get it to idle properly with the map sensor plugged in it just makes it rev out and when its unpluged it just dumps fuel and idles fine i think it may...

this is a thread I already started , the truck has a rough idle for the first minute or so of running and shifts hard I can't figure this out. https://www.therangerstation.com/forums/index.php?threads/rought-idle-for-the-first-few-seconds-after-starting-goes-away-after-a-minute-or-so.211080/

I have a slightly modified 1992 4.0, bigger throttle body, injectors and MAF housing. I had the original setup working before it came out and went into the Bronco 2, so i used all my original parts. ECT sensor reads in range, as does TPS. Out of the 3 MAF's i have, my 5.0 MAF responds best to...

Hello! I am having an issue where my truck begins to idle surge (jump back and forth between about 4-800 RPM) after warming up for a while. This used to happen all the time, I replaced the MAP sensor which seemed to fix it for about 2 weeks, now it still happens but it's pretty rare. Whenever...

I got an 85 bronco ii that I am fixing up as a project car, got the car running now it's adjusting the high idle, it probably idles around 2k at the moment when it should be 800-900 is what the hood label says. being new to carbed engines this looks like a lot to me, anyways I was on step num...

Was curious as I am pretty new to doing anything with carbs, but I was curious as my idle speed is set pretty high, at least around 2k revs. I was wondering if I can get a simple procedure explained to me to adjust it, with possibly any pictures that would be appreciated.

Hi Everyone! So glad to find this site. Recently purchased a 1988 Ranger with 84k original miles on it. A problem which has gotten worse in the last few weeks is the idling. When I am driving and come to a stop, it just wont stay idling. But it drives fine. I ordered an MAP sensor...

Hi guys 123000km 4.0 4x4 automatic At idle, my 4.0 sohc will fluctuate RPMs. idles fine, drops suddenly by a few hundred rpm then bounces right back to normal for a few second (up to 10 seconds between jolts) additionally, at highway speeds, the truck will buck under very specific...

Hello, This is my first post and am really looking to get some help I apologize if this isn't the right place. I have been having an issue getting my 88 Bronco ii 5 Speed Manual to idle where it is supposed to. What happens is that when the engine is cold started the engine RPM will sit at...

At the Schrader valve on the injector rail: KOEO- 5 psi Idle - 30 psi Faster- 28 psi Truck cranks up and drives fine, does not idle well, is weak/misses at low rpms and smells like i'm just shooting raw gas straight out the back end. Anything above an idle it seems to run fine. So in the...

Hey guys I am in need of assistance, My truck has had a problem idling with the ac or defrost on and i have no idea why. The truck idles fine when ac is off but when the ac/defrost is on then the rpms fluctuate from 1000 to about 500 until i start to accelerate again. does anyone have any idea...

I am having a problem with my 95 ford ranger. It's an xlt and has the 4.0 v6 and is a 5 speed. My check engine light has been on and it comes up "Evap plug fault" when i plug a computer into it. The truck also has a tendency to have a rough idle(fluctuates) when I pull up to a stop sign, etc...

This is a 5spd very basic truck no AC or CC. And it runs fine gets decent gas mileage. Has 113K miles bought it about three years back at 97K miles - at that time did a major tune up plugs - wires - etc. About a month ago it began having random starting issues. Cranks - tries to start - dies...

finally got a guy to fix my truck. he said the starter was bad so bought a new one and my wiring was bad so put my engine on 0" top dead center and wired the distributor, set the timing and now it starts up strong but now when i turn the key on run it rev's and when i turn the key to the on...

I have a 1999 ranger xlt 4x4 with the 4.0l and a 5 speed manual. I have noticed that when i pull up to intersections and stops, that my truck idles really high, like around 1500rpm. It does this whether the clutch is pushed in, in gear, or out of gear. Doesnt matter. When i come to a stop...

i just bought another ranger. i got it for a really good price of a family freind. It has some issues that i cant figure out. dont get me wrong, im great with engines but when it comes to all the wiring on obdII stuff im lost. the issues.... -speedo doesnt work. iv replaced both the speed...