o ring fix solved high idle (1 Viewer)

[gotmud]

***Update***

As I mentioned yesterday, I tried one o-ring which made my idle way too low, and two still kept it around 1200rpm for a few minutes. This morning I went and disconnected the battery and then started it. After a few starts, all is normal. Now, with one o-ring, it idles around 1000 rpm and settles down to 650 in short order. Looks like resetting the ECU's memory did the trick.

 

[gisham]

oh well- maybe ill try 3 or 4 o-rings

 

[gotmud]

Try resetting your ECU and see if that makes a difference.

 

[gisham]

ECU reset worked- FYI

 

[gisham]

well shoot- reset ecu, worked like a charm last night and this morning. tonight when i left work I started up the truck "vvrrrrroooommmm" up to 2000rpms! its like the dang thing reset itself. unplugged the battery and re plugged it in tonight after i got home, let it sit for a few hours and its fine again- does this ecu try to correct itself or something? anyone else had this happen?

 

[toyman317]

Mine starts out at about 1800 then quickly to 1600 but when it is warm it runs so great that I hate to screw it up. I am very interested in what you guys come up with here.

 

[gisham]

anyone know if the ecu will try to "correct" itself? i hate to have to unplug the battery every day to keep the idle down- by any chance has anyone just replaced the IAC?

 

[cpg]

I have high start up RPMs but my idle is about 500-600 RPMs after engine is hot. Will the O-rings lower my RPMs after the engine is hot too? I hope not.

No it will not

 

[Cj80cruiser]

No it will not

Thanks CPG!

 

[calfj60]

Very interesting...guess i need to find the o ring...

 

[vladi80]

hmm my 93 starts at 1600...I thought it was normal. So where is this oring located

 

[vladi80]

I need to do this too since my 93 starts up at 1600 or so. Here is the link I found. http://www.lcool.org/technical/80_series/fast_idle/fast_idle.html

 

[MaddBaggins]

I need to do this too since my 93 starts up at 1600 or so. Here is the link I found. http://www.lcool.org/technical/80_series/fast_idle/fast_idle.html

Thats the one, go for it. It's a job.

 

[gisham]

let me know if it works for you guys- cause i tried o rings- then went to washers- but still has high idle...i have considered just replacing the IAC- if i knew for a fact it would fix it i would drop the $$$

 

[Kernal]

Newb question: For the FZJ-80, how high should the idle be normally first thing on a cold start, say with 60-70'F air temp, and how long should it take to get down to 650rpm's, assuming temp sensors, IAC, thermostat, etc are all working properly?

 

[malottki]

Did this today. Worked out great. The screws were a bugger to get out but once I got them to break free the process was cake. Thanks to all for the info.

 

[vladi80]

where did you guys buy the o ring..? local parts store or on the web ?

 

[malottki]

Got mine at home depot in the plumbing section. 10 for 2 bucks.

 

[vladi80]

awesome I'll swing by tonight. THANKS