Author Topic: Lots of issues about ideling! Plz help (Read 2887 times)

80hilux4x4 · « **on:** Dec 10, 2011, 09:52:53 AM »

20r totally stock does everything but idel... other wise runs perfectly. Now the carb has been rebuilt put another fuel pump on as well as new fuel lines. Still can't. Get the truck to idel smouth at a normal rpm i have the idel screw pretty much maxed out just to get it to run and usually if it stays running it will runn very lopie or rough and surge or sometimes it will just decide to idel high like it should for. How far the idle screw. Is turned in but i try to turn it down and get it right but never happens... i had the egr port in the intake manifold was clogedgot that all cleaned and working agin with no results so i blocked it off agin. Have searched every hose for leaks foynd none also pulled out the manual and checked to see that all vaccumm lines were ran corect. I am pretty mich totally stumped here any advise would be super helpe full

toyodaaddict · « **Reply #1 on:** Dec 10, 2011, 11:56:06 AM »

have you checked that the fuel cut solenoid is working and that the O ring on it is good?

H8PVMNT · « **Reply #2 on:** Dec 10, 2011, 12:53:13 PM »

I had a bad ignitor that wouldn't let me idle on my 20r once.

BHT12 · « **Reply #3 on:** Dec 10, 2011, 12:54:16 PM »

Are you sure you dont have a big cam in it?

Thats what it sounds like to me.

80hilux4x4 · « **Reply #4 on:** Dec 10, 2011, 01:04:49 PM »

Lol naw no cam. The fuel cut silinoid thats the only elertical thing on the back pasanger side of carb right? I dis replace the o ring on it when i rebuilt the carb. What so i do to go about checkin if it works? And h8pvmnt what u mean by igniotor?

BHT12 · « **Reply #5 on:** Dec 10, 2011, 01:10:28 PM »

On the driverside where the coil is.. the ignitor should be mounted on the wall next to the fender.. pretty much right be hind the coil.. it should be labeled ignitor across it.. if you need one i have one i can sell you for cheap.

BHT12 · « **Reply #6 on:** Dec 10, 2011, 01:12:12 PM »

or it could be right below the coil.. the little black rectangle below it

BHT12 · « **Reply #7 on:** Dec 10, 2011, 01:19:14 PM »

I circled it in the picture

80hilux4x4 · « **Reply #8 on:** Dec 10, 2011, 01:27:13 PM »

Ahh i see i am pretty sure mine might be mounted right on top of my coil

80hilux4x4 · « **Reply #9 on:** Dec 10, 2011, 01:29:37 PM »

Wonder how much one of those ignitor costs

BHT12 · « **Reply #10 on:** Dec 10, 2011, 09:28:47 PM »

I told you i have one I cann sell you for cheap.

80hilux4x4 · « **Reply #11 on:** Dec 12, 2011, 09:05:18 AM »

Well any other advise anyone i have tested the fuel cut and threw in a new ignitor with all the same issues. Also when tbe front end of the truck is facing up hill like rock or hillclimbs it idles f :inthedark:aster

Sparkplug · « **Reply #12 on:** Dec 12, 2011, 09:42:06 AM »

have you checked the float level?

i also have a known good 20r carb, 20 plus sipping, But they rarely fail, its probably something stupid easy on yours.

80hilux4x4 · « **Reply #13 on:** Dec 12, 2011, 10:06:05 AM »

Yep i have messed with several. Different float levels. On the low side high side right in between i have it set to right in the middle of the sight now

83 Crawler · « **Reply #14 on:** Dec 12, 2011, 10:08:19 AM »

Quote from: BHT-ToyotaDude112 on Dec 10, 2011, 01:19:14 PM

I circled it in the picture

that's voltage regulater for the alternater im pretty sure

yotaboy79 · « **Reply #15 on:** Dec 12, 2011, 07:59:36 PM »

Quote from: BHT-ToyotaDude112 on Dec 10, 2011, 01:19:14 PM

I circled it in the picture

That is the voltage regulator for the charging system. The coil and igniter are bolted together and right next to the voltage regulator in your pic. Normally When the igniter goes it won't run at all. Is it running ritch at all? How does it run besides the idle problem?

80hilux4x4 · « **Reply #16 on:** Dec 13, 2011, 09:57:26 AM »

Man it runs like stright fire... runs very hard for the orginal motor never had the head off lol bought it from orgi.al owner about 6months ago. And yes circled in the pic it a voltage regulator and also the pic from an engine bay of an 82 i think? Maybe wrong. But just guesing cuse mine has a round coil pack with the ignitor bolted to the top. But on another note was having voltage regulator problems last night so ordered a new one from carquest. Sond be here at 2 some reason i doubt that will fix my ideling issues but it needs a new 1. So any more advise withh be help full

80hilux4x4 · « **Reply #17 on:** Dec 13, 2011, 10:00:31 AM »

And don't run rich at all and idle mixture screw won't. Affect anything i have tried lol

H8PVMNT · « **Reply #18 on:** Dec 13, 2011, 11:32:56 AM »

Maybe just rebuild the carb too. I did mine and it helped ALOT with idling, running, starting etc.

SloCrawler · « **Reply #19 on:** Dec 13, 2011, 01:13:07 PM »

i had a simiular problem, ended up being the electric choke fuse was bad

80hilux4x4 · « **Reply #20 on:** Dec 13, 2011, 03:17:34 PM »

Don't have eletric choke and just rebuilt the carb

H8PVMNT · « **Reply #21 on:** Dec 13, 2011, 03:30:48 PM »

Oh yeah I see that above, sorry...

This is one of those stupid things, but a few weeks ago while wheeling to feed some horses my truck died and barely idled at all when I restarted it. My gas pedal went limp. The throttle cable housing had slipped out of the tab on the top of the valve cover where the barrel adjuster with the two nuts is. The carb is adjusted by the book and idles fine but still would not idle without the tiny bit of preload on the throttle cable. When I quikely put it back in the idle was way high because I had the barrel adjuster off a bit... I later adjusted it back down.

Which leads me to my suggestion: You can do alot of adjustment to idle by backing up the nuts on that cable housing adjuster. Maybe if you put a bit more preload on the throttle cable there you could get your carb adjustments to make sense.

If it's not the ignitor or the pickup in the distributor or ignition related and your fuel cut thingy is working right then it may be something just that stupid.
Have you changed the fuel filter? That's another small dumb thing that has caused crummy idle for me in the past.

80hilux4x4 · « **Reply #22 on:** Dec 14, 2011, 08:39:21 AM »

Ya gonna do new vaccumm lines just cuz they old and gonna look into that primary fuel cut abit more see if its not gettin good power or whats up

BHT12 · « **Reply #23 on:** Dec 14, 2011, 12:13:47 PM »

Quote from: 83crawler12 on Dec 12, 2011, 10:08:19 AM

that's voltage regulater for the alternater im pretty sure

Quote from: yotaboy79 on Dec 12, 2011, 07:59:36 PM

That is the voltage regulator for the charging system. The coil and igniter are bolted together and right next to the voltage regulator in your pic. Normally When the igniter goes it won't run at all. Is it running ritch at all? How does it run besides the idle problem?

Duh.. i mus have had a fart in my brain that day

80hilux4x4 · « **Reply #24 on:** Dec 14, 2011, 12:55:50 PM »

Haha it koo man no worries and I FINALLY FIGURE IT OUT! Everything works the problem is the primarly fuel cut dosen't seem to be getting power from the harness? I am guessing this because i ran jumper wire fromthe battrie to that slinoid and bang she ideled good and smouth and low for once but how to find out y its not getting power the wires all look fine with all the little pegs in the conectoors?

Also would it be ok to give that primary fuel cut a constant power source or what cant think what would control that little thing

80hilux4x4 · « **Reply #25 on:** Dec 14, 2011, 01:05:05 PM »

And in fewer words the primary fuel cut slinoid works but isn't gettin power and advise on figuring this out is needed

BHT12 · « **Reply #26 on:** Dec 14, 2011, 01:07:29 PM »

On my 77 toyota i had the fuel pump when out right after i got it.. took me forever to figure it out but i ended up putting it on a switch under the dash.. made it nice because no one could steal it. but your runs either way right?

80hilux4x4 · « **Reply #27 on:** Dec 14, 2011, 01:43:57 PM »

Ya they with still run justthe slow side of the carb won't work so the primary would be on all the time qitch mine is doing needing some advise on teicking it down

80hilux4x4 · « **Reply #28 on:** Dec 16, 2011, 12:47:12 PM »

Well can't. Seem to track down why my fuel slinoid isn't gettin any power all fuses r good

83 Crawler · « **Reply #29 on:** Dec 16, 2011, 01:28:11 PM »

i had same problem dealed with it for 2 years, then said screw it and got the propane kit and it runs amazing now

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