Author Topic: Name that EFI part and what it dose (Read 4868 times)

unclejpl4x4 · « **on:** Apr 13, 2008, 09:13:01 AM »

OK you guys are gonna think im crazy

I can't find this little bugger in any manual paper or online well It shows up in the manual but no reference to it or how 2 adjust it.

one big hose goes 2 the throttle body. one hose goes 2 the distributer and theres others.

I never had 2 mess with one (till now) so i never put any thot in to it i feel

asking.

79coyotefrg · « **Reply #1 on:** Apr 13, 2008, 09:16:00 AM »

thats one of those emission doohickies

unclejpl4x4 · « **Reply #2 on:** Apr 13, 2008, 09:34:09 AM »

well ya see i have 2 of them one from each moter don't know which. The screw has been turned So i wanna find how 2 adjust it. I believe it has 2 do with vac adv.

DTB · « **Reply #3 on:** Apr 13, 2008, 09:35:32 AM »

Quote from: unclejpl4x4 on Apr 13, 2008, 09:13:01 AM

OK you guys are gonna think im crazy

Oh, we dont THINK anything....its a proven fact

94MtnYote · « **Reply #4 on:** Apr 13, 2008, 10:22:12 AM »

Does your truck have power steering? I THINK that my truck with PS has those hoses, I think they are blocked for manual steering.

boggerunner · « **Reply #5 on:** Apr 13, 2008, 11:01:59 AM »

just a guess, but i've always thought it was an idle adjustment for the power steering

DTB · « **Reply #6 on:** Apr 13, 2008, 11:08:16 AM »

What do I win if I get it right?

94MtnYote · « **Reply #7 on:** Apr 13, 2008, 11:10:36 AM »

some

unclejpl4x4 · « **Reply #8 on:** Apr 13, 2008, 11:32:47 AM »

Quote from: DirToyBoy on Apr 13, 2008, 11:08:16 AM

What do I win if I get it right?

gum drops

and yes i have power steering

unclejpl4x4 · « **Reply #9 on:** Apr 13, 2008, 12:10:56 PM »

O boy ya i had a blond moment it is apart of the power steering joe >

< joe so how do you/where adjust it

this is why i need atleast 1

a day

KDXSR5 · « **Reply #10 on:** Apr 13, 2008, 12:30:29 PM »

I have power steering and I don't have one. $I\'m Down$ See the blocked off port on my intake?

boggerunner · « **Reply #11 on:** Apr 13, 2008, 08:49:04 PM »

some have it, and some dont, my 92 2wd motor has it

Tice · « **Reply #12 on:** Apr 13, 2008, 10:17:00 PM »

It is for the power steering. Basiclly it raises the idle to help turn the tires while the truck is not moving. Atleast thats what I've been told.

WHITE_TRASH · « **Reply #13 on:** Apr 13, 2008, 10:45:37 PM »

Quote from: Tice on Apr 13, 2008, 10:17:00 PM

It is for the power steering. Basically it raises the idle to help turn the tires while the truck is not moving. At least thats what I've been told.

Yup it is connected to the p/s pump to raise the idle when you are turning so the engine doesn't bog down under the increased load of actually turning the tires while parked.

Basically it creates an adjustable and controlled vacuum leak. You turn the knob to adjust how big the leak is...

unclejpl4x4 · « **Reply #14 on:** Apr 14, 2008, 06:13:34 AM »

So it's safe 2 say turn the screw turn the wheel and see whats best...............

I still could not find it even under the steering part of the manual

DTB · « **Reply #15 on:** Apr 14, 2008, 06:24:45 AM »

I couldnt find it either joe....I thought it was an idle up for AC and power steering....

*ROKTOY* · « **Reply #16 on:** Apr 14, 2008, 06:33:29 AM »

That is the AC idle up solenoid, it increases your idle speed when the ac compressor is engaged. Turn on your AC and turn the large hex till you achieve the desired idle.

unclejpl4x4 · « **Reply #17 on:** Apr 14, 2008, 06:34:52 AM »

the AC idle up is one of the eletrice sol on top of the valve cover with wires/vac hoses

boggerunner · « **Reply #18 on:** Apr 14, 2008, 10:26:08 AM »

since i was the firts one to guess what it is, where is my prize? I want a COOKIE!!!!!

DTB · « **Reply #19 on:** Apr 14, 2008, 10:30:23 AM »

Quote from: boggerunner on Apr 14, 2008, 10:26:08 AM

since i was the firts one to guess what it is, where is my prize? I want a COOKIE!!!!!

u get a stale, half-eaten chips ahoy for a partial answer

94MtnYote · « **Reply #20 on:** Apr 14, 2008, 10:38:36 AM »

Quote from: boggerunner on Apr 14, 2008, 10:26:08 AM

since i was the firts one to guess what it is, where is my prize? I want a COOKIE!!!!!

Here ya go!

*ROKTOY* · « **Reply #21 on:** Apr 14, 2008, 01:04:17 PM »

Quote from: unclejpl4x4 on Apr 14, 2008, 06:34:52 AM

the AC idle up is one of the eletrice sol on top of the valve cover with wires/vac hoses

Those are the AC VSV, that is the AC idle up valve.

JohnHalladay · « **Reply #22 on:** Apr 18, 2008, 12:32:00 PM »

that is not power steering. that is for your ac. trust me on this one.

WHITE_TRASH · « **Reply #23 on:** Apr 18, 2008, 12:47:28 PM »

Quote from: JohnHalladay on Apr 18, 2008, 12:32:00 PM

that is not power steering. that is for your ac. trust me on this one.

OK I'll bite, if thats not for power steering why do the vacuum lines run to the p/s pump?

94MtnYote · « **Reply #24 on:** Apr 18, 2008, 12:48:57 PM »

just looked at this yesterday and had the same question.

JohnHalladay · « **Reply #25 on:** Apr 18, 2008, 12:50:02 PM »

i have power steering on my truck and i dont have that thing.

WHITE_TRASH · « **Reply #26 on:** Apr 18, 2008, 01:06:58 PM »

Ive seen rigs with power steering that don't have the vacuum booster on them too. That doesn't mean that none of them did though.

JohnHalladay · « **Reply #27 on:** Apr 18, 2008, 01:08:55 PM »

every yota that ive seen that has ac has that thing. and every yota that doesnt have ac doesnt have that thing.

WHITE_TRASH · « **Reply #28 on:** Apr 18, 2008, 01:15:35 PM »

AND? Like I said, just because YOU haven't seen it doesn't mean it doesn't exist... My 94 engine has that and it has ac too but thats not what kicks up the idle... On 3rd gens there is a box inside the dash with a knob that you turn to change the idle when teh a/c is turned on. Ever see a toyota pickup automatic with a column shift?

JohnHalladay · « **Reply #29 on:** Apr 18, 2008, 01:17:17 PM »

i dont thik i have seen that

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