Low idle to stall

[Tailman]

Hello everyone & thanks for help in the past.
Dropped My 94 wagon off at the local shop for some basic work while on Vacation.
Now Idle is way low & Cruiser stalls whenever I brake or stop.
The 02 sensor had popped out, so he re mounted with new studs & gasket, also welded a small leak back the rear mount (which he replaced).
Replaced the air filter.
He let the battery go dead & trickle charged it back up.

I've started it a dozen times and driven about 50 miles ... still low idle.

Share the brain power !!! AND Thanks again.

 

[landtank]

it should relearn it's settings. The truck needs drive cycles which is more than miles or the number or starts. It's a specific set of criteria that need to be met. Just continue to drive it and it should work itself out.

 

[Koffer]

you might want to check that the intake hose didn't crack when the air filter was replaced .
The other thing is you may need to drive it more since even starting it a bunch of times it my not have run long enough in a closed loop setting to relearn everything . your looking at under 5 miles each time you started it so thats not enough time to get everything set up

 

[blackhillsfj62]

So, is there not a way to adjust the idle manually? Mine has always been low since putting in my K & N filter...

 

[Lka1988]

So, is there not a way to adjust the idle manually? Mine has always been low since putting in my K & N filter...

You can fine-tune the idle, but that's about it.

BTW, get rid of the K&N. Personal experience speaking, there is not a single advantage to using one in these trucks. In fact, the only thing I DID notice was a gnarly build-up of oil in the intake tube, and I had never re-oiled the filter.

 

[blackhillsfj62]

You can fine-tune the idle, but that's about it.

BTW, get rid of the K&N. Personal experience speaking, there is not a single advantage to using one in these trucks. In fact, the only thing I DID notice was a gnarly build-up of oil in the intake tube, and I had never re-oiled the filter.

Really? Not trying to steal the thread but, is it detremental? Or just not advantageous (other than low idle lol)

 

[Lka1988]

Not trying to hijack, but, there are more advantages to using an OEM air filter as opposed to a K&N. Search up on it, you'll find a bunch of threads.

Anyway... to the OP...

I'd check the intake tube between the air filter housing and throttle body. It's more than likely got a big crack in it, and in many cases, is very well hidden.

 

[Grolar]

Just in case, isn't it possible that messing with the 02s has somewhat affected the harness? Our rigs are prone to this kind of failures.

 

[Tailman]

Back to the Idle

Thanks. I drove about 35 miles one day, 5 & 10-20 the next. Started it several times & let it idle (when it would).
I'll keep the cell phone & jumper cables with me & keep driving.
At what point should I just accept it needs a fix & take it to a computer/ Tech?

 

[tblume]

might be your PCV valve/grommet/tube, they get brittle and crack or shrink so there is a big enough vac leak to throw off the brain and cause this too.
HTH
welcome to the club

 

[thelal]

Pull the EFI fuse and see after a few starts if it changes.
Also is your gas ok?

 

[Tailman]

thanks, will try

Thanks, I'll check on these. Gas is fine.

 

[Tailman]

Well, no luck. I pulled the fuse, checked it, attempted to start with it out & put it back in. Several start attempts, no luck. Tried to run it for a trip ... now it won't reset at all.
Any more tricks? I cannot even get it past a couple of intersection (trying to use neutral to avoid stalls).
Be nice if I could at least get it to the shop ... if all else fails.
Also, gas is good. If I put a brick on the acceleration pedal, it old until I take the brick off
Thanks again

 

[jonheld]

Please read post #3.
This is a VERY COMMON issue.

 

[Tailman]

You guys rule !!!

Well, as usual, you fixed it. And it was a crack in the intake hose.
On visual inspection & feeling, I could not site it. When I took it apart (thinking maybe he left a rag or something in it), in between the ribs was a hefty split. As a temporary fix, I washed the hose, dried it ; applied a seam of Super Glue. Once that took, I finished with thin cut strips of duct tape in the recess and kept working layers out.
Next question .... where can I get a reasonably priced replacement ? SOR wants $140. Dealer $150.

Thanks guys!!!

 

[Grolar]

Wow, that was easy (r). Mud is a great place to experience breakdowns in.

 

[Nemo]

I have one for sale. Not sure if I posted it on Mud but here is the link. I am asking 50.00 for it so that should be attractive to you.

80 Series Air Intake Hose - Rising Sun Member Forums

Based on your Zip I would ship to I would guess no more than 55-60 dollars total shipping and part.

Sorry for the HiJack....

 

[ToothDr]

You can buy one here for 83 bucks plus shipping, OEM of course

https://www.1sttoyotaparts.com/






Hose - 1993-94 - 1993-94
93-94 $ $83.09