1992 3VZFE has NO power under throttle?! HELP - Toyota Nation Forum : Toyota Car and Truck Forums

L-Burna · 03-08-2010, 02:14 PM

hey guys,

my '92 has a pretty bad oil leak (or 2) currently unknown where from. just last night i was swapping the Camry & es300 around in the drive way and put my foot on the gas (in ES300) to go up into drive and the revs didn't move, if anything they went down to around 600-800rpm from a 1100RPM idle, then after 3-4 seconds it slowly accelerated but with NO power whatsoever - could this be oil leaking onto a drive by wire throttle or something? WTF!!! any ideas plz chuck em in! thanks

hill8570 · 03-08-2010, 03:00 PM

Drive by wire didn't hit the Camry's until >10 years after '92.

Could be a lot of things....plugs, throttle plate, injectors, fuel pump. I'd suggest getting under the hood and playing with the throttle to try to narrow things down a bit.

73sport · 03-08-2010, 04:55 PM

Sounds like it became "wireless" whereby the wire that used to connect the gas pedal to the throttle plates now resides in two parts!

Of course this is hug speculation on my part.

^+1 for open the hood and look! You never said if it revvvvved up in park or N? How about if you turn the wheel?

Please define, "slowly accellerated". . . .
A reliable answer from the BORG will only come from knowing the facts.

Is the throttle cable connected to the TB? Will it rev in N?
Does it idle OK? Does it pull, but makes no power? Does it work in reverse? When is the last time it was 100% OK? Does the tranny have fluid in it?

All that fun stuff. . .

Luckynumber5 · 03-09-2010, 01:01 AM

Could be a couple of things with the 3vz, my experience has been water in the dizzy or needing a new cap and rotor can both cause this exact issue.

L-Burna · 03-09-2010, 11:46 PM

Thanks for the replies guys.

Today i got under the bonnet just after checking fluids, cold-started it and revved it. you'll see in the video, fluids all good as appears in pix...

only other thing i noticed BEFORE i started the car... the radiator reservoir fluid was green and happy. but the rad hose between engine and rad was flat as if it had vacuumed. when opening the rad cap it 'gasped' in air.. so i pondered a bit and then removed my fluid container and filled the void in the rad fluid with anti-freeze (from the reservoir).. went for my short drive and upon pulling back into the drive way it was partially vacuumed again, and
'gasped' upon opening the rad cap again.

as im sure you'll be able to hear from the first video, the engine is very hesitant to rev when i pull the throttle cable. it kinda hesitates at first, after i did those first couple of rev's i got in and drove it and it appeared "okay" its still very slow to accell compared to my Camry (same engine etc just a lighter car)... just seems MUCH slower than the Camry. please keep in mind that i would never normally rev my cars this hard when they are cold

http://www.youtube.com/watch?v=ZHJr-vAS3uw

http://www.youtube.com/watch?v=ZUNdX2bMMSA

hill8570 · 03-10-2010, 12:02 AM

Quote:

Originally Posted by L-Burna

only other thing i noticed BEFORE i started the car... the radiator reservoir fluid was green and happy. but the rad hose between engine and rad was flat as if it had vacuumed. when opening the rad cap it 'gasped' in air.. so i pondered a bit and then removed my fluid container and filled the void in the rad fluid with anti-freeze (from the reservoir).. went for my short drive and upon pulling back into the drive way it was partially vacuumed again, and
'gasped' upon opening the rad cap again.

Need to replace the radiator cap -- it's not allowing the fluid back into the radiator from the res after the engine cools off...exhaling but not inhaling, you might say...

Luckynumber5 · 03-10-2010, 02:15 AM

It would be boiling over if that were the case.

Engine seems to rev fine, have you checked the cap and rotor yet?

L-Burna · 03-11-2010, 12:40 AM

Quote:

Originally Posted by Luckynumber5

It would be boiling over if that were the case.

Engine seems to rev fine, have you checked the cap and rotor yet?

http://www.youtube.com/watch?v=CBooijkY-Q4

Luckynumber5 · 03-11-2010, 02:47 AM

3vzedfe lol I love the accent. When you revved the engine while in park it sounded normal is what I meant to say.

I have had the exact same issue, a couple of things can cause it mainly cap and rotor are messed up, timing has jumped a tooth or two or it is running too lean.

My car did the exact same thing a few years ago, turned out to be the cap and rotor were very worn. It did it again a year later and it turned out to be the afm was out of adjustment causing the car to run lean when cold and fairly lean while warm. When it was cold it would barely move just like yours.

EEngineer · 03-11-2010, 02:51 AM

ohh yea i heard something about the AFM cold morning start syndrome.

AFM has a valve and if it catches moisture and freezes...ur AFM will get stuck and all the power will be gone to crap.

same idea if the thing seizes.

i've never had this problem with my 3vz...but I should definitely keep an eye out for this then haha

***BMR*** · 03-12-2010, 12:03 AM

L-Burna - I noticed in your last video the temperature gauge was pegged at "cold". Does the bogging go away quite a bit when it's warmed up? If so, you might want to read this thread below. My Camry would bog as bad as your ES300 before I adjusted the AFM's "idle air bypass" per Luckynumber5's instructions in that thread. Maybe worse!

3VZ-FE bogging when cold.. o2 sensor or otherwise?

The idle air bypass info is in post #33.

There's also some info in there regarding adjusting the "AFM tensioning spring". Good stuff. Made a world of difference on my Camry!