3rd & 4th Generation (1992–1996 & 1997–2001)Toyota Camry Discussion for years: 1992-1996 & 1997-2001
Topics of discussion range from fuel economy, safety, modifications, performance all involving America's favorite family car, the Toyota Camry.
I'm rapidly going nuts with the search feature, I've been looking for close to an hour for my problem but have found nothing!
Problem is me and my wife bought a used 1993 camry from a family member. Recently has had the tranny replaced, and even more recently the engine was replaced with a low milage used one (it had blown the head gaskets) so I have a low milage engine and tranny installed by some no name garage in Toronto and it runs GREAT!
...BUT... it won't pass an emissions test, and even more annoying, the idle speed seems quite high. The idle is consistent (but a bit high) while in park or neutral, however while in drive the idle swings from 900-1400 rpms constantly. Like it is trying to hold itself making constant rolling corrections, but it just keeps rolling and reving at an annoying low RPM.
I'm new to this car, I love the power and have the 3VZ-FE, but will someone please point me in the right direction? I'm asuming it might be as simple as a vacum leak somewhere (can't find one) but others have suggested that the catalytic may also be gone due to the coolant running through it for the past 1000KM's. Now that won't solve my idle problem but it may help with emissions.
Any help would be appreceated! I'm trying to get it on the road as soon as we can and I'm running out of money for people to do work on it!
Is that located in the throttle body I asume? Is there any special calibration or installation procedure for taking care of it? Why would it only be malfunctioning in drive and not in park you think?
It is on the outside of the TB. Download the manual at the top Of General Camry Discussion. It's pretty clearly shown.
I think you just notice it more due to lower RPM and engine load, sort of like bad plugs or wires which you sometimes don't notice until you try to accelerate.
It is on the outside of the TB. Download the manual at the top Of General Camry Discussion. It's pretty clearly shown.
I think you just notice it more due to lower RPM and engine load, sort of like bad plugs or wires which you sometimes don't notice until you try to accelerate.
That page is awsome! Facorty manual I guess? Anyhow, the only think it's missing is the 3VZ-FE engine, it has two other engines (a four and a 6)... is the 3VZ-FE like the other V6's engine management? Or am I not looking in the right spot?
I own a 3VZ-FE as well and have used that manual a few times. There is nothing amazingly different (that I have found so far). Only thing that differed so far that I ran into was an extra screw in the distributor cap. Hopefully someone else will let you know more but the V6 that is there already should suffice til you get more help
I own a 3VZ-FE as well and have used that manual a few times. There is nothing amazingly different (that I have found so far). Only thing that differed so far that I ran into was an extra screw in the distributor cap. Hopefully someone else will let you know more but the V6 that is there already should suffice til you get more help
Alright then, well before I pull any sensors, I've been told to run a few "Seafoam" treatments in the pvc and fuel systems.. Hopefully going to loosten up some stickyness there and level things out!
I just want to be sure it's not a vacum leak somewhere I can't see, so I'l like some diagrams..
Done any mods to your motor or is it stock? I'm thinking of doing a home made cold air intake..
I have a cold air intake on mine actually which was a really easy/cheap mod actually. You will come to find there aren't a lot of mods you can do to a 3VZ-FE unfortunately.
Wally,
Unscrew the IAC valve and just pull it back a bit from the TB. Hose out the guts with some carb cleaner, Have a cup of coffee, then hose it out again. Reinstall and tighten to spec. If that is the problem that should be the cure.
I have a cold air intake on mine actually which was a really easy/cheap mod actually. You will come to find there aren't a lot of mods you can do to a 3VZ-FE unfortunately.
Nothing exhaust-wise that is easy or reccomended? just the intake? I've heard timing can be bumped, but anything else is engine disassembly time..
The V6 IAC is quite different from the I4 IAC and easier to clean. Make sure the air hose going to the IAC from the air intake snorkle is crack free. As well, with these older 3FVZ's, the air intake snorkle tends to crack in the folds. Pull it off the TB and air cleaner body and stretch it out and inspect it for holes/cracks. Another thing you can check is the cruise control. It's located under that big black box (I think) where the throttle cable goes in and out of. Remove the cover and observe it while someone has the vehicle in drive to see if it is the culprit, or just observe any throttle movement at the TB itself. The other thing I would check is the transmission itself. Do you notice any slippage during gear changes or acceleration? Inspect your trans fluid color and level to make sure it is ok. Also play with the shifter a bit while in drive to make sure it's really engaging in drive properly and not borderline. It's possible when the trans was changed that they screwed up the cable adjustment a tad.
The V6 IAC is quite different from the I4 IAC and easier to clean. Make sure the air hose going to the IAC from the air intake snorkle is crack free. As well, with these older 3FVZ's, the air intake snorkle tends to crack in the folds. Pull it off the TB and air cleaner body and stretch it out and inspect it for holes/cracks. Another thing you can check is the cruise control. It's located under that big black box (I think) where the throttle cable goes in and out of. Remove the cover and observe it while someone has the vehicle in drive to see if it is the culprit, or just observe any throttle movement at the TB itself. The other thing I would check is the transmission itself. Do you notice any slippage during gear changes or acceleration? Inspect your trans fluid color and level to make sure it is ok. Also play with the shifter a bit while in drive to make sure it's really engaging in drive properly and not borderline. It's possible when the trans was changed that they screwed up the cable adjustment a tad.
davemc
I was concerned about the adjustment of the transmission, it was changed ebfore the engine and it used to slam very hard when upshifting, my sister was driving it at that time. It seems to have calmed down a bit, but it might be worth a check on the cable adjustment if it's not to involved.
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