Hello everyone and thanks for taking the time to read this! I have a 1989 Toyota Tercell, 5 speed and I am having this problem. The car starts up fine drives fine for the most part, but when I come to a stop light or when I stop the idle gets really low as if the car wants to cut off. Sometimes the car does cut off. I have to leave it in neutral and apply gas so the car does not cut off when stopped. This happens whether I have the AC on or not as I have tested both ways. I have always kept an eye on the Temperatures and Coolant levels and car has never overheated. The only other thing I have noticed was that when I am driving sometimes the car will sputter like it is not getting any gas to it for a moment then pick back up again even while I have the gas pedal pressed. This is only happens randomly however. Any assitance you can provide to me would be greatly appreciated. Thank you in Advance for any input.


(This post was edited by rdjediknt on Jul 29, 2005, 3:01 PM)

Most cars have an idle speed motor that actually adjusts the idle, even back to the 80s. You should see it move as idle gets too low. Could be the motor or a sensor. At its age probably the motor - just guessing, Tom
_________________________________________


Tom Greenleaf - MetroWest, Boston

http://acsource.net/acforum/index.php

is it stil the carby fed motor. which motor, which carby/inlet.

This happens to my very old 1981 Toyota Corolla
KE70 (1,290 cc, 4K engine, Malaysian market), every
now so often too. The idle speed on the Aisan carburetor
for this type of engine is adjusted by only a simple screw,
tensioned with a spring. There is no idle motor.

I just changed the carburetor again, to a new one meant
for the 1,166 cc, 3K engine. You may note from my earlier
post that the first new carburetor which I had installed
last year was giving trouble with the vacuum outlet, so
I had to replace it again a few weeks back. I've just
found out that both carburetors are likely made in
China by this company, hence the lower cost and
inferior reliability !

http://www.kinzo.net/english/product/index.asp


I've read in another forum that the Aisan carburetor
has a kind of "power piston" in the idle circuit, whose
purpose is to enrichen the mixture during low vacuum
conditions, like idle. If this piston jams or functions
erratically, like due to micro-abrasions in its chamber
over time, the mixture will become way too rich and
the engine may well sputter or die off. The user who
posted this (in some Suzuki jeep forum, I think) was
pretty skillful, and managed to hone the chamber and
replate the piston or something. Otherwise, the only
option may be to send the carb to shops for rebuilding.

But it may also well be the idle motor as Mr Greenleaf
suggested. You should check this first.

The Aisan is a real problematic carburetor actually.
Pretty poor on fuel economy too. Possibly that's why
some Toyota users switch over to Weber carbs, but
then there may be throttle linkage problems.

I've been thinking of sending my original carburetor
to this shop for rebuilding, but it's pretty costly,
about US$250. Still it's the cheapest I could find, other
places in the States quoted me up to $325. Nobody in
Malaysia knows how to rebuild carburetors.

http://carbspec.com/

They sounded quite professional when they replied my
enquiry.


(This post was edited by Tham on Aug 27, 2005, 11:23 AM)