time to join the toyota death club.?.. LOL !!!!
eg; floor mats hitting throttle???? nah, nobody is that daft.
which engine options?
1.3 L
M13A I4 (
petrol)?
1.5 L
M15A I4 (
petrol)?
1.3 L
I4 (
diesel)?
but is ok, parked, with trans in neutral??????????
the normal RPM is about 800 hot.
not the word hot, it must be. it must be hot, 180F min. holding
hot. does it? we use a $9 scan tool to scan the ecu
and look at the ECT, does it show, 180F?
like this shows. driving dead cold the engine, warms, see it?
http://www.fixkick.com/my96-16v/TP-MAF-VSS-ECT-FUEL.JPG
the blue line, that is ECT, engine coolant temp sensor.......?
ok we got past rule one, and all fuse are good, we check.
The ECU (EFI BRAIN) in your car controls idle at all times.
GAS ENGINES, diesel we dont have here, in 2005 USA.
in your case, (hot) it does not, so can be only 2 things.
1: the ISC is messed up. (stuck open, so clean it.)
or
2: the EFI fueling is bad, causing #1.
the EFI controls might go rich or lean, and there can be air leaks in to the air intake system, (induction) on MAP engines, it races fast.
on MAF engines, it goes lean and idles slower.
i have no idea what system you have as my on line source skips 2005
what country?
is the CEL glowing key on?> check engine lamp
then stays out running>>>>>?????
do you have a maf sensor on the main air pipe? some are hidden in the throttle body. on some suz.
i believe this car is MAF based, (with map used for EGR tests only)
on very new cars, the MAF can fail, and the ECU is so smart
it can start using the MAP as backup,
or on some newer cars, it uses both , map works best at idle.
most mAF do a poor job at air flow reading at idle, (touch)
that is whats out there......
what does all this mean, simple
you start the engine, the CEL stays glowing, scan it.
you scan it and find the MAF is dead./ engine is in limphome
and in limphome mode idle controls can be DEAD>
ok CEL is out
engine hot, EFI is in CLOSED loop at idle and LTFT is like -4%
long term fuel trim. looks good, so if idle is wrong
the ISC is BUNGED
see what i did there , i used a $9 scan tool to tell me
the EFI fueling is good. so the ISC is bad.
the ISC can be 1 to 3 parts. (iac/iSC parts)
if any stick , it races. or stalls , depends on where is stuck
its just and air valve.
on MAF systems the ISC uses metered air and fuel is mixed perfect
so if it sticks open fueling is perfect and idle is RACING.
that is how EFI works. (fuel,idle, not spark)
i found what you had on the swift forum..... no lack of info there.
random page
http://www.teamswift.net/viewtopic.php?f=11&t=49725
most the questions answered this page are wrong cept last.
the maf on your car has extra capacity, so a bigger one does NOTHING. and the closed loop , will cancel the kids fiddling .
they dont understand EFI.
read
Greg Banish books to see how
all the bits work together. including how hard it is to get idle controls to
work right, its the last thing that does,,,,, work right.
ifcar has MAP total system (speed density ) most of my comments above are bunk,,,,
on SD systems, all air leaks, cause RACING ! apples and oranges different. they are...
to work efi , you need to first know
what is there.....
My 90 Tempo 2.3 liter idles fast and the idle wanders. it slows down immediately when the bypass orifice ahead of the throttle valve is blocked.
it also fouls easily when starting.
×