Question about 2005 Toyota Corolla

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Normal idling speed

Cold and hot temp idling speed on verso 2.0 d

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  • Toyota Master
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A manual transmission is about 400 RPM and and automatic is about 700. When you put the automatic in gear it will drop by about 200. When the engine is cold you can be about 1100.

Posted on Dec 18, 2014

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Posted on Jan 02, 2017

airjer995
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SOURCE: 1998 Toyota Camry - as

Sounds like you have a bad thermostat. It can be found behind the hosing that attaches to the engine that the lower hose goes to.

Posted on Dec 07, 2010

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1 Answer

Fast idle cold to hot


to fast hot and too fast cold that it?
well here is normal, its a G16 engine, a Vitara with Sidekick badge.
G16 in cold weather, start and race idle at about 1500 rpm
or more if in ALASKA, you never said that or how cold it is.
the IAC valve is thermal, it and opens more colder, a fact.
the 8valve engine (black steel top) is faster. cold idle
then drops in a few seconds, to 1500rpm
at this time, the ECU brain does NOT control idle speeds at all.
the the engine warms up by virtue of the thermostat
as it warms to 150F to on way to 180f stock temp.
the ECU then takes control of the idle speeds.
got that so far?
so at 180f the idle is 800 rpm (800 is hard coded in the ECU,
ad ECU regulates this, unless you turn on the A.C , and if that happens 1000rpm is called up.
if not the ECU cant control it or the ECU is in limphome mode or worse.

if you insert the diagnostic jumper
does the CEL lamp flash 12s
it must.
see this paper clip this is your only scan tool.
it is crude but that is all you get until 1996.

http://www.fixkick.com/CEL/CEL.html#OBD1codes


Jan 04, 2017 | 1993 Suzuki Sidekick

1 Answer

Engine idles at 1000 RPMs.At 60 MPH 2000 RPM's.Is this normal?


the 4.0L engine?
is this engine cold or hot.
why is 2000 rpm wrong for 60mph., (depends on engine and axle size and what gear you were in , then)

the idle speed for hot is too high
did you scan the PCM yet?
if hot , idle is high, is the thermostat holding water temp 180f or above. ? if not that is the problem.

Aug 23, 2016 | 1996 Jeep Grand Cherokee

2 Answers

How do I adjust the idle speed on a Toyota Corolla Verso


you can adjust the idle air right at the air intake

Feb 25, 2015 | Toyota Corolla Cars & Trucks

1 Answer

Normal idle speed when cold once hot low idle speed


will be a sensor problem need to get the OBD read by a suitable mechanic

Mar 12, 2014 | Renault Cars & Trucks

1 Answer

Camaro LT1 runs great, but idle speed varies when hot


The fan should come on and should flash 1 then 2 for normal operation. Your IAC valve on the throttle body should be cleaned or replaced. After reinstall , turn key to on position for 1 min. then off for 1 min. To reset.

Mar 11, 2014 | 1994 Chevrolet Camaro

1 Answer

1995 jeep gr cherokee laredo jumps when first star in morning and runs rough when ac or heat on


my guess, car unseen.
car has an A/T trans, and all A/T jump from park to drive
selection is made on a cold engine, due to the very fast idle speed.
what was the park and cold idle speed. and out door temps.
the lower out door temps, make idle speed , cold engine, even higher
but when the engine reaches 180F or more and holds, the RPM
is about 800 RPM (the FSM tells the exact amount and does vary for the unstated engine option) so at 800 the tranny don;t lurch, did it on a hot engine. so if idle speeds are wrong say so and say it with engine temps. or its all meaningless.
next :
runs rough, the engine (even parked?) is called misfire.
misfire on a good engine (full compression)
is:
1: bad spark (or never had a tune up ever) every 60k miles.
2: bad fueling. too rich, too lean (low idle) bad injectors (stuck or clogged, or wrong fuel pump pressure or bad Fuel pressure regulator)
3: bad fuel.

there is a test for each possible failure. all very simple test.
it takes $80 in gauge tools to find engine problems.

Dec 30, 2013 | 1995 Jeep Cherokee

1 Answer

How to adjust idle?


hot engine ?, cold or both,, EFI runs in 3 modes, cold ,warm and hot.

name it.

which engine option (displacement)??????



there is no idle adjust, that is the PCMs, job 100%, all the time.

Carbs are gone.

here is rule one for all EFI.

idle is the last thing to work correctly.

anything the causes a gross imbalance of engine power to engine load, under idle will cause , idle controls to fail.



low idling causes. (over 50 but, here ar basics)

1: AFR (air fuel mixture too lean) usually surges. (clogged or leaking injectors. or fuel pressure way to high)

2: air leaks, cause racing, so not that. (speed density car ,if is)

3: egr stuck open. low idle and misfire.

4: ISC stuck closed (IAC electric)

5: cam belt slipped, timing retarded, compression at 1/2 spec, and well, valve will bend soon....

6: CEL glowing running? can be in limphome, limp cancels Idle controls (in may cases) RTM read the FSM on DTCs.



if fails hot?, is hot = 180F temp or more? "thermometer time"

if not, the PCM goes , quite nuts.

Dec 23, 2013 | 2010 Honda Civic LX

1 Answer

Cooling fan problems


Hi Dave the ECU receives messages from sensors, one of which is a temperature sensor. When the sensor responds to a temp higher than the normal operating temp the fans are then and only then supposed to operate. They will switch in for a brief period and then turn off again. The idle speed is in direct relation to the cold start up idle requirements and specifications. When the engine is cold the idle speed will automatically increase and as the engine achieves operating temp, the idle speed will decrease inthe way you have recorded. If you start the engine and allow it to idle until normal temp is achieved the fan should cut in. The way you've desribed all systems are A okay!. Regards John

Mar 29, 2012 | Pontiac Montana Cars & Trucks

1 Answer

Lotus Esprit S4 NOT idling correctly


the se esprits the s4 and s4s series are programmed to speed up engine rpm and close off the exhaust back pressure valve to speed up the heating of the catalytic converter to operating temperature and is quite normal regardless of engine temp. if you quickly blip the throttle pedal a few times it should settle as the cat temp rises if that is the case then it is all working as normal.

May 04, 2009 | Lotus Exige Cars & Trucks

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