Question about 2006 Porsche Cayman

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Misfire at low rpm with cayman s

Idle speed fluctuates between 600rpm and seems torun rough and vibrate and warning light engine comes on go to dealer

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SOURCE: misfiring on right side at low rpm.

could be a catalytic converter or o2 sensor. really would need to hook it up to a proper scan tool to view live data while running.

Posted on Apr 12, 2010

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Ive got a Corolla 2006 model,im getting a lot of vibration from the engine while in drive but stationary-like at the red light,my engine RPM is showing about 500 is that to slow can I get the RPM adju


Hello, the idle speed is controlled by the computer, there is no adjustment, what you can do is to clean the inside of the throttle body:

Remove the intake hose from the T/Body, disconnect the battery, use a can of air intake/throttle body cleaner and a brush, open the throttle all the way and clean the carbon out, put the hose back and reconnect the battery, start the engine and keep the rpm up until it clears out, drive it for about 15 minutes, about 90% of the time this fixes low idle.

Feb 15, 2015 | 2006 Toyota Corolla

1 Answer

Vibrations during idling


which engine.??? never post lacking engine ,here is why.
1.3 L G13B I4
1.5 L G15A I4
1.6 L G16B I4
1.8 L J18A I4
1.8 L BP-ZE I4
1.9 L XUD9 diesel I4

Ill answer in the generic and for GAS engines. only.
that is illegal RPM, the ECU regulates it to 800 all the time
that means the ECU can not regulate the RPM now, for many reasons.
and sure it vibrates too low, that is normal for all 4cylinders to do that.
no bad engine mounts never lower RPM to 600, ever.
they dont control idle speed at all.
the #1 reason for most cars to idle too low are:
1: EGR leaks, (clean it)
2: ISC stuck closed (electric idle speed acututor dirty) clean it.
3: gross misfiring , caused by bad spark or bad fuel mix.
4: low compression on 1 or more cylinders (real low) Do compression test at WOT. throttle.



Apr 19, 2014 | 1997 Suzuki Baleno

1 Answer

Idle fluctuating rpm check engine light


run the fault codes as the engine idle is being affected by a faulty sensor . The vibrations are probably because the idle rpm's are too low.

Mar 11, 2014 | Toyota Corolla Cars & Trucks

1 Answer

2002 escape 3.0 idle fluctuates and misfires when driving


No such thing as a tune-up

All you did was replace spark plugs which should be
done every 3 years

Oxygen Sensors get replaced at 100,000 miles which you
also did

You most likely have an intake gasket leak,smoke test
the entire Evap System & Engine

You also are have bad igniton coils

Jan 18, 2013 | 2002 Ford Escape

1 Answer

2008 Saab turbo at idle with vibration?


The only thing I can this is a vacuum leak, either a hose or egr valve.

I hope this helps!

Nov 06, 2012 | 2008 Saab 9-3 2.0T

1 Answer

This rough idle business; With the AC on at a stop, the idle is about 600 to 700 rpm and vibrates the cabin. Can the dealer change a computer setting to correct this?


Problem on focus too . Without A/C on it idle's smooth . With A/C on the PCM - engine computer should raise the idle rpm. 850 . The only way to raise the idle would be to have PCM flashed programmed with up dated software . Adjusting the idle anyother way would cause check engine light problem , Wouldn't be able to get it to go out. Your best bet ,take it to the ford dealer and have the PCM reflashed .

Sep 14, 2017 | Ford Escape Cars & Trucks

2 Answers

Why is my car is vibrating when i started the engine?


Hi.

Check that there is spark on all cylinder from start. A cylinder not firing when you start the engine will result in vibration. Regarding this check sparks, cables, distribution, injector pulses, camshaft position sensor and timing and other factors that may cause misfire. Do an ODBII code scanning.

Check lower engine mount. Check crankshaft position sensor. A defective sensor may result in vibration.

Regards.

Ginko

Aug 22, 2011 | Nissan Sentra Cars & Trucks

3 Answers

Hi I drive a 2006 corrolla with 70,000 miles. I noticed the idle slowly but surely gettin a litttle rough and lower. This only starts to happen after I have been driving for about 5 min. It usually happens...


It's been almost 2 years since you posted the question so it's likely you will not see my answer to your question.

First, do NOT make any adjustments to your throttle body idle setting. The screw most likely never budged since 2006 so you should not touch it since this is not the root cause. But yes it is wise to check all vacuum lines as "craig" suggested.

I have a 2007 Corolla CE, 1.8 liter VVT engine, 5 speed manual transmission which I bought new from the dealer. Currently has about 108k miles on it. After about 4 or 5 years in cool to cold weather it started doing the same thing. I researched it online then asked my local Advance Auto Parts person who confirmed my hunch. It is known as "idle hunting" when the engine is cold, in colder outside temperatures the idle rpm's will increase up to roughly 2000 rpm then drop to idle, then back to 2000 rpm, then repeats multiple times. Then after driving a short distance, stopping and running at idle, the idle speed may drop to 600 or 500 or as low as 400 rpm, running quite roughly but still keeps running. My Corolla normally idles smoothly and steadily at 800 rpm when warm or hot. The idle hunting or low idle rpm will typically correct itself when the engine warms up enough.

The problem: the intake manifold gasket has aged and shrunk a bit, allowing engine compartment air to get pulled directly past the gasket and into the cylinder head intake port. This causes an imbalance between the reduced air filter airflow sensed by the Mass AirFlow (MAF) sensor versus the actual air/fuel ratio versus the engine rpm versus the oxygen level in the exhaust stream. The gasket will shrink more as the temperature under the hood drops, allowing more air to flow past the gasket. The Engine Control Unit (ECU) is simply trying to do its job as programmed by increasing fuel delivery to compensate for the overall imbalance, then when rpm's get too high it will reduce fuel delivery.

The solution: purchase a new intake manifold gasket for roughly $10 to replace the stock gasket. Mine is a thin orange polymer gasket with round cross-section which seals around all 4 intake ports. You can search for instructional video of how to install it on YouTube.

I purchased one but did not install it yet. I am sure this will resolve the problem since all other suggested fixes I found on the internet did nothing but unnecessarily frustrate the owners.

Apr 03, 2011 | Toyota Corolla Cars & Trucks

2 Answers

2004 Honda Civic -Code P0122 Throttle Position Sensor Voltage Low


yes, this is the case of a failed throttle body, in which case it needs replaced, the car is getting too much fuel causing the high idle. this needs replaced asap. you could proably find a small independant honda shop that could do the work for less.

May 12, 2009 | 2004 Honda Civic

1 Answer

93 cavalier vibrating


your probably feeling a rough idle of the engine. need a tune up?

in park the engine is not loaded down, just idling at a low rpm=rough
in drive with brake on you have put some load on motor also at low rpm=rough
in drive on the road engine is at higher rpm, = smoother

generally 4 cylinder motors idle a bit rough, especially if one spark plug is not firing right or fouled or one bad spark plug wire. tune up may fix it. if it is not stumbling real bad or stalling then you can live with it.

Nov 22, 2008 | 1999 Chevrolet Cavalier

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