1999 Nissan Maxima SE idle problem
After the engine warms up, the car's computer lowers the rev's. When this
happens, the car starts to "bounce" around 600rpm. It causes vibration and
could become a big problem in the future. If anyone can help me diagnose my
car, I will be very much obliged. Also, there is no check engine light on,
so I can't diagnose that way.
1997 Infiniti I30 idling problem
PLEASE READ THE DESCRIPTION
This is the original description of the problem:
This is my 1997 Infiniti I30t. I am currently having an issue with it
idling while stopped and the car is in drive. It's hard to see in the video
but the rpms drop about 100 every 5-20 seconds and cause a sharp vibration.
It's very annoying and any help would be greatly appreciated.
UPDATE: 10-19-2010, the car is now fixed for good hopefully. I went to a
salvage yard and swapped out all of the coils for coils out of a low
mileage 1998 i30 that had been totalled in a wreck. The car runs amazing
now and I am very pleased with the results.
How To Clean a Mass Air Flow Sensor (MAF)
Here I demonstrate the simple steps involved with cleaning your mass
airflow sensor. In this particular case I was troubleshooting a rough idle
on a 2006 Chevy Colorado 3.5, but these steps can work for almost any
vehicle. If you have any questions feel free to post them and I will do my
best to help!
Here are some of the codes you might see related to your MAF:
P0100 Mass or Volume Air Flow Circuit Malfunction
P0101 Mass or Volume Air Flow Circuit Range/Performance Problem
P0102 Mass or Volume Air Flow Circuit Low Input
P0103 Mass or Volume Air Flow Circuit High Input
P0104 Mass or Volume Air Flow Circuit Intermittent
P0171 System too Lean (Bank 1)
P0172 System too Rich (Bank 1)
P0174 System too Lean (Bank 2)
P0175 System too Rich (Bank 2)
Bad Idle Air Control Valve PO505
The car is 99 Honda Odyssey with a code PO505. The code is for the idle air
control valve. I thought it was a vacuum leak but its not, what i believe
is the idle valve is damaged and is allowing more air than it should. As
you can see when i cover the opening in the throttle it idles just fine and
smooth. This problem came after we changed the transmission so I'm not sure
if I damaged it putting it back or something. I'm gonna clean it with break
cleaner but don't think it will do much and then I'll post the results.
**UPDATE** Cleaning the idle air control valve did not help. It was indeed
dirty but still faulty. I just replaced it and the problem is solved!
Camry Idle Air Control Valve Cleaning
This is my Father's 1999 Toyota Camry with the 3.0 liter V6 (1MZ-FE)
engine. About every three years, the Idle Air Control (IAC) valve always
gets clogged up causing the car to keep stalling when cold started unless
the accelerator was depressed while the engine warms up.
It's expensive to replace (someone quoted my dad $300) but I read that a
shot of carburetor cleaner down the hole usually takes care of the problem.
Idle Air Control Valve
A 101 on the idle air control valve, the component of the car that
regulates the amount of air that flows around the closed throttle plate.
Nissan Maxima QX - Большой тест-драйв (б/у) / Big Test Drive (videoversion)
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Сергей Стиллавин и Рустам Вахидов
протестировали почти 10-летнюю машину в
отличном состоянии. Пришлась ли по душе
Nissan Maxima QX ведущим «Большого тест-драйва»?
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Auto Repair : How Do You Clean or Check a Mass Air Flow Sensor?
A mass air-flow sensor is used on fuel-injected vehicles to tell the
computer how much air is going into the engine. Discover why a mass air
flow sensor must be removed in order to be checked with help from an auto
mechanic in this free video on auto parts.
Expert: J.B. Hebert
Bio: J.B. Hebert is a machinist, metal fabricator, and auto mechanic who
has been fixing and modifying all things mechanical for over 20 years.
Filmmaker: David Pakman