Mitsubishi Airtrek. 2001 model. When starting the car after its been idle for 3 hours or more, rave count is quite low. When u press on the accelerator and let go the car turns off. I have to rave the car for about 5 mins without letting lettting it drop for. The tempreture gauge to go above C. Then it will be able to move without turning off. I changed the spark plugs and the fuel pump and also checked for Air clogs in the vents and vacuum pipes so now I am not sure what the problem is. A friend told me that there could be a second gdi fuel pump and that's the one I need to change. How true is that? And if not what could be the problem?
Iwould first try to change the fuel pump relays one is in the glove box and the other should be under the hood in a black junction box
SOURCE: i have a 2005 chevy impala 3.4l v6. I am getting
Basically this means that the the car's computer has detected that not all
of the engine's cylinders are firing properly.
A P0300 diagnostic code indicates a random or multiple misfire. If the last digit
is a number other than zero, it corresponds to the cylinder number that is misfiring.
A P0302 code, for example, would tell you cylinder number two is misfiring.
Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are
mis-firing, nor why.
Symptoms
Symptoms may include:
Causes
A code P0300 may mean that one or more of the following has happened:
Possible Solutions
If there are no symptoms, the simplest thing to do is to reset the code and
see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, check
all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending
on how long the ignition components have been in the car, it may be a good
idea to replace them as part of your regular maintenance schedule. I would
suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable).
Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic
converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter
needs to be replaced. I've also heard in other cases the problems were faulty
fuel injectors.
Random misfires that jump around from one cylinder to another (read: P030x
codes) also will set a P0300 code. The underlying cause is often
a lean fuel
condition,
which may be due to a vacuum leak in the intake manifold or unmetered air getting
past the airflow sensor, or an EGR valve that is stuck open.
For idle issue,click the help links provided below :---
Bad miss at idle? http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html---------- Engine stumbles coming off idle when warm?
http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html
--------------
While stop engine idles
like cylinder missing?
http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html
----------
Idle flair is noticed on car? Rough idle? car
will not idle? Erratic idle speed?
http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html
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High rpm in neutral? Inconsistant high RPM in
neutral?
http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html
---------
Erratic
idle on car?
http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html
--------------
Low idle when cold out
side?
http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html
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Idle Air Control (IAC) Valve Replacing?
http://schematicsdiagram.blogspot.com/2011/12/gmc-idle-air-control-iac-valve.html
-----------
intermittent engine failure while idle?
http://repairhelpcenter.blogspot.com/2011/10/1996-camry-intermittent-engine-failure.html
------------
Engine
quits at idle?
http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html
-------------
Car
overheats and Air blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
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Car
not starting or turning over indicates towards multiple possibilities. It can
be issue with battery or weak battery. But if battery checks out ok, then it
can be starter issue or faulty alternator or problem with low fuel pressure or
no spark at spark plugs due to dirty spark plugs or faulty ignition
coil or injectors getting cracked or dirty and needs to be cleaned.
To
confirm the problem, the basic troubleshooting is required.
Click
this link below and follow the troubleshooting:------
http://technoanswers.blogspot.in/2012/02/car-starting-issues.html
---------
This will help.
Thanks.
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