Have the multi-misfire code(P0300). changed plug and wire set. replaced the fuel filter. did a flush. cleaned the throttle body. adjusted the idler. it is running rough still. same code. when picking up speed it is a rough shake, when slower a rough idle. lose random raddled in the steering still mis-firing. what else can i do, without having to take it to a mechanic.
Not much you can do without troubleshooting the problem. It could be a crank sensor, ignition module, low fuel pressure, a vac leak, or a list of other things.
Usually if you have a sensor problem you will get a check engine light, but not always.
Testimonial: "what about the map sensor "
Any sensor or electrical component that acts up should set a code. Are you getting a check engine light ?
I would lean towards the ignition module or a fuel problem if you don't have any codes other than the 300 random miss.
There could be something clogging up the screen in the gas tank.
fuel is good and engine light is on got all fixed but idel now... checking in to tbs and the egr. really just doing proces of elimanation now
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SOURCE: 1997 2.2L base Cavalier idles rough and randomly stalls
Have they checked your TPS sensor as this is the most common cause for rough idles and stalls...
SOURCE: 2000 Camry 4 cyl 2.2L.
sounds like you have a problem with the spark the coil may be on its
way out or there may be oil in the spark plug holls shorting out the
spark.
your best bet is to pull the leads out 1 at a time and and look down
and check for oil if there is oil there get a new rocker cover gasket.
if no oil refit plug leads loosely and start the car remove one lead at
a time slowly and look at the spark cumming out the end off the lead is
it blue? if so it is ok if it is yellow and dull you have a coil
problem. also check that the spark is only coming out the end of the
lead as it may be coming out the side of the lead and shorting to earth,
you can do this by slowly moving the lead around the top of the spark plug holl and see were the spark is coming from
be carfull no to shock your self as it hearts like hell
good luck
SOURCE: 2000 toyota 4runner pulling a random misfire in
try a new crankshaft sensor not hard to change 2 bolts and a wire
SOURCE: 1997 chevy truck running rough
97 chevy 1500 4x4 replaces plugs wires cap rotor dist pick up and crank sensor truck run good when cold as soon it heats up and comes to stop it feels like it boggs down runs rough and stalls any idea what to do?
SOURCE: 2003 GMC Sierra Has recently developed
You never replace anything, on a Wishing,Hoping,Pushing,Poking,diagnostic approach
You learn the vehicles Systems,Test,then Replace,if you have a failed component.
Work on the Misfire Issues.
Then you lean O2 Codes will go away.
Not a the plugs.
Think lean---Vacuum leaks,EGR Valve leak,EVAP System leaks,anything with a hose that lets air into the intake system.
Exhaust System leaks,near sensors
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its crazy every time we put a new part on it it gets worse, if you go more than 40 mphs it starts rocking and shaking and bumping around, sundden kicks that leave no power cant even reach 20mphs
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