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P0300 Diagnostic Code - Random Misfire
Symptoms.
Engine may stumble or miss
Engine may be hard to start
you may notice no issues
Cause
Failing spark plugs or spark plug wires
Bad coil or coil pack
Failing oxygen sensor(s)
Bad fuel injector or more than one
Stuck exhaust valve
Bad catalytic converter
EGR valve or valve passage clogging
Bad camshaft position sensor
Bad PCM or ECM
The Fix
Best first action is a tune up, new plugs, wires, inspect all hoses and wire connections then reset the code. If it returns you will need to narrow it down to a system, coils and coil packs should be tested, catalytic converters for function ( do you smell rotten eggs?). A misfire that jumps cylinders could indicate a lean condition, do you have any other codes along with the 300? this will help clue you in to the source, check valve function to make sure they are opening and closing fully.
This is probably pone of the most difficult codes to troubleshoot, so start with the basics and work your way into the more expensive options, in many cases a good old tune up solves the problem, back it up with a fuel system cleaning and see where you stand.
What else can I help you with?
How many kL are in 43L?
.043
How many liters in 43ml?
.43L. 1000ml=1L
What transmission came in the 2002 43L s-10?
4L60/E l
Does a Chevy 305 mount to the same transmission as a 43L?
Yes it will bolt right up to it.
How can you calculate the mass or the volume of 18-k gold?
43L of 18-k gold
Where is the Oxygen Sensor on a 90 Caprice V6 43L?
There is one before and one after the catalytic converter.
Where can you check fuel pressure on a 1990 V6 43L Chevy Siverado?
The fuel lines around the filter; you will need an adapter.
How do you clean and adjust the throttle body on a 1991 Chevrolet S-10 blazer 43L is it the same as a carburetor?
There is no adjustment required, but you can clean it with a carb cleaner.
How do you replace a egr valve in a 1995 gmc jimmy 43L Engine?
remove the intake hose and the exhaust port screwed into the egr valve, the remove the two retaining bolts from the intake and clean any old gasket material away. if possible run a piece of wire down the hole to make certain the passage is clear of carbon build up
How do you change the stock single exhaust to dual on a 1994 43L Caprice?
Use an exhaust made for an LT1 engine the blocks are identical it is the insides that is different. Will bolt right on.
Where is the exhaust gas recirculation valve EGR located on a 97 s10 Chevy blazer 43L AC v6?
It should be on the front of the intake manifold directly above and behind the water pump.
Is there a thermostat 150 180 degree that will work in a Chevy S 10 V6 43L?
Don't know what year you have but some sensors are temperature sensitive and you should run a 195 degree thermostat.
