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Have the same problem . codes po316 and po302 cyl mis fireing #2. Re placed coil over plug . replace injector. check injector with noid light for signal. check coil for primary signal..... all checks out.... Do a compression check or a leak down test. bad exhaust valve maybe . invest 2000.00 to have fixxed.
What else can I help you with?
Your 4 cylinder is misfiring what do you do to fix the problem?
First thing to do is replace the plugs and wires if you have not done so. It you have or if replacing them does not fix the problem then have a compression test run.
1996 Dodge Caravan misfiring?
Check spark plugs, plug wires, do a compression test
95 S10 pickup rough running and misfiring?
Check spark plugs and wires Do a compression test
After replaceing spark plugs wires and cap it still misfiring on a Chevrolet siverado?
I had this very same problem with my Chevrolet Silverado. The only thing that will cure this problem is replacing all your Oxygen Sensors and running premium fuel.
Do you replace coils when you change plugs and wires on 1998 ford expedition?
It is not necessary to replace the coilpacks as routine maintenance. At around $70 each, it is a significant expense. Replace only the boots that connect from the coilpacks to the plugs. I think JC Whitney has the boots for $4 each. Replacing the boots is equivalent to replacing the wires on an older car. Do not replace the small wires going to each coil. They are not high energy wires.
Do you have to change all your spark plugs if you are changing the spark plug wires?
No you do not need to replace any plugs at all when replacing wires.
Your 2002 Taurus is misfiring you changed all the plugs and wires but still getting the same code?
check the coil pack
Why is your 1991 Toyota Camry misfiring?
Check the spark plug wires and spark plugs. You might have to test coils too.
How do you you fix a p0303 on a Chevrolet astro?
Try replacing the plugs and wires
Misfiring in number 1 and 8 plug wires in a 1998 dodge ram 318 motor what can cause this?
plugs, wires, dist cap, injectors, internal engine......
What would cause a missfire in a 1999 Pontiac Firebird if you change the plugs and the wires?
A faulty ignition coil or module can cause misfiring.
How do you stop my 95 deville from misfiring?
Get a tune up. Replace cap and rotor, spark plugs, spark plug wires, and make sure the wires are in the correct firing order.
