99 civic si misfiring on cylinder 3 and 4
12-23-2009, 06:08 PM
#1
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99 civic si misfiring on cylinder 3 and 4
any ideas?
injectors?
burnt valves?
anything will help. i have read several post of people with the same problem.
let me know how you fixed it.
injectors?
burnt valves?
anything will help. i have read several post of people with the same problem.
let me know how you fixed it.
12-23-2009, 08:09 PM
#3
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Re: 99 civic si misfiring on cylinder 3 and 4
i dont believe it has low compression or burnt valves because my spark plugs are white meaning they are not burning oil.
i just did a tune up tonight.
it just has a sluggish idle.
it doesnt miss a lick any other time.
my check engine light is blinking only on idle.
i hooked an obd to it and it read the cel codes: po303,po304.
im stumped on this issue.
i also dont drive the car hard enough to burn a valve.(its a four banger. no reason to act like it has horsepower by hitting high rpms.)
i just did a tune up tonight.
it just has a sluggish idle.
it doesnt miss a lick any other time.
my check engine light is blinking only on idle.
i hooked an obd to it and it read the cel codes: po303,po304.
im stumped on this issue.
i also dont drive the car hard enough to burn a valve.(its a four banger. no reason to act like it has horsepower by hitting high rpms.)
12-23-2009, 09:24 PM
#4
Honda-Tech Member
Re: 99 civic si misfiring on cylinder 3 and 4
i dont believe it has low compression or burnt valves because my spark plugs are white meaning they are not burning oil.
i just did a tune up tonight.
it just has a sluggish idle.
it doesnt miss a lick any other time.
my check engine light is blinking only on idle.
i hooked an obd to it and it read the cel codes: po303,po304.
im stumped on this issue.
i also dont drive the car hard enough to burn a valve.(its a four banger. no reason to act like it has horsepower by hitting high rpms.)
i just did a tune up tonight.
it just has a sluggish idle.
it doesnt miss a lick any other time.
my check engine light is blinking only on idle.
i hooked an obd to it and it read the cel codes: po303,po304.
im stumped on this issue.
i also dont drive the car hard enough to burn a valve.(its a four banger. no reason to act like it has horsepower by hitting high rpms.)
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