slight misfire help/advice pls
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slight misfire help/advice pls
just brought my new impreza 555 sti and drove it back about 230 miles and seemed fine apart from what feels like a slight missfire the car pulls well but as i say very slight but definatly there was going to check the plugs tomoz and see if there bad 1 also maybe coilpacks are there any other ideas people pls. hoping its not a valve so fingers crossed. also what the easiest way to change the plugs any help/advice would be much appriciated and thanks in advance
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just brought my new impreza 555 sti and drove it back about 230 miles and seemed fine apart from what feels like a slight missfire the car pulls well but as i say very slight but definatly there was going to check the plugs tomoz and see if there bad 1 also maybe coilpacks are there any other ideas people pls. hoping its not a valve so fingers crossed. also what the easiest way to change the plugs any help/advice would be much appriciated and thanks in advance
It's abit tight between the chassis legs but it not to bad as long you take your time,its easiest off your back with the under tray off get the car jacked up on the side your working on.
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thanks for that was gonna try the plugs first as the cheapest option what plugs should i fit ??? as used to run some really cheap plugs on my evo and ran as good as any others also could change them every month for the price????
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its easy to change the plugs from above, if you've got an induction kit fitted the offside 2 are easy and for the nearside just remove the washer bottle and you'll have enough space to get to them, plug wise pfr6b or pfr7b are the ones to use
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my plugs i used in my evo were used by some well respected tuners in the evo circle and were run on cars running around 600 bhp so im not convinced about the you get what you pay for story i will look into this befor buying anything personally but welcome opinions/advice
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as others have said, also if your car has the coil on plug type of coil pack then you must inspect them before you refit, to inspect them take the rubber boot off and inspect the end of the coil packs for cracks, which are obvious, or less obvious very faint hairline cracks which could cause your miss fire.
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plugs
my plugs i used in my evo were used by some well respected tuners in the evo circle and were run on cars running around 600 bhp so im not convinced about the you get what you pay for story i will look into this befor buying anything personally but welcome opinions/advice
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dropped car of tonight at garage for mot and general birthday just hoping not a valve causing the missfire but car looks well clean underneath so thats good also while under the car noticed that the 3" downpipe narrows quite alot just befor it meets the rear part of exhaust does this need sorting to make it a true 3" or not worth worrying about unless going for massive power ?
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