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Old 04-27-2010, 12:31 AM   #1
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Check engine light flashing

i was driving yesterday and everything was just fine, all of sudden i started loosing power and the check engine light started flashing, now its very hard to drive. i got it scaned at autozone and they said its missfiring in "cyclinder one" so it seems like its just sparkplugs are bad but im not an expert and want to make sure. also i was wondering should i also change my coils just in case? by the way the car is 2004 with 57,000.
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Old 04-27-2010, 12:33 AM   #2
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Spark plugs and coils are the best way to go.
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Old 04-27-2010, 11:59 AM   #3
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Jon is correct change them both, but don't forget to change the spark plug wires too. They get old and brittle and could be the problem.
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Old 04-27-2010, 12:43 PM   #4
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drastic: are you on the original plugs, wires, and coils?
If so, listen to the Jon and OR as those are most likely the culprits
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Old 04-27-2010, 03:08 PM   #5
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i believe im still on the same coils and sparkplugs since im the 2nd owner i dont really know for sure. but i already ordered the parts from rotoryfx. thanks alot for the feed back, i really appraciate it!!
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Old 04-27-2010, 03:42 PM   #6
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Let us know how it goes...
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Old 04-27-2010, 08:46 PM   #7
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I had the EXACT same problem yesterday, and like you took it to Autozone where they told me the EXACT same thing, Im sure for me its just the spark plugs or wires, I had the ignition coils all changed last month, Im with you buddy :/
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Old 04-28-2010, 08:29 AM   #8
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Did your car happen to trow smoke out the exhuast when that happened? Mine did the same thing but on cylinder 2 and it started trowing alot of smoke out the exhaust when it happned.
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Old 04-30-2010, 02:15 PM   #9
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no it didnt throw any smoke, just no power. really hard to drive. by the way im guessing the NGK spark plugs are pregaped right?
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Old 04-30-2010, 02:22 PM   #10
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correct, NGK's do not need to be gapped
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Old 05-01-2010, 10:44 PM   #11
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I changed the spark plugs and she ran fine, I dove around for about 20 minutes. I let it sit there for about 3 hours then when I was ready to drive again when it started stutturing again n died.. I'm getting coils on monday cuz that's my second guess. It's odd because the engine light flashes n stay on, the car baraly starts. My friend told me to check the coils by keeping the engine on n unplugging each one at a time to see if the engine dies and determine if it's good??? Would it over flood? Lastly my friend said I should check the crank sensor? Sorry it's so long but I'm confused!!
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05, 2008, blinking, check, chugging, club, drive, engine, flashing, light, line, mazda, red, rx8, shift

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