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What causes a 1999 Toyota camry to misfire after replacing spark plugs & wires?

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Old 11 Apr 2011, 02:39 am   #1 (permalink)
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Default What causes a 1999 Toyota camry to misfire after replacing spark plugs & wires?
What causes a 1999 Toyota camry to misfire after replacing spark plugs & wires?
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Old 11 Apr 2011, 02:54 am   #2 (permalink)
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throw it to garbage
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Old 11 Apr 2011, 03:09 am   #3 (permalink)
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Could be:















Clogged fuel filter/bad fuel pump ( causing low fuel pressure)















Bad ignition control module















Bad Ignition coil















Vacuum leak















Bad ECU















Worn Engine
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Old 11 Apr 2011, 03:25 am   #4 (permalink)
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did it misfire before the plugs and wires were replaced? if this is new, who ever changed the wires got in too big a hurry, common with overconfident mechanics, you know need to know the firing order of the engine, and the firing order of the cap. check make sure each one is on the right plug. mechanics with limited ezperience get over confident and yank all wires off, then screw up putting them on. When its so simple and a no brainer do one wire at a time, I have never crossed a plug wire there is no reason to but sloppy mechanic.
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Old 11 Apr 2011, 03:39 am   #5 (permalink)
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Either Spark plugs do not have the correct gap















or the wires are put incorrectly. IF you did it yourself go back and check your plugs















and wires you had to have put them in wrong. Shouldve labeled the wires if you didnt















know where to put them back and if it is spark plugs either you gave wrong info to















your parts supplier or they made mistake. If you took it to a shop take it back to the















and complain.
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