Question about 1998 Nissan Pathfinder

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I changed spark plugs ,wire ,disturbator cap fuel filter, air flt

But i see catalac converter is so hot. and i hear some backfire noise.maybe i make a mistake while i am changing plugs and wire...i use platinim plugs.
thanks bharat patel

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  • Nissan Master
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Platinum plugs are good, but you may have to replace the one that is back firing. It sounds like you may have the the firing order mixed up causing detonation. Two or more if your spark plugs may be firing at the exhaust stroke, rather then the compression stroke. The firing order is 1-2-3-4-5-6 and on the passenger side you have 1-3-5 ( 1 ) being towards the radiator and on the drivers side  2-4-6 ( 2 ) being towards the radiator. The distributor cap should be labeled on the inside as to the #1 spark plug wire. The cap rotates counter clock wise and the #1 should be the drivers side towards the radiator. Good luck and hope this helps. Keep me posted, be glad to help.

Posted on Jun 22, 2009

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