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Yes, "sparkling plugs" is definitely detrimental to idling or smooth running of an engine
replace the carburetor idle speed electrovalve. Should pay about $3.00 for a new replacement part.
A car that is stopped with the engine running.
it could be your timing is off
Check your spark plugs and leads.
A PCV or connecting hose problem can cause great issues with a 1997 Nissan pickup idling. In fact, this can keep it from running, even if it does start, and the engine turns over.
water in the fuel can cause an idling motor to sputter and/or die.
Vaccuum leak somewhere
A bad exhaust will cause gas fumes to get inside the Nissan Maxima while it is idling. Gas fumes, if contained in an enclosed space, is dangerous.
yes
You can buy inexpensive plug testers and use them simply by placing the receptor over each plug wire when the engine is idling. This will point out the faulty plug quickly
check the engine mounts