You might just pull those out and inspect them for deposits. . . .
Need to follow some rules to get the most value out of your time though.
With a warm engine, run it at near full throttle under a load (in gear pulling down the road) and then turn it off as quickly as you can safely pull over off the raod to a safe spot.
Remove the burning hot spark plugs and inspect them very closely.
If the tips of the electrode have tiny metal balls on them or the porcelain is bright white, they're too hot and will cost you gas mileage and engine performance. Because the modern engine checks for listens for cylinder detonation, you may not see the shinny little balls right away as the timing will retard if detonation is detected which will reduce this tendancy, but you should look for them.
If the above is not an option pull them after a brisk drive and look them over in the driveway. It should give you an idea to how things are looking. Compare to the chart below (link attached).
Regards,
73
>>
Tune Up, Spark Plug Condition link
Tune Up, Spark Plug Condition link
All,
Here a is link to identify various
spark plug conditions to aid you in your tuning and diagnostic trouble shooting.
http://www.ngksparkplugs.com/tech_su...ad.asp?mode=nm
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95 Cam, V6 1MZ, Auto A541E, LE >245,000 miles!
Camry 5SFE spark plug heat range
Linear Mode
