jbrickman0000
Tuner
I'm about to replace the plugs, wires, cap, and rotor on my 1998 Chevrolet Tahoe. When I do searches in auto-parts store web sites with local stores, there is an incredible variety of plugs: platinum (stock, reportedly), double-platinum, iridium, "power nickel" (whatever that means). And when I go wider, Ruthenium?. Some friends recommended capacitor plugs -- but then some others told me that they tend to fail all at once, rather than petering out. Splitfires seemed to do well for me in a different vehicle a long time ago, and there are obviously much wilder ones. Anyone got experiences to share?
I'm running her with one of these remapping computers now, which I imagine will be able to learn what to do if spark becomes a bit off-stock. OBDII says misses on cylinder 4 only so far. Have wondered about replacing just one plug, but seems more prudent to replace all, this engine has 214,000 miles, has generally run very nicely, and not clear that replacement has ever been done. The motivation for this replacement -- lowest idle being rough -- began some weeks before the computer went on, have already tried some very trusted engine cleaners.
I'm running her with one of these remapping computers now, which I imagine will be able to learn what to do if spark becomes a bit off-stock. OBDII says misses on cylinder 4 only so far. Have wondered about replacing just one plug, but seems more prudent to replace all, this engine has 214,000 miles, has generally run very nicely, and not clear that replacement has ever been done. The motivation for this replacement -- lowest idle being rough -- began some weeks before the computer went on, have already tried some very trusted engine cleaners.