Injector cleaners
One reason an engine will 'ping' is due to carbon build up in the combustion chamber.
Injector cleaners will slowly disolve those deposits away. And will clean the injector too. A dirty injector does not allow for the proper spray pattern, or amount of fuel flow. That will cause the effected cylinder to not perform properly, and throw off the balance of power.
Also, a dirty injector can cause fuel pressure to bleed down when the engine is off, thus causing hard starts, and flooding on the effected cylinder.
I recommend Techron because I've read several studies, and it is at the top. And you can buy it at most parts stores, and Walmart.
If you've never added any cleaners, then add 2 bottle to a full tank the first ime, then 1 bottle every 3-4 months.
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Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing.
TEMS, and some nice MODS. Sold to a friend 10/08/08.
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