Quote:
Originally posted by nize
things to check;
1) are your plugs new? what brand/model are they?
2) are your plug wires new?
3) what's the condition of the distributor cap and rotor?
4) when were the injectors last cleaned?
you can have the injectors flow-matched and cleaned here;
http://www.witchhunter.com/
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The symptoms don't match anything to do with plugs. If the plugs were the problem, there'd be stumbling, etc.
The car's running rich, all the O2 in the combustion chamber is being used up before the fuel is and the excess HC, CO, and CO2 is being spit out the tailpipe. The readings that he posted are 100% consistant with a rich condition.