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It is around 130,000 maybe more. Wires are NGKs and are like new, not to old either.
I have not taken the car to a gas analysis, I'm only concerned about this poor performance, when I step on the pedal the car won't respond inmediately and a moment later it will accelerate acceptably. Fuel economy has dropped about 10%. Injectors are clean too.
Could this be related to the O2 sensor? Or could be something else?
Do the tests done to the O2 sensor like varying voltage are done with the O2 sensor unplugged? Does it generate it's own voltage?
The car plug has black, green, white, gray wires (not really sure about the colors, can't remember) what's each wire for? Which one is the signal wire?
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