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11/10/2007, 12:47AM
Engine lacks power + poor fuel econ
Can anyone tell me how I would know if my engine is running rich? I seem to be getting below-average fuel economy out of my D16Z6. Also, acceleration is not consistent and the car sometimes lacks uphill power. Very rarely, it seems to misfire. I did a full tuneup not long ago, replaced the clutch/master/slave, and ran a bottle of fuel injector cleaner. I installed headers recently, but with a stock front pipe and cat. The O2 sensor looks new.
One idea I've been toying with is that the timing is off. Now I'm also wondering if I need a fuel injector or perhaps a new ECU.
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