I have Toyota corolla 4cly 1.8l EFI DOHC I have had a check engine light for 5 months I took the MAF sensor out cleaned it worked for a couple of hours then came back on, I have changed the spark pluge twice and now the car is taking long for it to start i have to pump the gas paddle a couple times to get it to start i also changed the Throttle Position Sensor and it is now slow when you start to drive it. I can hear it back fire in the engine area when I am driving it these are the codes i got . 11/11/2009 p0300 p0301 p0302 p0171
2000 Toyota Corolla ce Check Engine light.?
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