Question about 1999 Toyota 4Runner

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The 4runner is throwing 3 codes,#1 DTC code po302 cylinder 2 misfire detected freeze frame data fuel sys 1 cl calc load % 66.6 ect deg f 197 stft b1 0.7 ltft b1 10.1 iat 78 Po301 cylinder 1 misfire detected no data Po300 random misfire ive changed air filter, spark plugs, wires, cleaned MAP sensor, checked pcv looked good, changed rear o2 sensor, wasnt gicing a reading....im thinking maybe injetors? or injector wiring? maybe clogged cat? any help would be great....thanks oh yea i have an INNOVA 1303 scan tool with live data and DTC freeze frame

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  • Anonymous Mar 24, 2014

    I keep having a cylinder 4 misfire I have change the wire plug and injector but still have the issue any help would be great

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  • Toyota Master
  • 1,861 Answers

Replace the coil pack..

Posted on Dec 26, 2008

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