2001 Hyundai Accent NEED HELP

2001 HYUNDAI ACCENT
80,000 MILES • 4 CYL • FWD • AUTOMATIC
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PARKS9007
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  • 1 POST
I put a code reader on my 2001 hyundai accent and i got a lot of codes just hope somebody can help. The codes are 121 507 300 1124 301 303 302 442
Mar 15, 2009 at 12:28 PM
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ZACKMAN
  • CAR REPAIR CONTRIBUTOR
  • 4,202 POSTS
P0121 Mass Air Flow Sensor
P0300 Multiple Cylinder Misfire
P0301 Cylinder 1 Misfire
P0302 Cylinder 2 Misfire
P0303 Cylinder 3 Misfire
P0442 EVAP Emission System Small Leak Detected (Usually bad gas cap can set this off)
P0507 Idle RPM Not As Expected (Fix P0121 first)
P1124 Short Term Fuel Trim Lean (Fix P0121 first)

P0121 is actually a code for throttle position sensor resistance not matching Mass Air Flow sensor voltage. But the diagnostic says to check the MAF sensor, rather than the TP sensor. I would fix this one first, the rest will follow suit I believe. Except for the gas cap. You need to replace that.
Mar 20, 2009 at 12:18 AM
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