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E21 is mass air flow sensor signal circuit malfunction
E23 is Throttle Position Sensor signal circuit Malfunction


do a search in the forum for the "pedal dance" to clear codes,or if there is an OBD II connector under the cup holder can use an automotive code reader to clear them...another option is to unhook the battery...the time frame is much debated but try it for a half hour and see.....if the codes are still active and he problems haven't been resolved then they will just come back..
  • Posted 5 Nov 2013 06:59
  • By kevin_t
  • joined 2 Dec'10 - 1,301 messages
  • Pennsylvania, United States

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Fact of the week
In March 2002, identical twins in Finland died on the same day in similar accidents within hours of each other. A 70-year-old man was killed by a truck while cycling; hours later, his twin brother was killed by a truck on the same road, about a mile away, before the family had been informed of the first accident.
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Fact of the week
In March 2002, identical twins in Finland died on the same day in similar accidents within hours of each other. A 70-year-old man was killed by a truck while cycling; hours later, his twin brother was killed by a truck on the same road, about a mile away, before the family had been informed of the first accident.

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Fact of the week
In March 2002, identical twins in Finland died on the same day in similar accidents within hours of each other. A 70-year-old man was killed by a truck while cycling; hours later, his twin brother was killed by a truck on the same road, about a mile away, before the family had been informed of the first accident.