Diagnostic Aids

Water entering air intake and reaching MAF sensor can cause DTC P0103 to set. Water rapidly cools MAF sensor element causing PCM to receive an excessive airflow signal. Check air induction and secondary air injection systems for evidence of water intrusion. Poor connection at MAF sensor connector terminal "C" (Pink wire) may cause DTC P0103 to set.

If problem is intermittent, see INTERMITTENT TROUBLE CODE DETERMINATION  under SELF-DIAGNOSTIC SYSTEM.