Accent, Elantra & Tiburon Fuel Trim Codes

^ The "Long Term" Fuel Trim correction range is -25% to +25% on Accent, Elantra and Tiburon. If the "Long Term" Fuel Trim value exceeds -20% to +20% in two consecutive trips a code will be stored in the PCM.





^ P1123 and P1124 are set at idle, low load and low engine speed operation. Codes set in these operating conditions are sometimes referred to as additive Fuel Trim correction codes.

Note:
These codes are set when engine speed is less than approximately 1,000 rpm and the air flow sensor reading is less than 5 grams/sec.

^ P1127 and P1128 are set at moderate to high engine load and engine speed operation. These codes are sometimes called multiplicative Fuel Trim correction codes.