Component Location
General Description
IQA (Injector Quantity Adjustment) means adjusting fuel injection quantity difference between injectors which occurs inevitably at manufacturing process as allotting serial number consists of 7 letters to each injectors.
Inputting IQA code of injectors installed in each cylinder to ECM, ECM recognizes the fuel injection quantity difference between each injectors. ECM adjusts every injector to have same fuel injecting characteristic as recognizing specific fuel injection map which is different for each serial number.
DTC Description
P1671 is set when IQA data is not inputted to ECM during initialization of ECM.
DTC Detecting Condition
Item | Detecting Condition | Possible Cause |
DTC Strategy | ? EEPROM monitoring | ? IQA not inputted to ECM |
Enable Conditions | ? IG KEY "ON" |
Threshold Value | ? IQA code not inputted to ECM |
Diagnostic Time | ? Immediately |
Fail Safe | Fuel Cut | NO | ? Engine Check Lamp blinks. |
EGR Off | NO |
Fuel Limit | NO |
Check Lamp | BLINK |