2000 Hyundai Elantra GT error code P1124 fuel trim adaptive air system too lean
2000 Hyundai Elantra GT error code P1124 fuel trim adaptive air system too
lean...How do I find the leak?
P1124 HYUNDAI - Long Term Fuel Trim Error System Lean... Possible causes... - Low fuel pressure - Fuel filter plugged - Fualty fuel pump - Engine mechanical condition - Large vacuum leak..... So check vacuum lines for cracks, snug up the intake manifold, make sure the throttle body gasket is good. Just check anywhere there is a main source of vacuum.