Try cleaning the max flow sensor or if it has an air intake temperature sensor. These are located after the air filter box on the large flexible line. Use clean or that is safe for mass sensors available at auto parts store.
SOURCE: intake air temperature sensor 02 hyundai elantra
Yes...it is also called the MAP-Manifold Absolute Pressure sensor...
SOURCE: 2003 Hyundai Elantra - diable alarm
YES!... with various system operating difference. Disconnecting the alarm does not disable it.. it only silences the alarm. You will still need the Keyless Entry System Remote to RESET the alarm to start the vehicle.
SOURCE: P0139 code for a 2003 hyundai elantra. What is this code?
Hi the code P0139 is Bank 1 sensor 2 lambda sensor fault ,possible wiring or sensor fault even if you replace the sensor you need to have the MIL lamp turned off by a Diagnostic machine,it is possible you have another fault such as poor Catalytic converter efficency giving the same fault code ,Would recomend you get the car checked and read the "live" data as the car see`s it to make an accurate diagnosis and cure
SOURCE: what does the code p1166 mean for a hyundai
P1166 O2 Sensor - controller adaption diagnosis malfunction (bank 1).
Trouble area:
* P1166 is case for HO2S (Bank 1, Sensor 1) Signal line open
* Fuel system (Fuel tank/Pressure regulator/Fuel pump/PSV) failure
* Poor connection to fuel line hose/sealing/cut
* Sealing between purge valve and fuel tank
* Air leakage in exhaust system
* Ignition system (ignition coil, spark plug, cable) failure
* Surge tank and intake port failure
SOURCE: trouble code 1997 Hyundai Elantra, P1128
P1128 trouble code is for (Upstream Heated O2 Sensors Swapped). Did you switch around any of the O2 sensors?
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