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code p 0117 refers to engine coolant temperature (ECT) sensor--circuit malfunction=== causes --coolant thermostat, wiring short to ground --wiring short to positive ---ECT sensor
code p 0440 refers to evaporative emission (EVAP) system--malfunction===causes hose connection/s---intake leak/s --EVAP canister purge valve
code p 1508 refers to idle speed control (ISC) actuator --open coil--open circuit ===causes --wiring--connections ---ISC actuator---ECM
as there are no common items between the three codes
I would be inclined to find an accredited service center that works on your make of car to have the codes and listed possible causes checked out
I suppose its possible the alternator stopped charging the battery enough at the low engine speed but then worked on the way home. The alternator will charge 12 - 13 volts at idle, but you could have enough accessories and the cooling fan running to use more voltage or amps than it is producing. Stopping at a traffic light for a couple of minutes does not hurt anything since the battery is usually fully charged. But idling for an hour or more with everything on could run the battery down. You might want to have the computer checked for codes even tho the check engine light may not have been on. Also have the alternator and battery tested again to see if something happened while in heavy traffic.
P0340 - Camshaft position sensor circuit malfunction.
P0457 - Evaporative emission control system leak detected (fuel filler cap loose/off)
There is a bulletin #0398 posted on 05/12/2003 for P0457 - Malfunction indicator lamp (mil) illumination with diagnostic trouble codes p0442, p0455, p0456, p0457, p1442 or check fuel cap lamp illuminated with diagnostic trouble code p0457.
I'd suggest checking with your local dealer, as it may be a fix that is covered by the dealer.
The check engine light is an error code take it to autozone or some such auto supply house they should hook up the error codes machine an let you know what the error is for free then you can go from there to get it repaired.
I hope that this helps you and please do not forget to rate/vote on my advice...
This code refers to the Idle Air Control Overspeed Error, I would clean the IAC, and if cleaning does not work I would replace it. It is located directly on top of the throttle valve on the intake manifold. Hope this helps, let me know.
I suggest replacing the O2 sensor(s). These detect the level of carbon monoxide in the exhaust, and at a certain level the exhaust is then returned to the engine to be reburned, then sent back through the exhaust, catalytic converter, then the muffler.
Take the code type to an auto parts dealer, and verify what the code is specifically referring to.
If the engine was idling (running) rough, also repalce the air filter, fuel filter, spark plugs<-- find out gap setting; plug wires, distributor cap and rotor (if equipped).
Also, if you haven't recently had the fluids changed, have them changed as well, as the filters for each and the gaskets if needed.
NOTE: if you smell an unusual smell coming from your car; the smell of rotten eggs or such, then your catalytic converter may need replaced.
Please let me know if you need further assistance.
P1506 error refers to Idle Air Control System Overspeed Detected.
So solution is check your Air control system wires,and check air control speed once again.
If this not solves your problem back with the result,leave a feedback we happy to help you.
the check engine light means that a code has been set. the code will reference a faulty system that must be diagnosed and repaired. sorry for the vagueness, but there are e gads of codes that can cause the rough idling
most aftermarket parts places will scan the car for free. this will give you an idea of where to start.
obdII P1123 is a error refer to Air/fuel controller OBDII P1123 Fuel Trim Additive, System Too Rich
the obdII P1123 is a error refer to Air/fuel controller
OBDII P1123 Fuel Trim Additive, System Too Rich
the following info is a copy/paste of HMA service:
Air/Fuel Control System
Mass Air Flow (MAF) Sensor Throttle Position (TP) Sensor Intake Air Temperature (IAT) Sensor Engine Coolant Temperature (ECT) Sensor Oxygen Sensors
the air/fuel mixture at idle is too rich for more than 30 seconds
during two back-to-back trips, this code will be set and the
Malfunction Indicator Light (MIL) will be turned on.
The code will be triggered if the following conditions are met:
Long term fuel trim value (additive) is less than -0.75 ms (-15% to -20%) for 30 seconds or more Engine speed is less than 880 RPM (1000 RPM, 2.0L Tiburon) Mass air flow rate is less than 6.1 g/s (7.5 g/s, 2.0L Tiburon) Engine coolant temperature is greater than 158°F (70°C) [176°F (80°C), Accent] Engine in closed loop operation No canister purge occurring