Code p1123 comes on
LONG TERM FUEL TRIM FUEL MIXTURE TOO RICH, POSSIBLE CAUSES FAULTY OXYGEN SENSOR, FAULTY FUEL PRESSURE REGULATOR,DIRTY FUEL INJECTORS STICK OPEN,OR ENGINE HAS MECHANICAL FAILURE FAULTY CYLINDER COULD HAVE LEAKING VALVE OR VALVES COULD HAVE INTAKE LEAK.
SOURCE: 2000 Hyundai Accent GL check engine
i just replaced the timing belt, and asked the garage to look at the transmission for me because i thought i was experiencing some subtle shifting problems. they told me the transmission looked fine, but i needed a new filter and fluid. the engine light didnt turn on til a couple weeks later tho. does this sound like a new filter and fluid would fix this problem?
SOURCE: i have a 2000 model
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:
PRIMARY COMPONENT:
Air/Fuel Control System
SECONDARY SENSOR(S):
Mass Air Flow (MAF) Sensor
Throttle Position (TP) Sensor
Intake Air Temperature (IAT) Sensor
Engine Coolant Temperature (ECT) Sensor
Oxygen Sensors
FAILURE CONDITIONS
If
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.
Details:
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
SOURCE: installing new brake pads on 2000 hyundai Accent GL
REMOVAL 
1.
Remove the lower bolt and lift the caliper assembly up and secure it with a wire or some other retaining method.
2.
Remove the pads.
CAUTION: Do not depress the brake pedal while disassembling the pads
INSPECTION
1.
Check the pads for wear or oil contamination and replace, if necessary.
•
The pads for the right and left wheels should be replaced at the same time. Never "drop" or intermix brake pad sets.
•
All four pads must be replaced as a complete set.
•
When replacing the brake pad, check for deformation. When replacing the guide spring, use a new one or the used one after cleaning away foreign material.
2.
Check the pad for damage or deformation.
Brake pad thickness:
Standard value: 9 mm (0.354 in.)
Service limited value: 2 mm (0.0787 in.)
INSTALLATION
1.
Install the pad clips.
2.
Install the pads onto each pad clip.
3.
Insert the piston in the cylinder using the Special Tool (09581-11000).
4.
Install the new pads. The shims are attached to each pad as illustrated
Be careful so that the disc or pad isn't contaminated by grease.
5.
Install the bolt and tighten to the specified value.
Tightening torque
Guide rod bolt: 22~32 Nm(220~320 kgf·cm, 16~24 lb·ft)
SOURCE: How do I recharge a ac on a 2001 Hyundai Accent GL
go to Walmart or autozone or napa for a complete recharging kit cause it comes with everything you need and the instructions; just don't over charge the system
SOURCE: Replacing bulb (Headlight) in 2000 accent GL
once you pop the hood, there should be a cover behind the light housing that you twist to open the backing.. inside the housing will be a spring lever that secures the bulb down... unhook the spring and disconnect the harness connecting to the bulb...
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