Question about 2000 Hyundai Accent

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The check engine light come on. The DTC is P1123.

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Posted on Jan 02, 2017

SOURCE: 1-DTC

Care to share the code or you Googled it already ?

Posted on Dec 01, 2012

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95 sl500 check engine light reset and comes back on after it sits over night. any idea?


What code is it throwing ? Some codes are what are called two trip codes ! You clear the codes an start an drive the vehicle ,no check engine light . Park the vehicle over night an bam next time you start an drive the vehicle the check engine light comes back on .

??There are two types of DTC's, 1 trip DTC's and 2

trip DTC's

??A 1 trip DTC is for a condition that requires

immediate attention such as a catalyst damaging

misfire.

??A 2 Trip DTC is one that a condition must be found

during 2 consecutive trips such as an EGR fault.

??Most Monitors do not set a DTC and light the MIL

when a vehicle fails a test for the first time during a

DRIVE CYCLE. If a test is failed on a second

consecutive DRIVE CYCLE the MIL will light and a

DTC is stored in the vehicles powertrain control
module (PCM).

Feb 07, 2016 | Cars & Trucks

1 Answer

Where is the obd2 connector location on holden ra rodeo v6


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Connect white (test lead) and black (ground lead) wires that are branched from harness approximately eight inches from ECM. After leads are grounded, the "Check Engine" light will flash the diagnostic trouble codes. The DTC's are indicated by the flashing CEL.
FLASH, FLASH, pause, FLASH, FLASH, FLASH = Code 23.
If only one diagnostic trouble code is stored, the DTC will repeat continuously until test leads are disconnected. If more than one diagnostic trouble code is stored, each DTC will repeat three times, starting with the lowest, then proceed to the next DTC. After all DTC's have been displayed, the pattern will repeat.I-MARK 84-85
Connect male and female test leads taped into wire harness near ECM. After leads are connected, the "Check Engine" lamp will flash the trouble codes. The DTC's are indicated by the flashing CEL.
FLASH, FLASH, pause, FLASH, FLASH, FLASH = Code 23.
If only one diagnostic trouble code is stored, the DTC will repeat continuously until test leads are disconnected. If more than one diagnostic trouble code is stored, each DTC will repeat three times, starting with the lowest, then proceed to the next DTC. After all DTC's have been displayed, the pattern will repeat.
86-87 Impulse located near the ECM connector, is used to actuate the Engine Control Module (ECM) trouble code memory within the module. Two terminals (A and C) of this connector are used to activate the diagnostic trouble code system in the ECM. With the ignition switch turned On, engine Off, connect a jumper wire between terminals A and C. The "Check Engine" lamp will begin by flashing a DTC 12. DTC 12 = flash, pause, flash, flash. There will be a longer pause and a code 12 will repeat two more times. This code indicates the self-diagnostic system is operating. The cycle will then repeat until the engine is started or the ignition is switched Off. In most cases, DTC's will be checked with the engine running since no DTC's other than DTC 12 or 51 will be present without the engine running. Remove jumper wire from ALDL connector before starting engine. Reconnect jumper wire after engine is running.

Throttle Body Fuel Injection

The ECM test connection is located under the center console.
A built-in, self diagnostic system will identify problems in the throttle body fuel injection system. When a problem is detected, the diagnostic system will illuminate the "Check Engine" light.
When the engine is started, the Check Engine light should turn off.. If the light remains lit, the self diagnostic has detected a problem. To determine where the problem exists, ground the "Test" terminal of the connector with the ignition On, engine Off and watch the check engine light. Each DTC will flash three times (lowest to highest).

Aug 21, 2014 | Holden Rodeo Cars & Trucks

1 Answer

Tra-for air leak age


http://www.engine-light-help.com/kia-check-engine-light.html
P1123 Long Term Fuel Trim Adaptive Air System Low - Read Our Article On Oxygen Sensor Codes For Help With This Kia Check Engine Light Code

Mar 27, 2013 | 2000 Kia Sportage

1 Answer

What is the orange dash light with check underneath it on 1993 nissan primera for


Sounds like you have a engine check light on ( engine management light ) you will need to take the car to a garage that have a computer to read the dtc stored in your car ecu , dtc ( diagnostic trouble code )

Feb 24, 2013 | Cars & Trucks

1 Answer

2001 hyundai accent gl 1.6L, p1123 code comes on, what do I have to do to fix it myself?


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.

Aug 27, 2012 | 2001 Hyundai Accent

1 Answer

O/d light blinks when driveing o/d seems to be engaged car has 198000 miles and runs very good also engine light is on


O/D light blinks, but with that the check engine light is ON.--- This will make your troubleshooting easier.When the check engine light comes on, and remains on, this indicates that there is error stored in your cars computer.---- Once the computer is scanned, you will get error codes, as per that error code it will point towards faulty part, which is causing the O/D light to blink.-------- Most probably the O/D light blinks, If a problem exists in No. 1 or No. 2 solenoids or speed sensors .
--------------- For car after 1995 it requires OBD2 tool and for car before 1995 it requires OBD1 tool.------- --------- You car will require OBD1 tool.There are very few auto parts store and repair centers who have OBD1 tool.In your case you required OBD1 tool.------ You can just contact local auto-parts store and they will guide you to the nearest store who has OBD1 tool.There you can get your car scanned.If there is error set in your cars computer, then you will receive the error code.As per error code it will point towards the faulty part causing this problem in your car.------------- -------------- The codes which you get is scanning will be mostly any of this following codes:--- DTC P0500 - Vehicle Speed Sensor Malfunction
. DTC P0750 - Shift Solenoid "A" Malfunction
. DTC P0753 - Shift Solenoid "A" Electrical Malfunction
. DTC P0755 - Shift Solenoid "B" Malfunction
. DTC P0758 - Shift Solenoid "B" Electrical Malfunction
. DTC P0770 - Shift Solenoid "E" (SL) Malfunction
. DTC P0773 - Shift Solenoid "E" (SL) Electrical Malfunction
. DTC P1520 - Stop Light Switch Signal Malfunction
. DTC P1705 - Direct Clutch Speed Sensor Circuit Malfunction
. DTC P1765 - Shift Solenoid Valve SLN Circuit Malfunction
. DTC P1780 - Park/Neutral Position Switch Malfunction
--------------- Now it all depends on what code you get, as per that you can replace the following part.------- This will help.Thanks.Helpmech.

Jul 07, 2011 | 1995 Toyota Camry

1 Answer

Check engine codes read: p1123, and p0128 what do I need to fix?


2001 accent gl 1.6, p1123 code comes on. how can I repair it myself?

Mar 16, 2010 | 2000 Hyundai Accent

1 Answer

Engine light on but the garage said no codes recorded


Whenever the 'CHECK ENGINE' light comes on, the ECU (Engine Control Unit) sets a Diagnostic Trouble Code (DTC). These codes identify the particular engine management system which caused the light to come on. At least there is 'FREEZE-FRAME' data stored and the associated DTC.

Oct 28, 2009 | 1996 Hyundai Accent

1 Answer

I have a 2000 model auto Hyundai accent, it has been not wanting to accelerate intermittenlty, is worse hwne car has been running for a while in traffic. We have found the error code as P1123, can you...


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

Sep 08, 2008 | Hyundai Accent Cars & Trucks

1 Answer

I have engine ligth on


3 weeks ago i fix a code p1123 it was maf sensor hope it help pierre

Jul 29, 2008 | 2001 Hyundai Accent

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