How to Replace Output Sensor?

How to Replace Output  Sensor?

 

2010  G 1.6 DOHC  Transmission  Automatic Transaxle  P0722 A/T Output speed Sensor Circuit - Open or Short(GND)

Study Guide and Component Location Study Guide and General Description Study The Output Speed Sensor outputs pulse-signals according to the revolutions of the output shaft of the transmission. Study The Output Speed Sensor is installed in front of the Transfer Drive Gear to determine the Transfer Drive Gear rpms by counting the frequency of the pulses. Study This value, together with the throttle position data, is mainly used to decide the optimum gear position. Study Guyide and DTC Description Study The TCM sets this code if the calculated value of the pulse-signal is noticeably different from the value calculated, using the Vehicle Speed Sensor output, when the vehicle is running faster than 30 km/h. Study The TCM will initiate the fail safe function if this code is detected. Study Guide and DTC Detecting Condition Item Detecting Condition Possible Cause DTC Strategy Study ● Speed rationality check ● Signal circuit is open or short. ● Sensor power circuit is open ● Sensor ground circuit is open ● Faulty OUPUT SPEED SENSOR ● Faulty PCM Study Enable Conditions ● Battery Voltage ≥ 10V ● Lever position : D,3,2,L ● State of brake : OFF Study Threshold Value ● Output speed = 0 Study Diagnostic Time ● More than 1sec Study Fail Safe ● Locked into 3rd or 2nd gear. ● Manual shifting is possibe(2 nd → 3 rd ,3 rd → 2 nd) Study Specification Input shaft & Output shaft speed sensor ● Type : Hall sensor ● Current consumption : 22mA(MAX) ● sensor body and sensor connector have been unified as one. Signal Waveform

2010  G 1.6 DOHC  Transmission  Automatic Transaxle  P0722 A/T Output speed Sensor Circuit - Open or Short(GND)

Study Guide and Terminal and Connector Inspection 1. Study Many malfunctions in the electrical system are caused by poor harness and terminals. Faults Study can also be caused by interference from other electrical systems, and mechanical or chemical damage. 2. Study Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. 3. Study Has a problem been found?   YES 1) Repair as necessary and go to "Verification Vehicle Repair" procedure   NO 1) Go to "Signal Circuit Inspection" procedure Study Guide and Signal Circuit Inspection 1. Study Ignition "ON" & Engine "OFF". 2. Study Disconnect the "OUTPUT SPEED SENSOR" connector 3. Study Measure voltage between terminal "2" of the OUTPUT SPEED SENSOR harness connector and chassis ground. A. Specification : Approx. 5V 4. Study Is voltage within specifications ?   YES 1) Study Go to "Power Circuit Inspection" procedure   NO 1) Study Check for open or short in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure 2) Study If signal circuit in harness is OK, Go to "Check PCM/TCM" of the "Component Inspection" procedure. Study Power Supply Circuit Inspection 1. Study Ignition "ON" & Engine "OFF". 2. Study Disconnect the "OUTPUT SPEED SENSOR" connector 3. Study Measure voltage between terminal "3" of the OUTPUT SPEED SENSOR harness connector and chassis ground. A. Specification : Approx. B+ 4. Study Is voltage within specifications ?   YES 1) Study Go to "Ground Circuit Inspection" procedure   NO 1) Study Check for open in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure Study Guide and Ground Circuit inspection 1. Study Ignition "ON" & Engine "OFF". 2. Study Disconnect the "OUTPUT SPEED SENSOR" connector 3. Study Measure resistance between terminal "1" of the OUTPUT SPEED SENSOR harness connector and chassis ground. A. Specification : Approx. 0 Ω 4. Study Is resistance within specifications ?   YES 1) Study Go to "Component Inspection" procedure   NO 1) Study Check for open in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure 2) Study If ground circuit in harness is OK, Go to "Check PCM/TCM" of the "Component Inspection" procedure

How Coolant Temperature Sensor Affects Engine Performance?

How Engine Coolant Temperature Sensor Works?

Description

Some causes of trouble in car for Example engine stalling is also coming from ECTS malfunctioning.due to this sensor it control the fuel delivery thats why there is engine stall.

Engine coolant temperature sensor (ECTS) is located in the coolant passage of the cylinder head for detecting the engine coolant temperature. The ECTS uses thermistor whose resistance change with the temperature.The electrical resistance of the ECTS decreases as the temperature increases, and increases as the temperature decreases. The reference 5V of the ECM is supplied to the ECTS via resistor in the ECM. That is, the resistor in the ECM and the thermistor in the ECTS connected in series. When the resistance value in the thermistor in the ECTS change according to the engine coolant temperature, the output voltage also changes. During cold engine operation the ECM increases the fuel injection duration and controls the ignition timing using the information of engine coolant temperature to avoid engine stalling and improve drive ability.

Trouble Study & Please leave as comments

How to check why my car head light weak.

There are some causes why your car head light weak unless you accelerate the accelerator to rise up the RPM. Due to weak battery, poor contact of battery post to cable, defective alternator.

How to check why my car head light weak?

Model: Hyundai Sonata NF

Year Model: 2009

Fuel: Gasoline

Displacement: 2400cc

Subject: Weak a/c blower and weak lights unless accelerate to make bright.

1) Condition

1. A/C blower
2. Weak lights

2) Cause

1. Due to weak alternator charging.

3) Diagnosis

1. Scan tool check = No trouble code.
2. Check for current data = battery voltage is only 12 volt.
3. Check battery with battery tester = Good battery.
4. Check for wire connection,poor contact or corroded.= Ok
5. Check alternator pull out and put new one.
6. Check again with scan tool = Ok 13.7 Volt

4) Repair Guides

• Replace alternator assembly.

more study

How to check ECTS (Engine coolant temperature sensor).

Hyundai coolant temperature sensor is also one of the most important in you car today, it control fuel and serve as switch for cooling system.

How to check ECTS( Engine coolant temperature sensor)

The engine coolant water temperature sensor is located in the engine coolant passage of the cylinder head. it detects the water temperature and relay signal to the ECU. it employs a thermistor, which i sensitive to changes in temperature. The electric resistance of a thermistor decreases in response to temperature  rise. The ECU judges engine coolant temperature by the sensor output voltage and provides optimum fuel enrichment when the engine is cold.

 Troubleshooting Hints

When idling speed is not appropriate or blacksmoke arises it is likely to be a defect of water temperature sensor.

Wiring harness inspection     

Refer to P0117, P0118

USING SCAN

Check item                   Data display            Check conditions            coolant temp.    set valve

water temperature       sensor temp.         ignition switch:on or        -20*c               -20*c
sensor                                                 engine running                   0*c                0*c
                                                                                              20*c                20*c
                                                                                              40*c                4o*c
                                                                                               80*c               80*c

Using multitester

1. Removed the water temperature from the engine coolant passage of the cylinder head.
2. With temperature sensing portion of the engine coolant temperature sensor immersed in the hot water check resistance.
   
   1) WTS Sensor.
   
   Temperature (*C)                                            Resistance (Kilo Ohms) 
          -40                                                        48.14
          -20                                                        14.13~16.83
            0                                                         5.790
           20                                                        2.31~2.59
           40                                                        1.148
           60                                                        0.5865
           80                                                        0.3222
          100                                                       0.1884
          110                                                 0.1451~0.1491
          120                                                      0.1163
   
   2) Gauge Unit
   
   Temperature (*C)                                          Resistance(ohms)
              60                                                       125
            85                                                   42.6~54.2
           110                                                  22.1~26.2
           125                                                      15.2
3. If the resistance deviates from the standard value greatly, replace the sensor.

Installation:

1. Apply sealant loctite 962T or equivalent to threaded portion.
2. Install water temperature sensor and tighten it to specified torque.
   Tightening torque : 3.0~4.0 kg.m
3. Connect the harness.

more study

How Air Flow Sensor Works?

Learn how to does air flow sensor works in your car, Its really really help full to every one who have car even you have no idea about technical but reading and reading a booklet about it someday you can tell ah.ah.ah.ah.ah.ah.ah.ah.ah.ah its easy. all car especially electronic today built in a airflow sensor.

How air flow sensor works and how to check it?

Air flow sensor (AFS)

MAF uses the features of sensor heater, after HOT FILM units calculate the intake air quantity, then send the signal to ECU. ECU decides the fuel quantity and ignition timing, and recognizes up hills and helps fuel quantity and over run air conditioner compensation , idle speed actuator MAF might be combined to measure the intake air temperature.

HOT FILM AFS OUTPUT FEATURES

Mass air flow (kg/h)                                                   Output voltage(V)
            10                                                                        1.2226~1.2398
            15                                                                        1.3552~1.3778
            30                                                                        1.6783~1.7146
            60                                                                        2.1619~2.2057
          120                                                                        2.7215~2.7762
          250                                                                        3.4388~3.5037
          370                                                                        3.8796~3.9511
          480                                                                        4.1945~4.2683
          640                                                                        4.5667~4.6469

TROUBLE SHOOTING HINT

1. When ignition switch is turned on, if AFS output voltage is not 0(Engine stops), inspect the malfunction of AFS and ECU.
2. Even though AFS output voltage is abnormal, if engine is at idle, inspect the following condition. 
   1) Heck the poor attachment of airflow, cut the air duct, and air cleaner filter branched from AFS.
   2) Bad combustion in the cylinder or fault injector.
3. Even if no AFS malfunction occurs , check the mounting direction of AFS.
   Note:
   = Use correct voltmeter.
   = Before inspection, warming up the engine till the engine coolant temperature is up to 80 ~90*c

trouble study

How Does CVVT Works to the Engine?

General Description:
The CVVT( Continuously Variable Valve Timing) System is installed to the chain sprocket of the intake camshaft. This system controls the intake camshaft to provide the optimal valve timing for every driving condition. The ECM controls the oil control valve (OCV), based on the signal output from mass airflow, throttle position and engine coolant temperature. The CVVT controller regulates the intake camshaft angle using oil pressure through the OCV. As Result, the relative position between the camshaft and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves, exhaust emission decrease under driving conditions.
DTC Detecting Condition
Item                 Detecting Condition                               Possible Cause =DTC               = Determines if CAM target is aligned    =loosened CKPS
Strategy          correctly to crank                              = Timing misalignment
=Enable           =No active faults                                                   
Conditions        =Fully warm up at idle                        
= Threshold       =Case 1                                           = 1teeth misalignment at 80 *C(176 *F)
value                                                                      Temperature<90*C(194*F)
= Case 2         = 2 tooth misalignment ot lower than   
                       80*C(176*F) or Higher than 90*C(194*F)
=Diagnosis       = Continuous(within 1 min.)
Time
= Mil On          = 2 driving cycles
Condition
Specification:
Engine oil Temperature:                                                                  Misalignment: 80*C(176*F)<90*C(194*F)                   1 Teeth
Info to Charging System

General information Hyundai Trouble Code

General Description of Hyundai Sonata.

P0221 Electronic Throttle Control.

The Electronic Throttle Control(ETC) system is made of the components throttle body, throttle position sensor (TPS) 1 & 2 and Acceleration Position Sensor (APS) 1&2. TPS 1&2 sharing the same source voltage and ground. The throttle valve opening is control by throttle motor which is controlled by Engine Control Module(PCM). The opposite position indicator shows inverted signal characteristics. TPS 1 output voltage increases smoothly in proportion with the throttle valve opening angle after starting.TPS2 output voltage decreases in inverse proportion with the throttle valve opening angle after starting. TPS provides feedback to the PCM to control the throttle motor in order to control the throttle valve opening angle properly in response to the driving condition.

DTC Checking Condition:

DTC Strategy:

• Plausibility check between TPS1 and TPS2.

Enable Condition:

• No engine stop and engine start.
• No TPS adaptation request.
• No relevant failure.

 Threshold Value:

• An absolute value of TPS1 - TPS2 > 7.6%.              
  
  

Trouble Code:

Sensor and Touble Code

1) P0341 - Camshaft Positon Sensor Circuit Range/Performance.
2)P0343 - Camshaft Position Sensor Circuit High Input.

Description:
Piston position on combustion chamber is the substantial to define the starting of injection timing. All engine pistons are connected to crankshaft by connecting rod. CPS Crankshaft  Position  Sensor senses the information concerning all piston positions and uses this signal to calculate the injection timing and engine speed. Camshaft position sensor (CMPS) Senses the position of camshaft in reference to the upper dead point of compression cylinder and sends this signal, based on w/c the ECM determines the injection sequence of each cylinder and the fuel injection timing

P0016 crankshaft and camshaft correlation.

The cvvt (continuously variable valve timing) system is installed to the chain sprocket of the intake camshaft. This system controls the intake camshaft to provide the optimal valve timing for every driving condition. The ECM controls the oil control valve (OCV), based on the signal output from the mass air flow, throttle position and engine coolant temperature. The CVVT controller regulates the intake camshaft angle using oil pressure through the OCV. As result, the relative position between the camshaft and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves, exhaust emissions decrease under overall driving conditions.

About Tech at Blog

So many times that i think about blogging or posting some past experiences but i really don't know how to create a blog.Some friends talked about this kind of hubby and i inspired to do it even do i have some struggle.i have no enough knowledge on computer. English terminologies.But i always think about the others can so i can also by the guidance of our God in heaven.
So why Tech at Blog? what is this all about?
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