Aug 172016

2001 Hyundai SonataI am working on my 2001 Hyundai Sonata 2.4l. I have been going over the wiring diagrams for the CMP sensor and it shows the number 3 wire going to the center of the sensor but is listed as number 3 and is a pink wire. Number one is showing as the top position and is the ground wire blk. And finally the number 2 wire is showing on the diagram as being in the bottom position on the sensor. But like I said it is listed as the number 2 wire and is blk with a blue strip. So I am confused. Does the pink wire go in the middle or at the bottom of the sensor?


cmp sensor connector diagram hyundai

Most wiring diagrams can be a bit confusing to read at times. This diagram is showing you what color wires they are and what number the wire is. The connector diagram tells you where the wire goes in correlation to the CMP Sensor. The connection goes as ordered in the above diagram. (thank you for providing the wiring diagrams).

  • Number one position in the connector is the ground wire
  • Number two position is the control wire connecting to the E/TCM(Engine /Transmission Control module)
  • Number three position is the pink wire connecting from the 15 amp EGR Fuse. This wire will be hot in ON & START position.

cmp sensor wiring diagram Hyundai Sonata 2.4L


2001 hyundai sonata 2.4 wiring diagram 001

CMP Sensor

A Camshaft Position (CMP) sensor consists of a permanent magnet, yoke and coil. The CMP sensor is positioned next to the cam gear. As each cam gear tooth passes the sensor magnetic pick-up an AC voltage pulse is induced in the coil. The PCM counts the number of pulses to determine the camshaft speed. And the number of pulses counted in one second is the signal frequency.

The camshaft position sensor signal is required to sequence the injector operation to the proper cylinder timing. If the camshaft position sensor or circuit is faulty, most engines will start.

Aug 042016

2003 Hyundai Sante FeRandomly will not start. The battery is good, and the ground cable is good, and I said it just is random and then any where from a few hours to day it will start.


If it is the engine not turning over to start you are mentioning, the problem would be the starter assembly. Replace the starter and it should be fine once more. The internal brushes become worn and no longer make good contact.

Jun 272016

2004 Hyundai XG350What is the location of EGR valve and location of down stream o2 sensors.


The EGR valve is located on top of the engine. The downstream O2 Sensors are located after the catalytic converter.


The Exhaust Gas Recirculation (EGR) system lowers the nitrogen oxide (NOx) emission level. When the air/fuel mixture combustion temperature is high, a large quantity of nitrogen oxides (NOx) is generated in the combustion chamber. Therefore, this system recirculates part of emission gas from the exhaust port of the cylinder head to the combustion chamber through the intake manifold to decrease the air/fuel mixture combustion temperature, resulting in reduction of NOx.
The EGR flow rate is controlled by the EGR valve so as not to dffect the driveability.
When the engine coolant temperature is low, the engine is at idle or when a wide open throttle operation is performed, the EGR valve is kept closed, allowing no EGR.
In normal vehicle operation, after the engine has warmed up, the EGR valve is opened to carry out EGR.
In addition, the engine control module monitors the EGR system and illuminates the check engine/malfunction indicator lamp to let the driver know that there is a malfunction.
EGR 2004 Hyundai XG350
Jun 242016

2003 Hyundai Sante FeHad a spudder, changed plugs and wires, still spudder, notice ignition coil spitting fire, changed all three, spudder got worse, when i unplugged something by the breather hose and will run smooth but wont accelerate and stall out, figure its a sensor but not sure which one.


It is hard to say without looking at it. There are many sensors on this engine. However the check engine light should be illuminated with such a dominating spudder. There should be diagnostic trouble codes stored and will need to be extracted. These codes will help direct us to the problem. Post the codes below for more information.

Jun 242016

2004 Hyundai TiburonWill a 5 speed starter fit a 6 speed Hyundai Tiburon gt v6″ I need a new starter and they only have the 5 speed in stores.


The Starter for the 2004 Hyundai Tiburon GT with the 2.7L engine no matter the transmission is the same. I double checked this starter for less than $60 to fit your vehicle. Follow the image for more details…

The starting system includes the battery, starter motor and solenoid, ignition switch, circuit protection and wiring connecting all of the components. An inhibitor switch located in the Transmission Range (TR) sensor is included in the starting system to prevent the vehicle from being started unless the transmission is in PARK. A similar function is performed by the clutch switch in manual transmission vehicles.

When the ignition key is turned to the START position, current flows and energizes the starter‘s solenoid coil. The solenoid plunger and clutch shift lever are activated and the clutch pinion engages the ring gear on the flywheel. The switch contacts close, and the starter cranks the engine until the engine starts.

To prevent damage caused by excessive starter armature rotation when the engine starts, the starter incorporates an over-running clutch in the pinion gear. This disengages the starter motor from the engine when the engine begins to run on its own.

Starter Replacement 2004 Hyundai Tiburon

Jun 082016

Code P2251 Hyundai ElantraI have Engine code p2251 on my 2004 Hyundai Elantra, what could be the cause? I also have codes po507 po301


Engine Code P2251 HYUNDAI – O2 Sensor Reference Ground Circuit/Open Bank 1 Sensor 1

The linear O2 sensor is mounted on the front side of the Catalytic Converter (warm-up catalytic converter) or in the front exhaust pipe. It detects a wide range of air/fuel ratios in the exhaust gas from the rich to lean regions. This linear O2 sensor produces a current that corresponds to a specific air/fuel ratio. The Powertrain Control Module (PCM) monitors this signal and determines whether the air/fuel mixture is rich or lean. The PCM constantly monitors the linear O2 sensor and increases or decreases the fuel injection duration using this signal. This is called closed-loop fuel control operation.

Possible causes
– Faulty Heated Oxygen Sensor Bank 1 Sensor 1
– Heated Oxygen Sensor Bank 1 Sensor 1 harness is open or shorted
– Heated Oxygen Sensor Bank 1 Sensor 1 circuit poor electrical connection
P2251 Hyundai Description


Code P0507 – Idle Control System RPM Higher Than Expected
If there are no intake leaks, clean throttle body, adjust engine idle and erase engine code. If the code comes back you may have to replaced the Electric Throttle Control Actuator (Motor) to repair the problem.

Possible causes
– Dirty throttle body
– Electric throttle control actuator mis-adjusted or damaged
– Faulty Electric throttle control actuator
– Intake air leak
– Poor electrical connection to the Intake Air Control (IAC) valve

Code P0301 – Cylinder 1 Misfire Detected

The P0301 code means that the cylinder 1 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 1. If the problem persist more tests needs to be done to diagnose problem.

Possible causes
– Faulty spark plug 1
– Clogged or faulty fuel injector 1
– Faulty ignition coil 1
– Fuel injector 1 harness is open or shorted
– Fuel injector 1 circuit poor electrical connection
– Ignition coil 1 harness is open or shorted
– Ignition coil 1 circuit poor electrical connection
– Insufficient cylinder 1 compression
– Incorrect fuel pressure
– Intake air leak



Jun 012016

My brake lights will not turn on, I have changed the light bulbs, checked the fuses. My third one is functioning properly, so I know it’s not the brake lamp switch. Just not sure what else to do.


You are correct, since the third brake light is coming on it leaves you with either a wiring issue, socket issue or bulb issue. Use the wiring diagram provided to help assist you in tracing the problem.


Jun 012016

2013 Hyundai AccentEvery time I turn on my right blinker when my headlights are on, the brights also turn on, only when I turn on my right blinker. Help me! Thanks.


Most common reason would be a faulty Multi-Function Switch(turn signal lever)

May 022016

Change Transmission FluidI need to change transmission fluid on my 2003 Hyundai Sante Fe 3.5L. It has a plug at the bottom of the transmission. Do I still have to change the filter. The pan is side mounted. I purchased a filter and it resembles a oil filter. Now if I have to change the filter will it be located under the transmission pan as other vehicles. And what size metric wrench do I need to remove the transmission plug


It is recommended to change transmission fluid and filter every 105,000 miles under normal conditions and every 30,000 miles under severe conditions(heavy towing). Fluid level should be checked every 12 months or 15,000 miles.

The Filter is mounted externally, not under the pan. The removal of the side mounted transmission pan is not necessary. Not sure of the exact size bolt. If I had to guess it would be a 13mm or 15mm. You may use a bolt measuring chart to help identify the size.