Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2014 Hyundai Veloster Base, Standard TransFACTORY OEM SERVICE PROCEDURE

Component Inspection

Visual Check
1. IG KEY "OFF".
2. Check physical condition of CMPS.
3. Check the projection of cam-shaft visually after remove the CMPS.
4. Is everything O.K?
  YES
  - Go to " 2 CMPS check" procedure.
  NO
  - Repair as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
CMPS check
1. IG KEY "OFF". (Don't disconnect sensors.)
2. Select "vehicle scopemeter" in the menu, and connect channel A of GDS with signal terminal of CMPS harness connector.
3. Engine start. And check the signal waveforms.
  Specification: Refer to SIGNAL WAVEFORM & DATA
  
  Fig 1: Checking Signal Waveform Of Camshaft Position Sensor
  Courtesy of HYUNDAI MOTOR AMERICA
4. Is the signal waveform within specifications?
  YES
  - Many malfunctions in the electrical system are caused by poor harness (es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage. So, check poor connections and the related circuit between ECM and component thoroughly. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Substitute with a known-good CMPS and check for proper operation. If the problem is corrected, replace CMPS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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