Tech Tip: Kia Constant Variable Valve Timing Oil Control Valve Inspection
This bulletin provides information related to the oil control valve (OCV) used in constant variable valve timing (CVVT) systems. If, at any time, the OCV is suspected as a cause of rough idling, poor acceleration, camshaft timing misalignment-related trouble codes, misfire-related trouble codes, etc., on a Kia vehicle equipped with a CVVT system, be sure to perform the OCV inspection procedure in this bulletin before replacement.
Kia Tech Tip: Check Engine Light Is On
The check engine light is on and there is a mass air flow (MAF) sensor range/performance code in the system. The engine will hesitate at times. The P0101 code is more of a rationality check. The MAF sensor signal isn’t rationally making sense comparing to things like throttle position and engine rpm.
Tech Tip: Kia Intermittent Hard Steering On Sorentos
This bulletin provides information relating to the service of the vehicle speed sensor and adapter cord. Sorento EX vehicles produced before Oct. 6, 2004, may intermittently have variations in the level of power assist during driving or parking. Diagnostic trouble code (DTC) C1012 may be stored in the EPS control module.
Tech Tip: Kia Check Engine Light Is On With MAF Sensor Code
Kia Rio’s check engine light is on and there is a mass air flow (MAF) sensor range/performance code in the system. The engine will hesitate at times.
Tech Tip: Kia Experiences Hesitation/MIL On, DTC P0123
Some 2001-’06 Optima models equipped with the 2.5L or 2.7L (V6) Delta engine and some Sportage models equipped with the 2.7L (V6) Delta engine, are applicable for this bulletin.
Tech Tip: Kia Constant Variable Valve Timing (CVVT) Oil Control Valve Inspection
This bulletin provides information related to the Oil Control Valve (OCV) used in Constant Variable Valve Timing (CVVT) systems. If, at any time, the OCV is suspected as a cause of rough idling, poor acceleration, camshaft timing misalignment-related trouble codes, misfire-related trouble codes, etc., on a Kia vehicle equipped with a CVVT system, be sure to perform the OCV inspection procedure below before replacement.
TPMS Signal Science: Why You Should Go Outside
As TPMS is becoming more common on vehicles, more misinformation is starting to develop as consumers and shops try to come to terms with the systems. One of the most misunderstood areas of TPMS is sensor signals. A sensor is a transmitter of information. It sends pressure and temperature information to the vehicle. Also, some signals include information identifying the sensor and the health of the battery.
TECH TIP: Outside Radio Signals Affects TPMS
KIA has received several inquires regarding TPMS light ON with or without Stored Diagnostic Trouble Codes in Memory. The following listed components/conditions may cause the control unit and wheel sensor communication to be interrupted and may cause multiple DTCs.
Tech Tip: Kia Has Intermittent MIL On with No Fault Code Stored
In affected vehicles, an intermittent short to ground in a circuit only intended for testing purposes may cause the MIL to illuminate and a DTC P1330 (Spark Timing Adjust) to be stored. As soon as the fault disappears, the MIL may turn off and the fault code can also be immediately erased by the engine management system, making it hard to diagnose the concern.
Tech Tip: Kia DTCs P0121/P01121 Set
This bulletin provides information related to the Throttle Position Sensor (TPS) for Sorento and Sedona models. Some Sorento and Sedona vehicles may exhibit diagnostic trouble codes P0121 and/or P1121. This condition mainly occurs in high ambient or desert areas, and can be related to the occasional increase in contact resistance due to excessive wear of the inner elements of the TPS. This bulletin describes the proper service and adjustment procedure for
Tech Tip: Kia Optima Won’t Rev, Sets Code P0350
On some Kia Optima vehicles, a P0350 code is set, indicating a faulty ignition coil circuit. At times the engine runs bad and won’t rev up; that is when it sets the code.
Tech Tip: Kia MIL Illumination with Front Heated O2 Sensor DTCS
If a 2004-’06 Spectra 2.0L exhibits an MIL on