Hyundai Tiburon 2003 Workshop Manual page 204

Engine Coolant Temperature
Circuit Intermittent
P0121 Throttle Position Sensor Circuit
Range/Performance Problem
P0122 Throttle Position Sensor Circuit
Low Input
P0123 Throttle Position Sensor Circuit
High Input
P0125 Insufficient Coolant
Temperature For Closed Loop
Fuel Control
P0128 Coolant thermostat stuck
P0131 HO2S Circuit Low Input (Bank
1, Sensor 1)
P0132 HO2S Circuit High Input (Bank
1, Sensor 1)
P0133 HO2S Circuit Slow Responsive
(Bank 1, Sensor 1)
P0134 HO2S Circuit No Activity
Detected (Bank 1, Sensor 1)
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• Misplaced, loose or corroded terminals
• Foreign materials fouled ECTS
• Poor connections between TPS and ECM
• Misplaced, loose or corrodes terminals
• Contaminated, deteriorated TPS
• Open or short between TPS 5V reference and ECM
• Open or short between TPS signal and ECM
• Short between TPS wires
• Faulty TPS
• Short to GND between TPS and ECM
• Open short to GND between TPS and ECM
• Short to RND between ECM and fuel tank pressure sensor
(FTPS)
• Faulty TPS or FTPS
• Open or short to battery between TPS and ECM
• Open between and ECM
• Faulty TPS
• After engine start-up, the elapsed time before feedback
operation is initiated is too long (engine coolant temperature
sensor input is insufficient for closed loop operation)
• Poor connections between ECT sensor and ECM
• Faulty ECTS
• Thermostat
• Thermostat stuck opened
• Short to GND between HO2S and ECM
• Faulty front HO2S
• Short to battery between HO2S and ECM
• Faulty front HO2S
• Front and rear HO2S connections reversed
• Faulty fuel delivery system
• Leak in intake system
• Leak in exhaust system
• Faulty MAFS ground circuit
• Faulty HO2S
If any misfire, purge solenoid valve, MAFS or HO2S heater
codes are present,do all repairs associated with those codes
before proceeding with this trouble area.
• Contaminated, deteriorated or aged HO2S
• Misplaced, bent, loose or corroded connector terminals
• Faulty HO2S
If any misfire, purge solenoid valve or HO2S heater codes are
present, do all repairs associated with those codes before
proceeding this trouble area.
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24.04.2008