P790A Fiat Punto OBD Code

OBD/2 P790A error code description and symptoms.

HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw.
The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Short to VPWR in harness or HO2S. Water in harness connector. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals and wiring Damaged HO2S heater. Damaged PCM.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code P790A, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code P790A on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

P790A Fiat Punto Error Code Repair Process :

The rule of P790A code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of . Likewise, overriding the OBD P790A error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Common Causes of Fiat Punto P790A OBD2 Code

A common cause of code P790A is the failure of , but there are several other possible causes as well, such as ;

Exhaust tube
Faulty front heated oxygen sensor
Fuel Injectors circuit poor electrical connection
Fuel injector leaks

P790A is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy

P790A Fiat Punto OBD Code

P790A Fiat Punto Error Code Repair Process :

Common Causes of Fiat Punto P790A OBD2 Code

P790A code for other Fiat cars