P1143

By BAT Team (Contact Me)
Last Updated 2017-01-17
A site with free advice from mechanics.

Manufacturer Specific Definitions for P1143

Make	Fault Location
Audi	Load calculation - too high
Buick	HO2S Bank 1 Sensor 3 Lean Or Low Voltage
Cadillac	HO2S Bank 1 Sensor 3 Lean Or Low Voltage
Chevrolet	HO2S Bank 1 Sensor 3 Lean System or Low Voltage
Chrysler	Fuel Rail Pressure Malfunction Positive Pressure Deviation
Citroen	Air Assist Control Valve Range/Performance
Daewoo	Feed Back Sol V/V Mal
Dodge	Fuel Rail Pressure Malfunction Positive Pressure Deviation
Gm	HO2S Bank 1 Sensor 3 Lean System or Low Voltage
Infiniti	Heated oxygen sensor (H02S) 1, bank 1 – voltage low
Jeep	Fuel Rail Pressure Malfunction Positive Pressure Deviation
Mazda	Heated oxygen sensor (H02S) 2, bank 1 – lean mixture indicated
Nissan	Heated oxygen sensor (H02S) 1, bank 1 – lean shift monitoring
Peugeot	Air Assist Control Valve Range/Performance
Saab	Manifold absolute pressure (MAP) sensor/ barometric pressure (BARO) sensor – range/ performance problem voltage low
Subaru	MAP/BARO sensor – range/performance problem voltage low
Volkswagen	Load calculation - too high

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Jeffstenn

4 years ago

I’m getting repeated P1143 on my 2002 Nissan Xterra. I usually get some odd code every year when it gets cold…then goes away when the weather warms up, so thought that here,…but we’re now into 40’s and 50’s in Maryland and P1143 is back. Any more experience from anybody on Xterra’s, old ones (my baby! 🙂