P0089 Mazda Fuel Rail Pressure Performance
Possible causes
– Faulty fuel pressure regulator
– Fuel pressure regulator harness is open or shorted
– Fuel pressure regulator electrical circuit poor connection
– Faulty fuel pressure sensor
– Fuel pressure regulator harness is open or shorted
– Fuel pressure regulator electrical circuit poor connection
– Faulty fuel pressure sensor
What about the obd code?
Fuel rail pressure greater than 1450psi over desired rate
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0089 Mazda Description
The Engine Control Module (ECM) uses commanded fuel pump flow to determine a desired fuel rail pressure. The actual fuel pressure is monitored using the Fuel Rail Pressure (FRP) Sensor.
Mazda Vehicle:Mazda B-Series, Mazda CX-7,Mazda CX-9,Mazda MAZDA2,Mazda MAZDA3,Mazda MAZDA5,Mazda MAZDA6,Mazda Miata MX-5,Mazda RX-8,Mazda Tribute,Mazda RX-8,Mazda MX-5,Mazda CX-9,Mazda Atenza,Mazda Axela,Mazda Tribute,