What would cause a poo90 engine code on a 2003 Mazda?
the EGR valves stick and there is a TSB from mazda on this problem if you remove the EGR valve and THROTTLE BODY you can check the intake ports to see if they a carbon clogged. it is more than likely the EGR valve itself is BAD. this would in no way cause the p0090 code which is a code for the electrical circuit of the PRC solenoid
What’s the Diagnostic Code on a Mazda Protege 5?
2003 Mazda Protege 5 just started showing a CEL with a diagnostic code of P0302. I gather that is a misfire on cylinder 2, possibly caused … read more Engine choking/stuttering/missing/running rough/nearly stalling, CEL comes on, then it starts running fine again.
How to find out if your car has a p0090 code?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. How much do you know about cars? The cost of diagnosing the P0090 code is 1.0 hour of labor.
the EGR valves stick and there is a TSB from mazda on this problem if you remove the EGR valve and THROTTLE BODY you can check the intake ports to see if they a carbon clogged. it is more than likely the EGR valve itself is BAD. this would in no way cause the p0090 code which is a code for the electrical circuit of the PRC solenoid
What does the code p0090 mean on a fuel pressure regulator?
This code is similar to P0089, P0091, and P0092. P0090 is an OBD-II code telling us there is a fault found within the fuel pressure regulator control circuit. This DTC is triggered when the ECM finds out-of-range performance from the control circuit. Out of range performance causes a Check Engine Light and a failsafe mode.
2003 Mazda Protege 5 just started showing a CEL with a diagnostic code of P0302. I gather that is a misfire on cylinder 2, possibly caused … read more Engine choking/stuttering/missing/running rough/nearly stalling, CEL comes on, then it starts running fine again.
What can I do to fix my p0090 code?
What repairs can fix the P0090 code? Typical repairs for P0090 are: Professional scan tools are standard equipment for qualified mechanics. These scan tools will be required to view live sensor data, changes over time, readings from the ECU, and fuel pressure.