Mazda 3 - Poorly running engine | HELLA
Mazda
Mazda 3
All models with the MZR-CD engine code
(RF-Turbo)
Poorly running engine.
If complaints are made about the above-mentioned problem, the trouble could be traced back to a faulty fuel pressure regulator control solenoid valve. The following complaints can also be included in this general problem:
- Engine stalls sporadically.
- Sporadic loss of power.
- Poor cold-start performance.
- Engine does not accelerate properly.
Under certain circumstances the engine warning light will also come on and the P0089 fault code may be stored.
An initial measure should be to check the fuel circuit for faulty air intake or leakages. It is also advisable to examine the fuel filter and, if necessary, to renew it.
Information when checking the component with the plug disconnected.
If no faults can be detected here, it must be assumed that the fuel pressure regulator control solenoid valve is defective.
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.
Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval and indication of the source. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
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