SPONSORED LINKS

1993 Mazda 626 engine is running rich

Tiny
ERICFURNISS
  • MEMBER
  • 1993 MAZDA 626
Engine Performance problem
1993 Mazda 626 4 cyl Front Wheel Drive Automatic

what are the parts that makes my engine run rich and how do I check the parts
Sunday, August 15th, 2010 AT 12:18 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Probable causes of an engine running rich are as follows:

1. Excessive fuel pressure can be cause by restricted fuel return line or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, August 15th, 2010 AT 10:37 PM

Please login or register to post a reply.

Related Engine Rich Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Check Engine Light
GUIDE
Check Engine Light
Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...
VIEW MORE

Sponsored links