SPONSORED LINKS

2004 Mazda RX8 Runs rich

Tiny
ROB QUAGLIA
  • MEMBER
  • 2004 MAZDA RX8
Engine Performance problem
2004 Mazda RX8 Two Wheel Drive Manual

I have a 2004 RX8 rotary 1.4L It runs very rich almost enough to make your eyes water. The only code is low efficency on cat. I have had it checked out and was told the cat is not bad. Any ideas? I have been running super in it for 3 months it also gets poor gas milage even driving it gently. Please any help would be welcomed. Thank you.
SPONSORED LINKS
Monday, March 22nd, 2010 AT 1:55 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Probable causes of an engine running rich are as follows:
1. Fuel pressure not within specs. Can be cause by restricted fuel return line or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+2
Monday, March 22nd, 2010 AT 4:34 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
Engine Running Rich
GUIDE
Engine Running Rich
This guide was created to show you what can cause an automotive engine to have a rich fuel mixture, which may cause black smoke to be released form the exhaust tail pipe as...
VIEW MORE

Sponsored links