Rough idle and black smoke

Tiny
SMSAIF
  • MEMBER
  • 2004 HYUNDAI SANTRO
  • 60,000 MILES
Hi
good day

Check compression. Check ignition timing. Check injector pulsing.
plz give me detail of this checking procedures
Saturday, March 17th, 2012 AT 5:58 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Running too rich

1. Excessive fuel pressure can be cause by restricted fuel return line

2. Defective Oxygen Sensors.

3. Leaking injectors and fuel pressure regulator.

4. Coolant temperature sensor out of calibration.

5. Restricted air intake system.
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Saturday, March 17th, 2012 AT 7:03 PM

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