2003 Mitsubishi Galant any body help me on this Galant

Tiny
NOOR_HAWAMDEH
  • MEMBER
  • 2003 MITSUBISHI GALANT
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 138,255 MILES
Hello expert
i have mitsubishi galant lately i've experienced an un burned fuel (gasoline) from exhaust with a high fuel consumption
i changed the spark plg, coils, but still the same
lately a friend adviced me to check it by 4 gas analyser but no body tell me what this reradings mean:
co=1.5 co2=13 hc=225 PPM o2=0.5 lamda=0.989

from this readings do any one tell me what is the problem with my car?

thank u
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Saturday, September 20th, 2008 AT 5:43 AM

3 Replies

Tiny
2CEXPT
  • MEMBER
Carbon monoxide is on the border line and Hydrocarbons high

For a start get the catalytic converter checked out
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Saturday, September 20th, 2008 AT 6:33 AM
Tiny
NOOR_HAWAMDEH
  • MEMBER
Dear expert I got a new catalyser from it agency its a new one
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Saturday, September 20th, 2008 AT 7:38 AM
Tiny
2CEXPT
  • MEMBER
Hydrocarbon failures mean unburned gasoline is passing through the engine and entering the exhaust. The three most common causes include ignition misfire, lean misfire and low compression (typically a burned exhaust valve). Ignition misfire can be caused by worn or fouled spark plugs, bad plug wires or a weak coil. Lean misfire results where there is too much air and not enough fuel, so check for vacuum leaks, dirty injectors or a fuel delivery problem. In addition to these, hydrocarbon failures can also be caused by oil burning due to worn valve guides, valve guide seals and/or rings.
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Saturday, September 20th, 2008 AT 1:10 PM

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