98 GALANT PO100, PO1400

  • Tiny
  • mlas1976
  • 1998 Mitsubishi Galant
  • 4 CYL
  • 2WD
  • automatic
  • 154,000 miles

I have a 1998 galant es 2.4 4cy. I have 154000 miles on it and I have two questions. What all do I need to check and replace on my routine maintenance to keep it running another 150,000. Also I have a code po100, and po1400. Stating my maf, and map need changing/ I changed them out cleared the codes stayed off. Next time I drove it the light came back on. I have cleaned the throttle body up still reading codes. Please help? What could it be? Could it be an o2, vacuum leak, egr, what? I need help.

Do you
have the same problem?
Thursday, April 7th, 2011 AT 2:59 AM

1 Reply

  • Tiny
  • KHLow2008
  • Expert
  • 41,994 posts

It could be loose or contaminated wiring connections, vacuum leakages or a bad PCM.

Were the parts replaced new or used?

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Tuesday, July 5th, 2011 AT 2:32 PM

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