1998 Mitsubishi Eclipse System Rich

1998 MITSUBISHI ECLIPSE
132,020 MILES • 4 CYL • FWD • AUTOMATIC
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ITCHWEEED2000
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I scanned my car for codes, and a code came up "SYSTEM TOO RICH (Bank 1)". My question is what could cause my car to run rich? Mind you, I did tune up...changed plugs, wires, coil...then I scanned system...please help me out...

thank you
Feb 16, 2010 at 5:30 PM
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RASMATAZ
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Your possibilities here could be one of the following, O2 sensor, fuel pressure regulator, leaking injector/s, cloged airfilter and coolant temperature sensor stuck in the open loop mode-
Feb 16, 2010 at 5:47 PM