Question about 2003 Mitsubishi Galant
Car runs good but service engine is on po700
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Posted on Jan 02, 2017
SOURCE: Check Engine Service light on
Without knowing anymore about your driving habits or how long it's been since a fill up, the first thing that comes to mind would be the gas cap. It sounds like you (or whomever filled you up) may not have locked the gas cap properly. This will cause a difference in pressure and will essentially throw a code.
Posted on Jan 06, 2009
this light will come on if you have a problem with the emissions system. Take it to a place like autozone and have them scan it for codes. list the codes here and we can help you out.
Posted on Jan 07, 2009
i had a similar problem with my 98 eclipse...there is 3 relays on the firewall on the drver side,check those,i changed mine and hav'nt had a problem since...good luck.
Posted on Jun 04, 2009
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