I have this vette that won't pass the IM240 emissions test HC4.53 gpm CO 0.8 gpm CO2 521.4 gpm. The car runs good, idles good, has good power no misfire at any time. ign system checks out fine,fuel pres. ok no pres. drop,air pump only on when first started col...

Summary posted 9/8/2001

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