I recently replaced my intake manifold gasket due to a leak at the rear wall.  Took my time and did a lot of cleaning at re-assy. Now I cant pass my emission test and it is hard starting (4 or 5 tries) when cold.

 Be sure the MAP is connected to vacuum, and that the electrical connections on the MAP are tight and secure.
CO=8.0 is uber-rich. No vacuum to map or high MAP signal will cause this.



|UPDATED|5/17/2014 2:51:21 PM (AZT)|/UPDATED|

Oil Change ( used engine oil carries high amounts of Hydrocarbons ) New air filter , Check your timing also , I had issues this past year on mine & once I did these things  all the bad stuff was reduced & I pass with flying colors . I believe stock timing is set about  4 deg, ATDC.  I kicked mine down to 2 deg.

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