OBD2 reading other fix

TRYTOFIXMYSELF

MEMBER
1999 MAZDA 626
6 CYL
FWD
AUTOMATIC
137,000 MILES

99 mazda 626 2.5 check engine light on was told I had bad egr valve question can bad intake manifold gasket cause check engine light to come on

Wednesday, December 15th, 2010 AT 3:27 PM

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KHLOW2008

MECHANIC
41,814 POSTS

Many things can cause the CEL to come on. Some do not do it directly but could cause some sensors to malfunction and trigger codes.

Bad intake manifold gasket would cause erratic idling, surging or stalling.

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OBD2 reading other fix

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