1996 Dodge Neon i can't pass emissions

1996 DODGE NEON
83,000 MILES • 4 CYL • FWD • MANUAL
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my neon is failing emissions by 5x the limit on co and 2x the limit on hc. i have replaced the evap canister the map sensor the iat sensor the computer the injectors and the exhaust recycle system is running fine. how else can i be failing that bad?
Apr 14, 2008 at 2:01 AM
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BMRFIXIT
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you need to check for codes
do you have check engine light on
and if so scan the system for codes
let me know
Apr 14, 2008 at 6:25 AM
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I don't have any codes that is what is bothering me about the engine
Apr 14, 2008 at 7:21 PM
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BMRFIXIT
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for the readings to be that high the O2 sensor should pick it up
unless its no good
with key on engine off you have check engine light on

I still think you should have it scanned
Apr 14, 2008 at 8:00 PM