1995 Mazda 626 failed emissions on a smog test

1995 MAZDA 626
165,000 MILES • 4 CYL • FWD • MANUAL
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DESTINYKAISER
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I have a 1995 Mazda 626 5spd, my problem is that I went and had a smog test done and it didn't pass emissions...Ive changed plugs,plug wires,new distributor,rotor and cap,fuel and air filter,and they said the timing was perfect..What could be wrong???
Apr 27, 2011 at 3:18 PM
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RASMATAZ
  • ✓Experienced Mechanic
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What did it failed on the 5 gas reading?
Apr 27, 2011 at 3:23 PM
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DESTINYKAISER
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The first test it failed on the HC(PPM) it measured 293 at 15mph,it said in the results at 15mph, Gross Polluter and at 20 mph, failed.I re-timed,adjusted idle,and changed spark plug wires...Well the second test the HC(PPM) was 230@15mph,161@20mph;the CO% was 0.60@15mph;and NO(PPM) was 1612@15mph,and 914@20mph. Results was Fail/Fail.. The first test seemed to be better than the second..
I hope this makes sense..I appreciate any advice on what to do...I have no idea..its driving me crazy..
Apr 27, 2011 at 4:43 PM
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