 Outrageous emissions readings? |
 Apr 14, 2017 - 6:42 PM
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 Enthusiast  Joined Dec 26, '09 From Albuquerque, NM Currently Offline Reputation: 19 (100%)  |
My registration is due to be renewed by the end of the month, so I went to my usual emissions station. My engine and cat were already plenty warm by the time I arrived, but the guy was out on an errand, so I sat idling for about 10-15 more minutes. These were my high RPM readouts:
 This is crazy - they have never been so high. This time last year, HC was only at ~40 and CO was something around 0.6-0.65. What could've gone bad between these two readings to make it jump so drastically?? My Celi drives the same, idles the same and gets the same MPG as last year. No CEL either. Earlier today I removed my battery for access to replace my motor mounts. The only thing that crosses my mind is that maybe the A/F ratio got reset. The battery was out for ~1.5 hours or so. I drove for roughly 10-15 minutes to get to the emissions station after that. Any ideas, guys? -------------------- taking too long to mod since '09
June '12 COTM '95 AT200 |
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Replies
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Apr 15, 2017 - 7:02 AM
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Enthusiast Joined Jan 27, '14 From Houston Currently Offline Reputation: 0 (0%) |
Happened to me
I had very high emissions with no check engine everything runs fine bla bla turned out to be the cat but the one in the front Apparently it had no honey combs lol was running rich the whole year and made me fail new cat 400$ on the GT |
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Apr 15, 2017 - 3:12 PM
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Enthusiast Joined Dec 26, '09 From Albuquerque, NM Currently Offline Reputation: 19 (100%) |
QUOTE (Oreo20 @ Apr 15, 2017 - 6:02 AM)  Happened to me I had very high emissions with no check engine everything runs fine bla bla turned out to be the cat but the one in the front Apparently it had no honey combs lol was running rich the whole year and made me fail new cat 400$ on the GT I replaced my cat on January of last year... I don't think it would be the cat. Hopefully not, anyway. And it's a 7A, so I've only got one cat. -------------------- taking too long to mod since '09
June '12 COTM '95 AT200 |
Posts in this topic
HectortheRican Outrageous emissions readings? Apr 14, 2017 - 6:42 PM
Bitter give it a good italian tune up then try again. Apr 14, 2017 - 6:59 PM
HectortheRican QUOTE (Bitter @ Apr 14, 2017 - 5:59 ... Apr 14, 2017 - 7:45 PM Bitter you're supposed to put salami up the tail pipe... Apr 14, 2017 - 8:26 PM Box Italian tune up=drive the hell out of it to blow t... Apr 14, 2017 - 8:28 PM Bitter If they can't test it right away do a ****ing ... Apr 14, 2017 - 8:44 PM Box I think that might cause a whole new set of proble... Apr 15, 2017 - 5:29 AM |
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