High CO DMV Fail
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Joined: Apr 2007
Posts: 131
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From: CT
Car: 1988 Iroc Z Convertible
Engine: 5.0 TPI LB9
Transmission: 5 Speed
Axle/Gears: 3.08
High CO DMV Fail
Hi guys,
need some help, i just bought my 88 Iroc Vert in June and just took it to an emmisions station, failed miserably on the CO. I will post the numbers below. I was thinking the O2 sensor? Car seems to run good, does smell like it is running really rich, the numbers arent even close. help appreciated.
HC: Limit 100, Emmisions: 66 Pass
CO: Limit .32, Emmisions: .91 FAIL
NOX: Limit 700, Emmisions: 156 PASS
need some help, i just bought my 88 Iroc Vert in June and just took it to an emmisions station, failed miserably on the CO. I will post the numbers below. I was thinking the O2 sensor? Car seems to run good, does smell like it is running really rich, the numbers arent even close. help appreciated.
HC: Limit 100, Emmisions: 66 Pass
CO: Limit .32, Emmisions: .91 FAIL
NOX: Limit 700, Emmisions: 156 PASS
Thread Starter
Member
iTrader: (2)
Joined: Apr 2007
Posts: 131
Likes: 0
From: CT
Car: 1988 Iroc Z Convertible
Engine: 5.0 TPI LB9
Transmission: 5 Speed
Axle/Gears: 3.08
Re: High CO DMV Fail
so i changed the O2 sensor and PCV, CO came down 30% to .60 but still double. anyone? EGR next?
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