Hardcore Emmision Failure
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 792
Likes: 0
From: Palatine
Hardcore Emmision Failure
Hydrocarbons 1.96 . Carbon Monoxide 45.4 . Car is a 94. Going to try plug replacement, I put in the those Iradium tipped NGK's about 2 years ago, Im sure those little tips are toast.
I thought I was running lean (lots of exhaust, and smelling sweet), but with those high numbers wouldnt that indicate running rich?
I thought I was running lean (lots of exhaust, and smelling sweet), but with those high numbers wouldnt that indicate running rich?
Safety Car
Joined: Apr 2003
Posts: 3,793
Likes: 9
From: VA
Originally Posted by Blues77
Hydrocarbons 1.96 . Carbon Monoxide 45.4 . Car is a 94. Going to try plug replacement, I put in the those Iradium tipped NGK's about 2 years ago, Im sure those little tips are toast.
I thought I was running lean (lots of exhaust, and smelling sweet), but with those high numbers wouldnt that indicate running rich?
I thought I was running lean (lots of exhaust, and smelling sweet), but with those high numbers wouldnt that indicate running rich?
Plugs may or may not be part of the problem, but they aren't going to fix something that bad.
Sounds like you need to get somebody who knows what they're doing to diagnose it instead of throwing parts at it.
Most likely cats are toast, but you need to fix whatever killed them before you replace them. Unless you want to be replacing them regularly.
Race Director
Joined: Aug 2002
Posts: 16,024
Likes: 0
From: Stratford Ontario
I agree that your cat(s) are toast. I ran similar numbers in the fall and I KNOW I have a bad passenger side cat. I haven't changed the cats yet nor have I re-tested, sorry I can't help more at this point.
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 792
Likes: 0
From: Palatine
Just pulled codes 12(intro) 24, 34, 44, and 99 (end). 24 is vehicle speed sensor, which I replaced. 34 is MAP sensor which is new. and 44 = Lean exhaust? But Im running rich via emmisions.. Maybe new ECM?
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