Failed emissions, BAD hydrocarbons
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From: Dale City, VA
Car: 91 GTA and 85 IROC
Engine: 355
Transmission: gear jammer
Axle/Gears: 4.11
Failed emissions, BAD hydrocarbons
Yes, I saw the other post. But I'm no where near where I need to be.
limit reading
HC 114 886 <= failed here.
CO% .64 .21
NO 876 380
It's an 85 Iroc w/ a 305. New cat, plugs, wires, cap and rotor, O2 sensor, fuel filter, air filter.
On the top of the charcole canister there was a place for a hose and it was pulling vacuum. I pluged it off b/c I couldn't find where it went. There was no hose anywhere near it, what does it do? I know that HC is me running too rich. I plan on swaping out the Tstat and retarding my timing like in the other post, but I don't think that's going to cut it.
limit reading
HC 114 886 <= failed here.
CO% .64 .21
NO 876 380
It's an 85 Iroc w/ a 305. New cat, plugs, wires, cap and rotor, O2 sensor, fuel filter, air filter.
On the top of the charcole canister there was a place for a hose and it was pulling vacuum. I pluged it off b/c I couldn't find where it went. There was no hose anywhere near it, what does it do? I know that HC is me running too rich. I plan on swaping out the Tstat and retarding my timing like in the other post, but I don't think that's going to cut it.
Last edited by Free Bird; Aug 26, 2004 at 04:12 PM.
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Joined: Jul 2003
Posts: 4,803
Likes: 2
From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Whats the fuel pressure? What engine temp did you test at?
https://www.thirdgen.org/techbb2/sho...d+hydrocarbons
read that thread, too.
https://www.thirdgen.org/techbb2/sho...d+hydrocarbons
read that thread, too.
Thread Starter
Supreme Member
iTrader: (1)
Joined: Jun 2001
Posts: 1,668
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From: Dale City, VA
Car: 91 GTA and 85 IROC
Engine: 355
Transmission: gear jammer
Axle/Gears: 4.11
Re: Failed emissions, BAD hydrocarbons
Originally posted by Free Bird
Yes, I saw the other post.
Yes, I saw the other post.
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Joined: Oct 2003
Posts: 302
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From: Houston / The Woodlands, TX
Car: 82 ElCamino, looking for a 3rd gen
Engine: 305 TPI(427SB in progress) 730 $8D
Transmission: THM350 (Getting a 4L80E soon)
Axle/Gears: 10 Bolt w/ 2.43 gears :(
do you by chance have the O2 readings from the test.
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From: Dallas, TX area
Car: 91 Formula WS6 (Black, T-Tops)
Engine: 383 MiniRam (529 HP, 519 TQ - DD2K)
Transmission: Built '97 T56, Pro 5.0, CF-DF
Axle/Gears: 4.11 posi Ford 9"
The charcoal canister has a vac hose to the throttle body, is that one still connected?
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