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shovel
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Post subject: Air injection for catalytic converter, needed for emissions
 Posted: Feb 03, 2010 - 05:31 PM
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Blabbermouth
Joined: Aug 14, 2009
Posts: 16777214
Location: Phoenix
Status: Offline
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jglen490
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Post subject: RE: Air injection for catalytic converter, needed for emiss
Posted: Feb 03, 2010 - 08:56 PM
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Posting Freak
Joined: Jul 13, 2007
Posts: 516
Location: Montgomery AL
Status: Offline
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| If the inspectors only do a visual ( and don't stick a sniffer in the exhaust pipe), and they don't care about the Thermactor II piping even though you can run on gasoline, then you are probably golden. But, only your inspector knows for sure. |
_________________
I feel more like I do now than I did when I got here.
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'92 Plymouth Grand Voyager, 3.3L - "Old Guy"
'94 Tempo GL 4-door, 2.3L, autotragic - "Bonz"
'97 Ranger 3.0L - "Abe"
'05 Dodge caravan, 3.3L - "George"
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shovel
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Post subject: RE: Air injection for catalytic converter, needed for emiss
Posted: Feb 03, 2010 - 09:21 PM
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Blabbermouth
Joined: Aug 14, 2009
Posts: 16777214
Location: Phoenix
Status: Offline
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They sniff it, on a chassis dyno under load - so I have to still produce "clean" exhaust on both fuels to pass. I can legally drive with just a passing score on one fuel even if it's capable of running both, the law gets a bit vague but the DMV inspector said officially I have to "tag off" any fuel system that can't provide a passing emissions result.
I want to keep clean and legal... just don't know if an aftermarket high flow cat without air injection will do that - like my 2001 S10 doesn't have air injection and passes... |
_________________
1992 Ford Tempo GL dual fuel CNG/Gasoline A/T 4dr
2001 ZR2 Blazer 4x4
This is my mom's business.. I don't understand the stuff but she really does earn 80k/yr from home, maybe you can too?
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93WHITE2.3
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Post subject: RE: Air injection for catalytic converter, needed for emiss
Posted: Feb 03, 2010 - 11:20 PM
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Newbie
Joined: Jan 22, 2008
Posts: 2
Status: Offline
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| I got a direct fit hi flow magnaflow cat with the air tubes on it for $94.91 from performancepeddler (free shipping). It made a big difference in performance of my 93 2.3. |
_________________
Bill,
Ford Parts Man
93 2dr Tempo 5spd GL
77 Pinto Wagon
00 Ranger 3.0 Super Cab Flareside
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amc49
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Post subject: RE: Air injection for catalytic converter, needed for emiss
Posted: Feb 04, 2010 - 03:16 AM
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Active Member
Joined: Aug 07, 2009
Posts: 391
Status: Offline
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| Depends on what they sniff for, HC, CO and NOx. If so and you have converter with no airtube, may be a HC, CO type only. The airtube added when converting all three. You may fail NOx with that one. I'd check, later converters may be good enough to do all three without the air in middle. To my knowledge there is no air pump on later Tempo, it uses a passive pulse air system, at least on the fours. |
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amc49
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Post subject: RE: Air injection for catalytic converter, needed for emiss
Posted: Feb 08, 2010 - 04:18 PM
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Active Member
Joined: Aug 07, 2009
Posts: 391
Status: Offline
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| The NOx reducing section is in the front because that reduction does not like extra oxygen. The air then added in the middle for the rear brick which reduces HC and CO, need more oxygen for that. Ask your inspector if they check for NOx, some states don't, requires much more expensive tester. If they don't you can get by with no air to converter unless they fail it for no visible airtubes. |
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