2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

air pump....searched

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Old Jan 20, 2004 | 09:11 PM
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air pump....searched

Ok so i searched my *** of so please no flaming.
i want to do this:
2. Trick ACV into pumping air to the cat all the time by removing the FORWARD UPPER vac hose, and capping it.

and do i have one of these?
1. Turn variable resistor to full lean, or as lean as you can get and still run.

oh and by the way the alcohol thing works i went from 40 down to 18 carbon monoxide, but it wasnt enough for me, so ive already bought a new cat. I just want o get the emssions stuff done with. thanks!
-brandon
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Old Jan 20, 2004 | 09:15 PM
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andrew lohaus's Avatar
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just take the air tube from the pump and run it strait to the cat. should work. i dont know about passing a visual tho.
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Old Jan 20, 2004 | 09:20 PM
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if you run the pump directly to the cat, dont expect it to last too long...
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Old Jan 20, 2004 | 09:28 PM
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As far as passing the visual, you shouldn't have to worry too much. I've get the air pump, ACV, etc. removed and I didnt even get a question asked. I doubt someone would notice a rerouted hose.
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Old Jan 20, 2004 | 10:06 PM
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is it the big hose on the back of the air pump?
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Old Jan 20, 2004 | 10:25 PM
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Re: air pump....searched

2. Trick ACV into pumping air to the cat all the time by removing the FORWARD UPPER vac hose, and capping it.
where is this elusive vacuum hose? I have to pass emissions tomorrow

Last edited by FCPowah; Jan 20, 2004 at 10:30 PM.
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Old Jan 20, 2004 | 11:12 PM
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DO NOT MESS WITH THAT VARIABLE RESISTOR UNLESS YOU KNOW WHAT YOUR DOING!!!! You can really mess things up!

Let me see if there is a pic of the ACV...
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Old Jan 20, 2004 | 11:20 PM
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there you are. i found this pic, but the ACV has been removed.
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Old Jan 20, 2004 | 11:25 PM
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There is an easier way...All you need to do, as you are looking at the ACV, to the rear of it there are 2 Vacuum lines coming in. The one in the FRONT controls the Air to the cats (Split air i think its called). Unplug the FRONT vacuum line and plug the vacuum line. This will disable the switching solenoid and run fresh air to the cats at any speed. I have tested this on an emissions machine and it drops your CO readings signifigantly. I dont have any pics handy to show but if you get lost, I will get some.

Here is the best I can do... Crappy pic, but I am at work, so bear with me. And I called you, but you didnt answer!

follow the red line, not the black one.
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