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Wideband Spacers and Idling
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forrestc Offline
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Joined: Jul 2008
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Post: #1
Wideband Spacers and Idling
My HHO setup consists of a smack booster in my trunk. I didn't see any gains with just the booster, so I was going to install an EFIE only to find that my Jetta uses wide-band sensors. I then decide to buy the help spark plug spacers and drill one out. I now have the pre-cat O2 sensor sitting out of the exhaust with two spacers. I drove my car from NY to NC, figuring that would be a good test to see if the system is working. I got 33.8 mpg driving 75 the whole way, about 1.5 mpg more then normal. I thought I would see more gains then that. I think I may need to change my spark plugs due to more moisture in the chamber now. During idling with the spacers the rpm fluctuate about 100 rpm from 800 rpm to 700. They rpms kinda drop slowly and the car shakes little and then they shoot back up 150 and settle back at 800 rpm. This happens every 5 secs or so. Any thoughts on the idling issue and what might be keeping my mileage gains from appearing?

I have another thread talking about my setup if more information is needed.
http://www.fuel-saver.org/showthread.php?tid=906
(This post was last modified: 07-17-2008 12:45 PM by forrestc.)
07-17-2008 12:44 PM
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