Robert Jarosak
  • Male
  • St. James NY
  • United States

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What is your HOD level of experience?
Intermediate Builder
Is there anything else you would like to add?
The answers for every application are out there. I believe everyone should work together, sharing there knowledge, to achieve the big picture.
The market is HUGE, stop hiding facts for personal gain.
I am an ex HAFC DICI dealer/installer and have been experimenting for 4 years now with various systems

Robert Jarosak's Blog

No guess work adjusting of rear O2's

Posted on April 7, 2011 at 8:00am 2 Comments

It is so frustrating to get gains only to see them fall off without locating the answer.

In my case I believe one was the rear O2's. Here's what I did.  I simply did a road test with the system off and did a voltage reading to see what the computer was accustomed to seeing then turned the system on to figure out what was happening. It turned out I had a solid 500mv drop. The manufacturer of the EFIE recommended 200-250mv max add and articles states 350-500. I would never had guessed I…


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