View Single Post
Old 03-24-2010, 04:58 PM   #5 (permalink)
Whoops
EcoModding Apprentice
 
Join Date: Dec 2007
Location: Ventura, Ca
Posts: 112

Whoop's Wheels - '89 Honda Civic Wagovan
90 day: 39.09 mpg (US)
Thanks: 1
Thanked 9 Times in 7 Posts
You talk about having made the mods to convert it to Fed standards, but it didn't pass. With the Fed standard you had or should have had a 5 wire oxygen sensor.

Since you didn't get it working on the Fed standard, and you've chosen to try to go back to the Ca standard, I wonder if you undid the wiring changes you would have needed to make.

Given the fact that you were able to pass with the Ca setup a year and a half ago, I would be very surprised if the ecu is really guilty of causing you any problem.

One thing to keep in mind, the voltage outputs and control of a 4 wire vs a 5 wire oxygen sensor do not operate the same way. You can not swap a CA ecu and a Fed ecu back and forth because they operate and are controlled differently.

Best of Luck to you.
  Reply With Quote
The Following User Says Thank You to Whoops For This Useful Post:
poi_boi_23 (03-25-2010)