i was running the stock obd0 dual 02's with hesitation, then i tried switching the #1 and #2 o2 pins and that fixed it.

then i switched to a JDM DC 4-1 and ran both 02 wires together in the bay and i experienced the hesitation again.

i then pulled the 02 out all together and it made it real nice to drive, until i started fouling out plugs and stuff about 6 months later.

i threw a wideband on my setup and on anything other than cruising it would be at a good a/f, but when cruising the a/f would drop way below 7:1.


this weekend, i have read about wiring the single 02 sensor together very close to the ECU side so that voltages wouldnt get whacked out from possible underhood interference, or high impedance that the 2 wires and the length from the engine bay could cause.

so i did that, and im now watching my fuel carefully before i make any conclusions to if it worked or not.

BTW this past week with no 02 sensor i was getting about 150 miles to a tank of gas


has anyone got any other setups that are working for them or any pointers for me?

 

Have the ecu chipped so that you don't have to run the second o2 sensor. I am averaging about 28-30 mpg and my af is around stoich at cruise and light load and 13.1 at wot.

 

i don't run any O2 sensors but i see no CEL. i get like 200 miles on my CRX on a tank. but my car runs fine. will putting a O2 make a difference? because i think the ECU doesn't throw a code. is there a way to disable the ECU?

 

ttt LOOKING FOR MORE SETUPS for my car!