My rex is throwing O2 codes after about a half hour of constant highway speed 70+. 1990 Crx B16 JDM header with new Bosch O2s and Spoon Ecu. As soon as I shut it off it resets of course but I don't get it?? I can't blame the new O2 sensors because I never had it on the highway before I changed them. Any thoughts ???

 

Damm this forum moves fast!!

 

i get the same in my 92 hatch with 95 b18c1, usually when i rev it to like 8k and let it rev down in gear it throws a code 1, ive changed o2's and still the same, ive checked wiring and that was good,,,so im thinkin that its runnin rich on the fuel return...maybe fuel pressure regulator.hth

 

Bosch.....o2's are crap...

that CEL Will never go away unless u use OEM (2) 02's!

if u need some, i have the (2) you need! $50.00 for both shipped

email me: vntperformance@hotmail.com

thanks
vnt

 

now that's a salesman!

 

no but really, i had the same problem on my bro's 4g EF w/b16a swap...same exact problem..we went to Pep Boys got the those damn bosch 02's with the 1 strand of wire hanging out..and still problem still existed..

then we found a junk jdm b16 header and tried the OEM O2's and problem solved !

vnt

 

I did not know the Bosch O2s were that bad. I was told to buy them 2nd to Oem. Thanks for the offer on them, let me check my hookup at Honda on price. I might get back to you.