CNW

hey everybody, I have a 93 F150 with a Jasper 302, long headers, and true dual exhaust, all on the truck when i got it. It has always ran a little rough particularly at idle. I decided to dump the codes and I am getting a "52" KOEO code and "33" (EGR valve) and "41" continuous codes. The continuous code "41" is "HO2S - no sensor switching detected." So the million dollar question is will the O2 sensor ever work properly with dual exhaust. Since it only measures half the exhaust with this set up i am wondering if that is the reason i am getting this code. Thanks for taking a look, any feedback is appreciated.

jonny150

I have a 95 f150 with the 5.8 I have true dual no cats juts 12 inch glasspacks and have had no problem. I put shorty headers on it and the only problem i have had was i replaced a header gasket that went out after about 2 years and ever since then the check engine light comes on for a little bit every once in a while.

bobkyle2

its been awhile since i had my 93...but i think when i put true duals on it and no cats ...i deleted my 02 sensors all together ... i think it started gettind really bad gas milege running off one side of exhoust..im not 100% sure ..its been awhile

kharkovnate

I just got the same set up as you and my light has been on eversince. Finally broke down and went to a mech. that I know. It was my EGR solenoid.

Just call me Sean

iTrader: (1)

41 also means system lean, which goes hand in hand with EGR problems. The oxygen sensor should work fine off one side of the exhaust, like if you poured half a glass of orange juice into another glass. They are both still orange juice and taste the same with the same ingredients but less to stimulate your taste buds.
The only problem would be if there's a problem with the bank the oxygen sensor isn't in, the oxygen sensor wouldn't sense it. Adding an X or H pipe with the sensor there should take care of that.