I have a 3" zzp catless dp and i intermittently get a ses light for the code 1133 HO2S insufficient switching sensor 1 I was wondering if the dp is the problem i have changed the o2 sensor and that did not helpany input is appreciated
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10-05-2008
I have a 3" zzp catless dp and i intermittently get a ses light for the code 1133 HO2S insufficient switching sensor 1 I was wondering if the dp is the problem i have changed the o2 sensor and that did not help
10-07-2008
I think i may have figured out my problem. I have a zzp pcm with a generic tune on it and from what i have read it is for a 3.4" setup. Since i am running a 3.5 with a few supporting mods i am not getting the enough air in the engine for the fuel that the pcm is sending. That is causing me to run rich (i have verified that with a scanner) and not switch to lean therefor tripping the inciffent switch code. Any one think i have got it down or should i look else where?
10-07-2008
I ran a generic ZZP tune on my car with just a CAI and stock pulley, so I was running a lot richer than you and yet that code never popped up for me.
10-08-2008
Hmm hopefully its not an injector screwing up i don't feel like buying new ones i might find the problem some day
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