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Trying to fig out why I get a cel and why my idle goes to crap once it comes on. I do have open loop but the o2s are not connected just my wide band

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i have mine in open loop. i had the same issue. about 10 min of driving the cel came on. car ran light crap afterwards. what i found was a broken wire to the left side o2. when i connected it the car ran good as new. no more cel. i think in open loop they still need to be able to report back even if the cars tune doesnt require it.
 
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