o2's making the engine run rough, do i need tuning?
07-24-2007, 08:28 PM
#1
o2's making the engine run rough, do i need tuning? i just put an ls1 in my jeep, i wasnt using the front o2's because i wanted to drive it around and make sure everything is working right, plus i had to do some fabing to make the drivers side plug fit
well it was running smooth and nice w/out the o2's in, i was just getting bad gas mileage. Today i installed the o2's, reset the pcm and the engine runs extremely horrible. i tried driving it a few miles hoping the pcm would start tuning it self to the o2's but nothing happend, kept running horrible
i plugged my OBD reader in, and the o2's are showing normal readings
any thoughts?
well it was running smooth and nice w/out the o2's in, i was just getting bad gas mileage. Today i installed the o2's, reset the pcm and the engine runs extremely horrible. i tried driving it a few miles hoping the pcm would start tuning it self to the o2's but nothing happend, kept running horrible
i plugged my OBD reader in, and the o2's are showing normal readings
any thoughts?
07-26-2007, 01:18 PM
#2
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Location: Sacto, ca.
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If you think the o2's are causing it what you need to do is look at the fuel adaptive %. That can be found using any generic obd2 scanner that can look at data stream. Normal readings are + or - 10% at a steady load.