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Old 10-23-2025, 12:59 AM   #4
leegreen
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Join Date: Mar 2022
Location: Surrey BC
Posts: 1,397
Re: LS Swapped C10 Power Issues

Before you go to a tuner I'd scan it for any stored fault codes and check to see what the fuel trims and real time O2 traces look like.

If you aren't setup to scan the computer, all you need is a bluetooth OBD2 dongle, a phone and a copy of torque pro. Not counting the phone that is less than a 1/4 tank of gas. And an hour on youtube will teach you what to do/look for.

It sounds to me like it might be running open loop, which could explain both performance and smell. I can clearly see the wire on your left O2 is connected, but can't spot the right side wire.....
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