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by annawonka
Wed Aug 27, 2025 1:13 am
Forum: General Motors
Topic: Help interpreting O2 reading vs. BPW?
Replies: 2
Views: 1493

Re: Help interpreting O2 reading vs. BPW?

Welcome to the forum! From your description and the graph, it does look like a fuel delivery issue—those injector errors and BPW spikes at low RPM suggest either a failing injector, wiring issue, or fuel pressure problem. I’d start by checking injector connections, fuel pressure, and any possible EC...