I have a 2002 bi-fuel cavalier. It started sputtering on me when running on natural gas and the check engine light came on. I pulled over and pulled the cng fuse and it runs fine on unleaded with no engine light on. I tried to run it a couple of more times on cng with the same result, it even died on me once. Checker auto diagnosed an O-2 sensor. Does this sound right? Any ideas on what else it might be?
Thanks Shane
Thanks Shane
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