Lean Code Bank 1
I have a 2000 ford ranger 4 cylinder 5 speed manual 176,000 miles. I just replaced the exhaust system and catalytic converter along with the 2 o2 sensors. ever since ive been getting a lean code there are no exhaust leaks or vacuum leaks. but on the muffler to intermediate pipe connection where the u bolt is there is been a little bit of black soot coming out would that cause cold air to go upstream and cause a lean code? had no engine codes before the work
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2000 ford ranger 4 Banger 5 speed manual
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