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Cobalt This sporty compact was faced with the difficult job of replacing the popular Cavalier, but whether the base model, or the supercharged SS is chosen, is has made for a great replacement.
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2005 cobalt running lean

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Old September 3rd, 2017, 4:08 PM
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Default 2005 cobalt running lean
my 2005 cobalt 2.2 ecotec has a lean code i have done spark plaugs fuel filter cleaned maf replaced intake
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Old September 3rd, 2017, 5:17 PM
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if its lean at idle but ok at 2500rpm...you have a vacuum leak...this leak can be anywhere between the maf and intake manifold. check the fuel trim at both speeds
if its lean all the time...check the fuel pressure
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