No start
2004 suburban LS 5.3 engine..2 wheel drive
So..starts in the morning..I do my errands..then afternoon evening it won't start... Had 5 check engine codes..lean bank 1 and 2.. catalytic converter codes both banks.......replaced cats...now same issue..no start but now only 2 codes p0172 & p0174....lean both banks...don't heat a vacuum leak...so where should I look next...fuel side?
So..starts in the morning..I do my errands..then afternoon evening it won't start... Had 5 check engine codes..lean bank 1 and 2.. catalytic converter codes both banks.......replaced cats...now same issue..no start but now only 2 codes p0172 & p0174....lean both banks...don't heat a vacuum leak...so where should I look next...fuel side?
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