2005 Cadillac CTS Repair Question
Car still sputters/shakes when idle.
check fuel pressure shold be 55-60 psi and try cleaning throttle plate with choke cleaner on both sides. it's at the end of the air duct at engine. they get gummy and will cause rough idle and stalling. also check for a vacuum leak like a hose off. It can also bea cam fazer not working right but it shold set a code for that
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