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Question
smitty123
Please see attached file for report. Been dealing with this for a while. Mechanics said they smoke tested and found no leaks.
Fuel pressure tested at 58.
Has random misfire code p0300 and lean code p0171. Has installed new, Delco cap and Delco rotor and Delco Iridium plugs. Last year tried Bosch plugs and new after market cap and rotor. Still no difference. Shows classic sign of vacuum leak as throttle increase causes fuel trims start to lower.
What do you think?
SavannaReport08062022_0001.pdf
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