i got weak spark and major flooding. on 1996 Oldsmobile Achieva

throttle position sensor crank shaft sensor temperature control sensor have all been changed and coil packs.stiill have weak spark and floods instantly.

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2 answers
oss fuel pressure regulator is bad.do you have any codes?
You need more testing , is that a quad 4 if it is those spark caps r shorting out againts head..