Trying to diagnose a running rich condition, rough idle with no codes; I suspect faulty fuel pressure regulator. I’m getting the following readings. Thoughts?
1) Diagnostic port short - 46psi (37-46psi)
2) Idling, vacuum removed - 46psi (37-46psi)
3) Idling, Vacuum reconnected - 47 psi (33-37psi should be range) - failed.
Is the last test the reason why it’s running rich, rough idle, with no codes?? Thanks! Any suggestions.
1) Diagnostic port short - 46psi (37-46psi)
2) Idling, vacuum removed - 46psi (37-46psi)
3) Idling, Vacuum reconnected - 47 psi (33-37psi should be range) - failed.
Is the last test the reason why it’s running rich, rough idle, with no codes?? Thanks! Any suggestions.