What is your question?
·
·
What is your question?
No fault codes. Runs well but at 1/3 throttle engine surges up and down. Fuel press is 60 psi.
1 Reply
Hello, sounds like potentially it could be an EGR system restriction, or valve issue. It could also be fuel or air control related. Too hard to know without monitoring data in real time with a high end diagnostic tool and doing some physical inspections. www.repairpal.com/repair-shops