Feb 24, 2018 · For the EGR cooler I'd suggest a caustic cleaner. Being stainless steel, and having such a convoluted interior, caustics are the go-to. Oxi-Clean Versatile Stain Remover is effective, and safe …

Oct 17, 2010 · Verification of EGR cleaning Discussion in ' Gen 3 Prius Care, Maintenance & Troubleshooting ' started by PriusKyle, Dec 5, 2025.

Jan 18, 2009 · After looking at about 10-15 different threads about deleting the EGR and finally figuring everything out, I decided to put together this "EGR Delete" How To so the next guy doesn't have to …

Jan 1, 2018 · The EGR valve is much easier to remove compared to the EGR cooler. Next time I swap EGR coolers I'll try an Oxi-clean only cleaning. Oxi-clean does such a tremendous job that I wouldn't …

Apr 23, 2025 · EGR Valve Position/Duty Cycle: At idle and low load: The EGR valve is normally partially open, allowing a small amount of exhaust gas to recirculate into the intake manifold to lower …

Jul 14, 2022 · An egr that is causing sluggish slow speed operation is stuck open without egr cooler clogging. Normally the egr valve is closed in low speed operation. The "Car Care Nut" youtube …

Jan 14, 2019 · Even if the EGR valve assembly is malfunctioning, rough idling or an increase in the value of Intake Manifold Absolute Pressure value may occur while performing the Active Test.

Jul 13, 2014 · I recently completed my engine build and deleted my EGR in the process to make clearance for the return fuel system using a 2.9L Whipple. The EGR is in the way of the rear fuel …

Oct 20, 2021 · Clogged egr does cause knock and head gasket issues. Especially cylinder 1 and cylinder 2. It doesn't meter the correct amount of egr to each cylinder....

REMOVE EGR COOLER SUB-ASSEMBLY Disconnect the connector, wire harness clamp and 4 water hoses. Remove the 4 nuts and bolt. Text in Illustration *1 Stud Bolt and Nut Using an E8 "TORX" …