Recommended Procedure

WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Connect the scan tool. Access and monitor the EBP and RPM PIDS.

Increase the engine speed to 3,800 RPM.
Record the EBP PID value.
A low RPM or an EBP PID value greater than 244 kPa (35 psi) indicates a restricted exhaust condition.