Test Description

Tools Required:  J 35314-A Exhaust Back Pressure Gauge

The numbers below refer to the step numbers on the diagnostic table.

1. 4)  - The exhaust system has very low back pressure under normal conditions. If the exhaust system is restricted, a significant increase in the exhaust pressure is noticed on the J 35314-A. Removing the HO2S sensor may set a DTC. When finishing this diagnostic table, be sure to clear all codes.
2. 5)  - This step will isolate the catalytic converter from the remainder of the exhaust system.