LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2003 >> MPV ES >> Repair and Diagnosis >> External Pages >> Different car >> Section 128 (Emission System) >> Three-Way Catalytic Converter (TWC) Inspection >> Upstream HO2S Graph Line Example >> Downstream HO2S Graph Line Example 1
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Downstream HO2S Graph Line Example 1

WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Equation 

RATIO = 30 inversions (upstream HO2S inversions) / 5 inversions (downstream HO2S inversions) = 6.0 (good WU-TWC) 

Fig 1: Downstream HO2S Inversion Graph (5 Inversions)
G01026448Courtesy of MAZDA MOTORS CORP.
scientia non olet · About LEMON Manuals