[2002gxe]

Where are the four o2 sensors on my 2002 gxe located

 

[PNWcruisin]

Should have only 2. 2002 might have them both in the manifold. If not, 1 in the manifold, 1 in the mid pip near bottom of engine

 

[MoltenNismo]

2002 1.8's have all 4 on the exhaust manifold. 2 of them are before the pre-cat, 2 of them after the pre-cat.