One O2 sensor is on the manifold after the first catalytic converter and the other O2 is downstream behind the second catalytic converter (middle of vehicle body underneath).
Chevy metro
the largest size tire that will fit on a 13 inch rim without rubbing the wheelwells on a Chevy metro is 175/70R13
It's a code for the oxygen sensor.
subtract 13 percent from 2000 = 174013% subtracted from 2000= 2000 - (13% * 2000)= 2000 - (0.13 * 2000)= 2000 - 260= 1740
Remove the serpentine drive belt and then remove the two 13 mm bolts from the power steering pump. Do not disconnect the hoses from the pump. This will allow you to lift the pump up enough to access the cam position sensor. Remove the 8 mm bolt which secures the sensor, you will need a swivel socket in order to do this. Once the bolt is removed, unplug the sensor and lift it out. Install the new sensor and remount the power steering pump. Should take 15-20 minutes with the proper tools.
I own a 2000 Buick Lesabre with 164,00 on it. I am on my 2nd map sensor in less than 2 years. But if buying this part is all I have to do for my 13 year old gem I am happy.
13 inch
O2S problem
if your geo's bolt pattern is 4x100
4x100
Metro - 2013 is rated/received certificates of: Germany:16 Philippines:R-13 South Korea:15
It depends on the year and wheel configuration of your metro. Most metros have a 4 lug 12 inch wheel design whereas the Prizm has a 4 lug 13 - 14 inch wheel base. They may fit on a Geo Metro Convertible or any Geo Metro made after 1995 because after 95 the metro had 13 inch wheels. I would check by direct comparison first.