To the best of my knowledge a 98 2.2L 4-cyl does not have a cam sensor. It does however have a crank sensor and if you look at the lower crank pulley just to the back of the pulley and go around the pulley you should find the sensor mounted on a bracket. You should see what appears as a sprocket with widely spaced teeth on the engine side of the pulley. This "sprocket" so to speak is what the crank sensor "reads". I believe that the crank sensor is the only sensor used for engine timing. The 2.2 is an overhead cam engine design and a crank sensor wasn't used. I know this is the case for the 96 models, both 2.2L and 4.3L v-6 and the design has carried through current models to the best of my knowledge.
my 1996 hombre that's a s-10 clone with a 2.2 Chevy motor has a cam sensor i just had to replace it. the easy was is to take it to advanced or auto zone let them scan the computer for the fault code to tell you witch sensor it is. its location is on the bottom of the engine block passenger side. some say its easier if you take the tire off to access it.
bank 2 is opposite #1 cylinder and sensor 1 is front.
The location of the O2 sensor depends on which engine your Chevy Celebrity has. If it is the 2.5L 4 cylinder the O2 sensor is on the front of the exhaust manifold near the exhaust port. If it has the 2.8L V6 the O2 sensor is on the top center of the exhaust manifold near the firewall.
location for 2003 chevy trailblazer coolant temperature sensor
location of 3 sensor of 97 Chevy astro van?
Where is the location of the cooling fan sensor on a 2002 Chevy Trailblazer? Also what is the 800 number for Chevy?
How do you change oxygen sensor on a 2006 Chevy aveo?"
how do you change a thermostat sensor in a 2001 Chevy cavalier and where is it
2003 chevy tahoe knock sensor
how do you change the knock sensor in a 2003 Chevy silverado 5.3
is it difficult to change the fuel sensor on a 2007 Chevy Malibu
You'll find the location for the 4 & 6 cylinder in this pic. http://autorepair.about.com/library/faqs/bl826b.htm
where the map sensor on 98 blazer?