i just had my z (03 touring 6spd) in the shop to get all three position sensors changed. that would be camshaft bank A and B, as well as the crankshaft sensor. what's odd is when i picked it up he told me he only changed 2 sensors because he "couldn't find a crankshaft slot in the center" and that the only part that fit in one of the camshaft slots WAS the crankshaft sensor he ordered. and the even weirder part is that the car drove home perfectly fine with no issues, codes, or sputters. can someone explain to me where the sensors are located and how they differ from eachother so i can make sense of this? either i read something wrong online or my car is somehow driving with mismatched sensors and possibly one missing entirely?? maybe i understood the mechanic incorrectly but any help is appreciated. thanks.

 

All 3 sensors have unique OEM part numbers and each sensor is visibly different in regards to the orientation of the harness connector.

If you took your Z to a shop, there's a strong possibility they used generic aftermarket sensors, which might be the reason the mechanic ran into fitment issues.

When it comes to engine sensors related to the ignition system, always use OEM.
-Icer

 

The crankshaft sensor is located under the vehicle, at the driver's side of the bell housing where it mates to the engine block.
The camshaft sensors are located on the backs of the cylinder heads, closest to the intake camshaft. They can be a little hard to see because of the intake manifold and throttlebody assembly.

Odds are, if he couldn't use the sensors he ordered, that he put the originals back in.

You can search Z1 motorsports or just use Google to find pictures of the sensors. Here are the OEM P/Ns...
CRANK - 23731-AL60E > 23731-AL60C > 23731-AL60D
CAM BANK2 (driver side) - 23731-AL61D
CAM BANK1 (passenger side) - 23731-6J90D

Good Luck!
-Icer