A/C part question?

[DPF 84 Hurst]

Hi. Can anyone tell me what this is behind the overflow tank on the cutlass. I’m continuing to put together my car, but when it was disassembled a few years ago that part got lost. Thank you

 

[ck80]

Hi. Can anyone tell me what this is behind the overflow tank on the cutlass. I’m continuing to put together my car, but when it was disassembled a few years ago that part got lost. Thank you

Looks like a MAP sensor.

 

[jcelk]

yes a map sensor you need it if still using the computer controlled carb system or throttle body injection

 

[69hurstolds]

Manifold Differential Pressure sensor for Olds V8 cars with CCC.

It's usually mistaken for a MAP sensor, but it works differently. Cannot mix and match those. Although it appears you won't need it if you're putting in an LS. So I wouldn't worry about it.