1990 egr sensor location

[surfjeepzx]

Hello,
New to this forum and have a quick question for the pros. On a 1990 MGM, 5.0 liter F.I., where is/are the egr sensors located. My Moms car had the "check engine" light on and I pulled a coce "34". Per the code book this shows as the egr sensor. Tried reseting and the code is current which tells me it's a hard fail. I suspect the 2 vacuum switches which are at the rear top of the plenum are the control switches for the egr valve located next to the right exhaust manifold.

I appreciate the help

[6502dude]

Check out the EGR system before replacing sensor on spec.

Try pulling vacuum on EGR value to determine if it is operational.

Also, check gas recovery tube. It is a thin walled tube and often prone to rust thru, or breaks off at end.

[auto trainy]

I think its right at the EGR valve.