code 32 on a 91 RS 5.0

got a service engine soon light checked the codes 32 is all I got. Checked the Haynes manual Differential pressure sensor WA DA FU is that ??? the local parts store says MAP sensor any help from you guys would be great, will be building a old school 4 bolt main 350 in the spring an dropping her in motor is on the stand now just getting  the parts together, cam , lifters and carb ,ran like a rapped ape in my last camaro,just waiting on more H/P before I build it again. need to keep her running till then any help?? thanks TAS...ps how to post pics so we can share ?

Well unless my book is wrong code 32 on a TBI is the EGR circuit.

Thanks Mike egr valve or map sensor is what i have been told. just throw money at it till it stops getting the new motor together for a springtime build and install me and summit racing are exchanging green for go-fast trying to post pics, gota love it to build it thanks TAS...