i have a 2002 z28 changing valley pan gasket getting ready to put intake back on found a sensor broke in rear long black cylindicral sensor one wire sits on left side near cam postion sensor oil pressure switch or sending unit ?
please help i have to go get the part before store closes

 

oil pressure sensor. probably going to run you close to $50

 

its the oil pressure switch they are very easy broken while pulling the intake

 

Your local parts store will have the oil sending unit, you may need the special socket aswell. In my 10 years of ls1s I've broken 2