Hey guys new to the forum..BUt today i got the trouble codes from my 91 camaro rs..code 25, 34, and 54...i know 25 is something like a defective MAT sensor, and 34 is something with the MAP sensor..54 is the fuel pump circuit...well i just got a new MAP sensor and it fixed my cars problem at the time...I been looking for the MAT sensor but i cant find it..i have a Edelbrock open element air cleaner on the TB but no MAT sensor...Also where should i start witht the code 54?..woo i know this is pretty long, i appreciate all the help i can get..thanks