hey guys a few months ago my egr tube that conects to the exhaust between the ctas broke off. i blocked it off so it wouldnt suck any dirt in, then my truck started giving me code 332 (egr valve opening not detected) but i delt with it cause i dint realy think it was hurting. then one day i decided to reconect the tube but then my truck started giving me codes 332 and 327 (DPFE or EVP circuit below minimum voltage of 0.2 volts) and my temp gauge started reading real low. i didnt know what to do about this so i just reblocked off the tube so im just getting code 332 now but now my temp gauge doesnt read at all no matter how far i drive....so far wut ive done to try and fix this is checked all the fuses checked the temp sending unit (but i am second guessing if i did it right) i have changed my egr valve and upper radiator hose and topped off my coolant off. any ideas as to what could be wrong?

 

i forgot to mention a few things my truck is a 95 4.9 auto and also i am not to concerend about the egr valve because i am planing on getting a egr block off but i would like to fix the temp gauge even though the stock gauges are not very accurate i would like to have a rough ideal of where my engine temp is

 

change your thermostat and repair the egr system, might want to remove the egr and inspect for carbon build up under it---I don't see what truck/engine/year so thats all I can say

 

its a 95 f150 with a 4.9