smallblocked Report post Posted November 12, 2010 need help trouble shooting a/c wiring ... i have search on here about the evp discharge temp sensor. my a/c works when it wants to... blow air when turned on ... but compressor doesn't engage all the time... the Hvac system i have a the manual system... does this use a evp temp sensor. if so how to you trouble shoot it.... thanks Quote Share this post Link to post Share on other sites