Need help with rough idle
#1
Need help with rough idle
Hey yall first off im new to the forums so hope to learn a lot on here. Second i've been searching for days and can not find the answer i need. I have a 99 7.3 that was running great until the other day. I had a buddy who had a Edge evolution juice with attitude programmer he was wanting to sell so i got it for 200 bucks. I threw it on the truck and first thing i noticed was the idling started to get rough. it hasnt stalled on me but it just seems louder and not as steady. I got to readin on here that if you unplug the ICP harness and if it runs ok then it may be the issue. So i did that and the idling was fine.. but this is where it left me puzzled. I plugged the truck harness back in and left the Edge harness out of the loop and it also ran fine. Sooo it only does it when the Edge harness is hooked up. I know the programmer is good cause he just took it off his truck before he gave it to me. I contacted Edge to see if they knew but havnt got a response cause of the holidays. Its just drivin me crazy so i hope someone on here might have an idea. Thanks in advance.
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