Hello all. I'm new to the website but not to the Mirage. I own a blue 2015 DE 5 speed with 172k on the clock. (Purchased new in May 2015 from Mentor Mitsubishi in Ohio)
On January 23rd the car began struggling to accelerate (felt like I lost a cylinder) then the check engine light came on and immediately started to flash. I took it to advance auto parts and they scanned it then told me it was code P0301 (cylinder one misfire). The next day I took it to my backyard mechanic and he replaced the ignition coils/spark plugs and rescanned it and code P0261 showed up and said it was something electrical. I then took it to my local mechanic shop and they couldn't figure it out. They told me it was either bad wiring (broken or corroded) or the ECU is defective. They wanted to order me a new ECU but for $1100 I passed on that.
Last week I purchased a used ECU from eBay for $100 (1860C141) and I'm going to have Diehl Mitsubishi program it (by my vin) and install it. They quoted me $300
My question for the group...does this sound like a failing ECU or a bad wire somewhere? My appointment with Diehl is next week and I really hope the new ECU fixes the problem
Oh yeah. I'm still driving the car. (80 miles roundtrip a day to work) The mechanic shop was able to make jumpers from #3 injector to #1 injector. This now gives me a little more power but still struggles going up hills (once I'm on the highway I can do 75-80 mph in about 30 seconds and been getting 19 mpg's too lol)
Thank you in advance for any help
I read over this guys thread as he was having the same issue as me.