natedawg8t6 Posted January 15, 2014 Share Posted January 15, 2014 Hello All, I want a software update on my Cmax and took it to my local stealers last week. They told me they couldnt do it because they couldnt connect to the ECU. i think this is abit of bull tbh because i had to reprogramme an injector about a month ago and i had no problems. Is it actually worth having the firmware update? What are the pros and cons? Thanks in advance Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 16, 2014 Share Posted January 16, 2014 firmware updates can offer you some benefits, such as improved MPG and driveability, and depending what else is updated, handling can feel improved too, but to be honest, if it aint broke... Quote Link to comment Share on other sites More sharing options...
natedawg8t6 Posted January 16, 2014 Author Share Posted January 16, 2014 My mpg aint the best at the mo. 42mpg running round 49-50mpg on a run. Driving a 1.6tdci cmax. Wonder why they cant connect to the ECU when I can.... Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 16, 2014 Share Posted January 16, 2014 it could be a number of things, if the OBDII port had a loose connection at the time? alternatively, it could have been an inexperienced 'mechanic' who was connecting to the car. Quote Link to comment Share on other sites More sharing options...
natedawg8t6 Posted January 16, 2014 Author Share Posted January 16, 2014 Just baffled me, because like I said I connected to it a month or so ago to program an injector Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 16, 2014 Share Posted January 16, 2014 Does the car connect now? Quote Link to comment Share on other sites More sharing options...
natedawg8t6 Posted January 16, 2014 Author Share Posted January 16, 2014 Yes....unless ford are trying to connect to a different system... Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted January 16, 2014 Share Posted January 16, 2014 lol, maybe they are trying to connect the USB to your side of the car, and the OBDII to the serial? Quote Link to comment Share on other sites More sharing options...
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