Bryan003 Posted December 16, 2016 Report Share Posted December 16, 2016 Getting a P0301 code thrown under w.o.t. normal driving the edge runs fine. What should i check first? It is a 2012 SE with 92000 miles on it. Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted December 16, 2016 Report Share Posted December 16, 2016 (edited) Have you changed the plugs yet? (Old plugs with large gaps blowing out under pressure ). http://www.myautorepairadvice.com/p0301.html Edited December 16, 2016 by enigma-2 1 Quote Link to comment Share on other sites More sharing options...
Bryan003 Posted December 16, 2016 Author Report Share Posted December 16, 2016 (edited) No i have not changed them yet. Where is cylinder 1 front or rear of the engine? i think i found out the cylinder order. 123 456 123 being closest to the firewall correct? Edited December 16, 2016 by Bryan003 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted December 16, 2016 Report Share Posted December 16, 2016 http://www.fordedgeforum.com/topic/9106-cylinder-numbering/ 1 Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted December 16, 2016 Report Share Posted December 16, 2016 Inspect all the plugs and coils carefully. If not replacing the #1 coil, move the 123 coils to 456 and the 456 coils to 123. It is suspected that extra heat trapped in Bank 1 degrades those coils faster. So even if they are working fine now, you could prolong overall service life with this swap. One thread with useful info on spark plug replacement (might be a bit different for the 2011-14 3.5s on exact details): http://www.fordedgeforum.com/topic/8724-sparkplug-replacement-job-info-with-photos/ The misfire can also be caused by a dirty injector, so run some Techron Concentrate Plus or BG 44K cleaner through the tank first. Winter fuel isn't the best to begin with and using fuel from non-top tier gas or not-so-busy gas stations can result in water & contaminants in the fuel. Definitely, cylinder 1 is a weak spot, but it is also at the end of the fuel rail, where such contaminants tend to accumulate. 1 Quote Link to comment Share on other sites More sharing options...
Bryan003 Posted December 18, 2016 Author Report Share Posted December 18, 2016 Thanks guys. I think we may have gotten some bad fuel. My wife took the car to citgo and i never go there always use shell or exxon. So with a full tank from shell it runs just as good as always! I'm still going to change the plugs in it though just because it's time for it. 1 Quote Link to comment Share on other sites More sharing options...
pickardracing Posted December 19, 2016 Report Share Posted December 19, 2016 I chased this same issue for months with 2 different dealers. They tried telling me bad gas was the culprit. It's not. Changed the plugs, hasn't done it since. 1 Quote Link to comment Share on other sites More sharing options...
Bryan003 Posted December 19, 2016 Author Report Share Posted December 19, 2016 In my case it was bad gas but will be replacing the spark plugs anyway. 2 Quote Link to comment Share on other sites More sharing options...
macbwt Posted December 24, 2016 Report Share Posted December 24, 2016 In my case it was bad gas but will be replacing the spark plugs anyway. You might have 92K on the plugs but then (think about it) how many hours are idling engine hours. I would say you are overdue. 2 Quote Link to comment Share on other sites More sharing options...
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