proffitt25
Fusion Hybrid Member-
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Limp mode 2010 FF hybrid- code P1AOC?
proffitt25 replied to proffitt25's topic in 2010-2012 Fusion Hybrid
Actually just to add that wasn’t the final after pic. I kept cleaning and got 99% of surface shiny. -
Limp mode 2010 FF hybrid- code P1AOC?
proffitt25 replied to proffitt25's topic in 2010-2012 Fusion Hybrid
Before and after. Not too bad. I followed a guide for recalibrating idle trim with hybrid- put it in park, gas, to neutral, let it idle one minute, put it in park. Then drive 10 miles. I see other guides for non-hybrids with like shorting the battery to reset pcm and all. anyway it seems to drive well, sure looks a lot cleaner. I’ll report back if there’s an update. -
Limp mode 2010 FF hybrid- code P1AOC?
proffitt25 replied to proffitt25's topic in 2010-2012 Fusion Hybrid
It seems like the throttle body might actually be easier to get to on this hybrid than in the non-hybrids shown in most YouTube videos. I didn’t pull it off yet, but I pulled off the hose so I could get to it. The “flap” didn’t seem to move super easily to me (using a popsicle stick), but the part looked pretty clean, at least on that side. Even if it doesn’t look too difficult, I don’t want to get the part off and then decide to drive somewhere to get the cleaner. Though, maybe I should, I could take another vehicle to get it. I didn’t fiddle with it long but I couldn’t quickly get whatever electrical connector off of the throttle body. Sure I can figure it out with some effort, especially after I take the throttle body off. -
Limp mode 2010 FF hybrid- code P1AOC?
proffitt25 replied to proffitt25's topic in 2010-2012 Fusion Hybrid
I do wonder if the dealership truly checked the evap canister and found fuel leaking around it. I'll have to dig around and decide whether I want to perform that check myself too, because even if, say, I go in and clean the throttle body, I'm not going to be sure for quite a while whether the evap system is also a problem that might cause a repeat. Of course it's just harder to troubleshoot something if you can't easily repeat the behavior, for all I know it's "fixed itself" already. -
Limp mode 2010 FF hybrid- code P1AOC?
proffitt25 replied to proffitt25's topic in 2010-2012 Fusion Hybrid
Awesome guys! Thanks for the links and other options. it's nice to have another vehicle so I don't have to depend on this one-- and again, in the times I've driven it, I've had no problems since. But the wife is avoiding it mostly for now. Anyway, particularly interested in trying the free fixes, and I'll be watching some videos! -
Limp mode 2010 FF hybrid- code P1AOC?
proffitt25 replied to proffitt25's topic in 2010-2012 Fusion Hybrid
That sounds easier than other potential fixes. -
Limp mode 2010 FF hybrid- code P1AOC?
proffitt25 replied to proffitt25's topic in 2010-2012 Fusion Hybrid
Okay, I downloaded Forscan Lite for iOS and ran it, worked fine, found the P1AOC code- hybrid powertrain control module- engine disabled status: previously set DTC - not present at time of request -MIL is off for this DTC. So at least this matches with what dealer found, and would seem to be the cause of my engine failure? Still doesn't seem like it should to me. Now the question is whether to try and follow the TSB and test things myself, see if I can fix them myself, or maybe take to another mechanic that I like. There's also the wait and see if it happens again approach... -
Limp mode 2010 FF hybrid- code P1AOC?
proffitt25 replied to proffitt25's topic in 2010-2012 Fusion Hybrid
I decided to get my car from the shop, pay the $200 diagnostic, and see what I could do on my own. gonna try FORScan— I see there’s an iOS FORScan Lite now. I got the viewer free version first to see what it could see, and it couldn’t read from the PCM. If I pay to download this version do we think I’ll have the same problem and need the windows version? Or is there other reason to assume I may want the windows version and should just skip the iOS? Unfortunately harder to find a windows PC around here these days... the dealer did claim that they took off the canister and tested and found evidence of fuel leak there. I drove from dealer to emissions testing and passed just fine. He also claimed that the system detects fuel leak and goes nuclear with the limp home mode. Still seems to me no reason that an issue with the evap canister/purge valve etc should do any more than throw a check engine light. once I see if I can find this stored code (that’s what the dealer says it is, not an active code, thus why I didn’t see it with my OBD2 tool and my OBD fusion app), then I’ll decide whether to look into the evap stuff at all or pursue throttle body stuff. -
Limp mode 2010 FF hybrid- code P1AOC?
proffitt25 replied to proffitt25's topic in 2010-2012 Fusion Hybrid
Iolder, thanks for your reply also. No, I didn't see that old part, and unfortunately my notebook showing me cost of work is with the vehicle at the dealer at present. I assume, that having happened 4.5 years ago and no repeat behavior until now, that accomplished its goal and was truly done... The sad thing is the very local dealer p-ed me off a few years back, and now I'm driving it further to go to another dealer. I wish I could find a good reputable hybrid-certified mechanic, but I feel like there are some things I just have to go to a ford dealer for. It's also really difficult in my mind to do the "show me the used part" thing. It's just saying quite out loud "I don't really trust you". Maybe that's justified, but it sure sucks. -
Limp mode 2010 FF hybrid- code P1AOC?
proffitt25 replied to proffitt25's topic in 2010-2012 Fusion Hybrid
Thanks for responding! I have used Forscan before, but right now I'm using a wifi dongle OBD2 and "OBD Fusion" app on my iPhone. I used forscan before to do the battery reset thing, but I thought as far as just reading trouble codes, I should have no problem seeing these using this app. I *think* I'd been able to see other error codes before. Yeah, it's a little confusing, the whole thing. On the page you linked, this is also where I found the link to the TSB: https://www.autocodes.com/pdfview.php?pdflink=https://www.autocodes.com/uploads/ford/12-03-19.pdf&titulo=Ford Factory Service Bulletin OBDII Code P1A0C That's what Ford is following, and that's what says to replace the canister *IF* there are signs of liquid fuel exiting the canister. Then it says to perform a leak test as in WSM 303-13 (I google this and found a manual related to 2011 Ford Mustang, not sure how well that info applies to my Fusion), and if yes, replace the underwood purge valve. But what I'm not really finding is any indication that these faults would cause a limp-home mode. My general understanding is these aren't really major safety issues, especially not to the extent the engine needs to go safety mode to prevent something real bad. I see people in this forum saying there's a problem with their canister but basically it isn't worth fixing. Separately, non-hybrid, you can find youtube videos of people replacing the purge valve as a first thing to check on various models-- when the check engine light is on. again, my check engine light wasn't even on. I don't really think the hybrid makes that job any more difficult, and if not, I should definitely do that part myself and save $. The canister sounds more difficult/messy perhaps, but I think even less likely to be made more difficult because of it being a hybrid. But bottom line I'm getting pretty tempted to take my car back and think on this. -
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Maybe someone could advise. Recently wife was driving, car went to limp mode. She was driving to a friend’s house on a hill and couldn’t get up the hill. Just parked. I rescued her later, except of course it wasn’t necessary. Car drove fine on the way home and a few other small trips in following week. took it to dealership. No warning lights on the car mind you and I plugged in my OBDII sensor and found no error codes. dealership says they found P1AOC, want to replace a vapor canister, master control valve (purge valve)- mention it’s tsb 12-3-19. $1200 ($200 diagnostic is already sunk but won’t add to that $1200). But, why did they find error code when I didn’t? when I look up this TSB, I seem to find that the check engine light should have been on, but it wasn’t. Since that issue, there’s been no other indication of anything wrong. I briefly considered trying to replace these parts on my own, but I can’t find much of tutorials on these specific fixes for the hybrid, and if I have to get into high voltage situations, I think I’m out. what are the odds that this even addresses whatever issue my wife experienced? I should add that in 2016 the same thing happened and something with throttle body or an O2 sensor was replaced at the dealer, which did fix that situation. ideas?
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SpeedUSAF reacted to a post in a topic: Won't run in EV mode, ICE kicks in immediately.
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Won't run in EV mode, ICE kicks in immediately.
proffitt25 replied to markwilson66's topic in 2010-2012 Fusion Hybrid
Wow, it's so exciting what's transpired in this forum. I've wanted to comment a few times just to express pleasure for all the discussion of this topic. But even better, we got us a solution! Many many thanks to ivoh for figuring this out and sharing. Most importantly, I can confirm that it works. I am in Nashville, but I didn't even need to go find him- I used my OBD2 scanner, downloaded FORScan on an old windows laptop, and it was pretty straightforward. - I actually just realized, I didn't change the value in the "as-built" data of the BECM, but just in the BECM module- a config battery age setting, mine shows "error" as the value, I changed it to 1. I went for a drive, and the difference is immediate and obvious, back to 3 divisions of power in electric, the stutter-start seems to be gone, I'm happy. I'm getting about 41 mpg in the 50 miles or so driven since the change. Now I look forward to some discussion of ensuring this has been a relatively safe procedure -
markwilson66 reacted to a post in a topic: Won't run in EV mode, ICE kicks in immediately.
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Won't run in EV mode, ICE kicks in immediately.
proffitt25 replied to markwilson66's topic in 2010-2012 Fusion Hybrid
Of course knowing nothing about your purchase, I'd be looking for a way to back out on that deal... at least, going into the deal it would be pertinent information to gain that the battery is in bad shape and to make your purchase accordingly. Going way back in the thread, Iolder said this: "the car no longer appears to do periodic battery re-conditioning. Mine did it about every 8K miles until the problem started and then didn't seem to do it anymore." How do you know when your car is doing reconditioning? I seem to recall reading about this 6 years ago, but I'm not aware mine has ever done any sort of conditioning. -
I agree about the cold exacerbating the problem. When I took my car in to have them check it out, that was how I reported it-- on a cold morning, it seems to take forever to get going again after a stop. I don't know if ultimately there are several problems, but I feel like I'm boiling my biggest one down to either aged batteries that don't have the power to get me going or some kind of computer malfunction that makes it *think* I have aged batteries. I mean, I suppose even with a pretty dead HV battery, slamming the accelerator should kick that ICE on full blast and get me moving, independent.. but maybe it's related. Again, ultimately the dealership was no use and just took my $ for their diagnostic fee.
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Won't run in EV mode, ICE kicks in immediately.
proffitt25 replied to markwilson66's topic in 2010-2012 Fusion Hybrid
So bottom line you're saying this is expected and normal behavior, I'm getting a free recharge, not a hit to my gas mileage from an unnecessarily fired-up ICE. ok, good. Still sounds like my batteries are dying. sob.