damo6 Member 85 Member For: 12y Gender: Male Location: brisbane nth Posted 14/03/16 07:49 PM Share Posted 14/03/16 07:49 PM My fg mk2 turbo has started doing this as well, on cold starts it cranks fine then the idle hunts up and down until it decides to settle.mine spends most of its time in the shed these days which is why I thought it was doing this.I drove it yesterday, it done it then after sitting for a week. Just went a fired it up now and it briefly did it.could deteriorating fuel be a cause as well? I use bp 98 in it,nothing else.im driving it more frequently at the moment to burn the fuel it has in it so I can fill it with fresh fuel and put some stabil fuel stabilizer in.I also thought the throttle body might need a clean,40thou kms, completely std driveline.could ford sort the software issue mentioned above or is it an aftermarket tune that will sort it as I plan to go down that path now its out of wty Link to comment Share on other sites More sharing options...
Clayton New Member 5 Member For: 8y 10m 9d Posted 14/03/16 11:59 PM Author Share Posted 14/03/16 11:59 PM Over the last 12 months I have used multiple tanks of fuel from different sites and brands and even played with different RON ratings along with I don't know how many dozen cans of "in tank" fuel system cleaner to no avail. All this has achieved, is to convince me even more so that in my case it is not a fuel issue, but an ignition / ECM problem (which is backed up by the last visit to my local Ford dealer, although they could not find the cause of the fault). I still clearly remember that when I picked it up from having the 90K service done, being told they had downloaded all the latest software updates to the car and this is when all the crap started happening and so I am with you now that it is more than time to give up on the dealers and find an aftermarket tuner that knows their stuff. Link to comment Share on other sites More sharing options...
woz84 Member 33 Member For: 11y 2m 17d Gender: Male Posted 13/04/16 12:16 AM Share Posted 13/04/16 12:16 AM This isn't a fault, my brothers stock 08 g6et also does it, it's how ford programmed the ecu on cold start. Just go get it tuned and you'll be able to sleep easier at night plus you'll have some more kw to play with. 1 Link to comment Share on other sites More sharing options...
Future Donating Members 116 Member For: 13y 10m 8d Gender: Male Location: Brisbane Posted 13/04/16 12:41 AM Share Posted 13/04/16 12:41 AM My ba which has a 07 bf f6 motor has the same thing, more so about 10 seconds but have never had any fault codes ref to motor. This has been more common recently and noticed to be since BP changed there 98 formula. Apparently doesnt burn as fast on cold start but dissipates quickly. Sent from my SM-G925I using Tapatalk Link to comment Share on other sites More sharing options...
FiftyOne Bronze Donating Members 1,145 Member For: 11y 6m 11d Gender: Male Posted 13/04/16 01:40 PM Share Posted 13/04/16 01:40 PM Interesting. Got any more details on this formula change? Link to comment Share on other sites More sharing options...
Future Donating Members 116 Member For: 13y 10m 8d Gender: Male Location: Brisbane Posted 13/04/16 03:16 PM Share Posted 13/04/16 03:16 PM http://www.bp.com/en_au/australia/products-services/fuels/bp-ultimate-fuels/bp-ultimate-unleaded.html It doesn't tell you the differences, this changed about 2 months ago. My tuner mentioned it burns slower while cold and the missing issue is happening in stock and tuned vehicles. So either let it warm before you drive it or see if your tuner can tune it out. Sent from my SM-G925I using Tapatalk Link to comment Share on other sites More sharing options...
Puffwagon Trust me bro... Gold Donating Members 16,049 Member For: 9y 11m 14d Gender: Male Location: South Australia Posted 13/04/16 03:18 PM Share Posted 13/04/16 03:18 PM Hp tuners ftw. It will cost more than a tune, or the same, depending on who you talk to but it's worth it. The downside is you need to know how to tune an ecu. It's not that hard lol. Although an injector slope change will fix it in all of 5 minutes (if it is the issue) I doubt a workshop would do that for you. A workshop has a reputation to uphold and would more than likely want to check the entire tune if they changed it even slightly and dyno it as well to check it. I'd buy hp tuners. I already did. I had your issue when I swapped injectors and used the calculated injector values. I also fixed it in a few minutes the next morning. I don't know if you should because I don't know your level of experience. Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 7m 13d Gender: Male Location: Adelaide Posted 13/04/16 08:18 PM Share Posted 13/04/16 08:18 PM The car is already with me update to come on Friday ..... 2 Link to comment Share on other sites More sharing options...
Puffwagon Trust me bro... Gold Donating Members 16,049 Member For: 9y 11m 14d Gender: Male Location: South Australia Posted 13/04/16 09:22 PM Share Posted 13/04/16 09:22 PM Ok. It's in good hands then. Link to comment Share on other sites More sharing options...
Future Donating Members 116 Member For: 13y 10m 8d Gender: Male Location: Brisbane Posted 14/04/16 12:01 AM Share Posted 14/04/16 12:01 AM Good stuff Jet, will be interested to hear the end result. Sent from my SM-G925I using Tapatalk Link to comment Share on other sites More sharing options...
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