Sweet EB Member 27 Member For: 19y 5m 25d Gender: Male Posted 29/05/08 10:04 AM Share Posted 29/05/08 10:04 AM Hi Guys,A mate of mine has an 03 MK1 T Manual. (I will have one soon!!!) The issue is that when giving it a bit of a hiding, Meaning hitting the limiter a couple of times it starts to run on 5cyl or less for a couple of minutes and then returns to normal. It doesn't make any odd noises when doing so except a major misfire even at idle after you have brought the car to a stop. As I said, this only goes on for a couple of mins regardless of throttle input. It's a major pain when having a bit of a run against someone at the lights only to have it start misfiring and loosing sh*t loads of power. Have changed a couple of things including new genuine plugs and a good quality synthetic oil but it still goes it. This only happens when you have come close or hit the limiter a couple of times under full throttle.Another mate has just bought a MK2 auto and it is doing the exact same thing.Is there a limp home mode kicking in or something??? I have read somewhere about an anti abuse mode and thought that this might be what is happening. If so how do you disable it???Any help in this matter would be appreciated. Link to comment https://www.fordxr6turbo.com/forum/topic/46073-abuse-mode/ Share on other sites More sharing options...
PURVIE Sexy Member Donating Members 524 Member For: 18y 4m 12d Gender: Male Location: Berwick, VIC Posted 29/05/08 10:13 AM Share Posted 29/05/08 10:13 AM Hey mate and If its backfiring it could be running lean or could possibly mean the fuel pump on its way out. If you can, get on on the dyno and check AFR's. Also, what mods have been done to the car? Link to comment https://www.fordxr6turbo.com/forum/topic/46073-abuse-mode/#findComment-684495 Share on other sites More sharing options...
Sweet EB Member 27 Member For: 19y 5m 25d Gender: Male Posted 29/05/08 10:35 AM Author Share Posted 29/05/08 10:35 AM Hey, thanks. Well it has a generic flash tune from one of those CAPA flash tuners but it had this symptom before it was flashed. We have reset the spark gap to .8mm like the instruction says and the thing feels very strong under all conditions except this missing problem. I would have said it was leaning out or the spark was being blown out under boost but it still misses when you pull over and let it idle but only for a couple of minutes or so and then returns to normal.It is probably something that dyno might pick up. It is just that there is a second car doing the exact same thing and I thought that it might be something that ford has in its program to stop abuse?? Link to comment https://www.fordxr6turbo.com/forum/topic/46073-abuse-mode/#findComment-684512 Share on other sites More sharing options...
hanra Into the laaaake Member 1,532 Member For: 17y 10m 8d Gender: Male Location: Nrth Qld Posted 29/05/08 11:32 AM Share Posted 29/05/08 11:32 AM Have the valve springs been replaced at all? Link to comment https://www.fordxr6turbo.com/forum/topic/46073-abuse-mode/#findComment-684566 Share on other sites More sharing options...
sleeper69 Member 179 Member For: 18y 11m 30d Gender: Male Location: melbourne Posted 29/05/08 11:34 AM Share Posted 29/05/08 11:34 AM Hey mate welcome, sounds like valve float so the valve springs might be shot!!!!maybe get your friend to see his prefered mechanic to look over it.... Link to comment https://www.fordxr6turbo.com/forum/topic/46073-abuse-mode/#findComment-684567 Share on other sites More sharing options...
smicky Go Pies!!! Donating Members 2,852 Member For: 17y 2m 6d Gender: Male Location: Vic Somewhere - Sometimes NSW Posted 29/05/08 11:36 AM Share Posted 29/05/08 11:36 AM Have you checked all your leads?Could be an issue with the leads... Link to comment https://www.fordxr6turbo.com/forum/topic/46073-abuse-mode/#findComment-684568 Share on other sites More sharing options...
PURVIE Sexy Member Donating Members 524 Member For: 18y 4m 12d Gender: Male Location: Berwick, VIC Posted 29/05/08 12:36 PM Share Posted 29/05/08 12:36 PM (edited) smicky our T's dont have leads? Edited 29/05/08 12:37 PM by PURVIE Link to comment https://www.fordxr6turbo.com/forum/topic/46073-abuse-mode/#findComment-684616 Share on other sites More sharing options...
JA2473 Member 62 Member For: 17y 1m 29d Gender: Male Posted 29/05/08 12:42 PM Share Posted 29/05/08 12:42 PM you were close... Over Boost Mode.. I had a ba11 which did the same thing.After a really hard time it drops random cylinder and takes a few mins tocome back to normal. (this is what my tuner told me). It doesnt meanyou car wont handle more boost, just needs a good tune..you also need to change gears when peak power is made not peek revs. Link to comment https://www.fordxr6turbo.com/forum/topic/46073-abuse-mode/#findComment-684619 Share on other sites More sharing options...
YPURV4 KILL,KILL,KILL,DIE,DIE,DIE, Member 2,813 Member For: 18y 11m 19d Gender: Male Posted 29/05/08 12:45 PM Share Posted 29/05/08 12:45 PM valve float for sure..high revs, burp,burp,burp,burp,burp..... valve float Link to comment https://www.fordxr6turbo.com/forum/topic/46073-abuse-mode/#findComment-684621 Share on other sites More sharing options...
bloosted Cruise Control 1,383 Member For: 19y 4m 17d Gender: Male Location: Adelaide Posted 29/05/08 12:51 PM Share Posted 29/05/08 12:51 PM Valve Springs definately Link to comment https://www.fordxr6turbo.com/forum/topic/46073-abuse-mode/#findComment-684624 Share on other sites More sharing options...
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