Tim Staunton Member 2 Member For: 13y 5m 12d Posted 30/11/11 12:48 PM Share Posted 30/11/11 12:48 PM Hey Guys,Recently bought a 2005 BA MKII XR6T Ute and I love it! Only 1 issue (so far). It seems to lose power or boost pressure or something under full throttle. It seems like the car is choking and it bogs out. I have a flash tuner that I can change the boost between factory, 8PSI and 10psi. I looked into the problem and from what I found it seemed the ignition coils and plugs were at fault. These were replaced and the problem was solved... or so I thought. Its definitely better than before and the car can run 10PSI now (was horrible before) but the bogging out under full throttle has returned. I've had a recommendation to have a de-carbon service but I don't know if that would help. Really appreciate any help anyone could offer! Really loving the forum and especially the boosted falcon ;D Cheers! Tim. Link to comment https://www.fordxr6turbo.com/forum/topic/77983-losing-powerboost-under-full-throttle-as-if-choking/ Share on other sites More sharing options...
freeze_dk I am dissatisfied with my current employment situation Donating Members 8,610 Member For: 18y 7m 14d Gender: Male Posted 30/11/11 01:01 PM Share Posted 30/11/11 01:01 PM Clean throttlebodyGap/replace plugsGet rid of the generic tunes Link to comment https://www.fordxr6turbo.com/forum/topic/77983-losing-powerboost-under-full-throttle-as-if-choking/#findComment-1164577 Share on other sites More sharing options...
unclewal Donating Members 583 Member For: 14y 7m 22d Posted 30/11/11 01:16 PM Share Posted 30/11/11 01:16 PM o2 sensors? Link to comment https://www.fordxr6turbo.com/forum/topic/77983-losing-powerboost-under-full-throttle-as-if-choking/#findComment-1164581 Share on other sites More sharing options...
JVK Silver Donating Members 751 Member For: 19y 4m 24d Gender: Male Location: North West Hot Hell,VIC Posted 30/11/11 09:00 PM Share Posted 30/11/11 09:00 PM Im with what Freeze dk said.You might also want to check or replace the fuel filter and get the fuel pump tested to make sure it supplies within specs.If you are going to run the generic tunes run the 8lb tune till you get a custom tune not the 10lb one. Link to comment https://www.fordxr6turbo.com/forum/topic/77983-losing-powerboost-under-full-throttle-as-if-choking/#findComment-1164617 Share on other sites More sharing options...
bjc Donating Members 2,823 Member For: 21y 8m 8d Gender: Male Location: Townsville Posted 01/12/11 02:29 AM Share Posted 01/12/11 02:29 AM Engine could be running lean? Mine did something similar years ago when I did the intank pump mod and used normal fuel hose at the time and it wasn't submersible safe. Ended up the hose had split so I had little fuel pressure! Link to comment https://www.fordxr6turbo.com/forum/topic/77983-losing-powerboost-under-full-throttle-as-if-choking/#findComment-1164677 Share on other sites More sharing options...
Tim Staunton Member 2 Member For: 13y 5m 12d Posted 01/12/11 02:41 AM Author Share Posted 01/12/11 02:41 AM Thanks heaps. Yer I replaced the coils and plugs very recently but I might check the gap again. What would you guys recommend? 0.8mm? Also the throttle body was replaced just before I bought it too. Just drove it home from work though and I think it just changed to an XR5T :/ so I think I really need to check my coils and plugs. I'll let you know how it turns out. Any more suggestions appreciated. Thanks Link to comment https://www.fordxr6turbo.com/forum/topic/77983-losing-powerboost-under-full-throttle-as-if-choking/#findComment-1164679 Share on other sites More sharing options...
Ninka Donating Members 1,850 Member For: 22y 4m 19d Gender: Male Location: Perth, WA Posted 08/12/11 11:58 AM Share Posted 08/12/11 11:58 AM Could also be your tune.Boost mapping needs to be accurate and if that is not the case, then your engine will shut down the boost, only for it to return again after a second or two. Especially seems to happen in the lower RPM ranges. Link to comment https://www.fordxr6turbo.com/forum/topic/77983-losing-powerboost-under-full-throttle-as-if-choking/#findComment-1167395 Share on other sites More sharing options...
09sr5 Member 56 Member For: 14y 7m 21d Posted 10/12/11 04:02 AM Share Posted 10/12/11 04:02 AM I had a metal cat that the metal bit had dislodged and blew down the pipe and turned sideways. Gave driving impressions of ignition breakdown at high revs. Might be something to look at Link to comment https://www.fordxr6turbo.com/forum/topic/77983-losing-powerboost-under-full-throttle-as-if-choking/#findComment-1167856 Share on other sites More sharing options...
Periklis Member 67 Member For: 14y 9m 3d Posted 21/05/12 06:45 AM Share Posted 21/05/12 06:45 AM Exact same problem I am having, although mines tottaly stock.. Did you end up working out what the problem was? I replaced my coils with second hand ones roughly 8 months ago, changed the spark plugs, they are currently gapped at 1.1 which I was told was stock gapping.. Link to comment https://www.fordxr6turbo.com/forum/topic/77983-losing-powerboost-under-full-throttle-as-if-choking/#findComment-1240750 Share on other sites More sharing options...
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