4to6 Inactive Members 1 Member For: 12y 5m 27d Posted 22/02/13 06:54 AM Share Posted 22/02/13 06:54 AM Any result on this problem - I have exactly the same, have replaced leads, coils and plugs. Link to comment https://www.fordxr6turbo.com/forum/topic/83909-wont-boost-past-4000-rpm/page/3/#findComment-1365555 Share on other sites More sharing options...
ratter Member 6,793 Member For: 19y 30d Gender: Male Location: @ my laptop Posted 22/02/13 07:42 AM Share Posted 22/02/13 07:42 AM leads?? Link to comment https://www.fordxr6turbo.com/forum/topic/83909-wont-boost-past-4000-rpm/page/3/#findComment-1365573 Share on other sites More sharing options...
heathb New Member 19 Member For: 12y 5m 18d Gender: Male Posted 23/02/13 03:08 AM Author Share Posted 23/02/13 03:08 AM no result as of yet.. still looking into it. Link to comment https://www.fordxr6turbo.com/forum/topic/83909-wont-boost-past-4000-rpm/page/3/#findComment-1365716 Share on other sites More sharing options...
trbo 6 Member 230 Member For: 21y 3m 24d Gender: Male Posted 25/02/13 02:36 AM Share Posted 25/02/13 02:36 AM I am having the same issue. My car has new coils and plugs. Did a test run with no air filter and no change.I have a new a1000 pump and custom surge so doubt it's the pump, unless the in tank is stuffed, but not sure how it would cause this issue. It's going back to the tuner next week to have a look. Link to comment https://www.fordxr6turbo.com/forum/topic/83909-wont-boost-past-4000-rpm/page/3/#findComment-1366322 Share on other sites More sharing options...
Bonjaz Donating Members 1,841 Member For: 16y 6m 18d Gender: Male Location: CQ Posted 25/02/13 02:58 AM Share Posted 25/02/13 02:58 AM so its been happening since installing the new pump and surge? if that's the case that's a pretty good indication that its something to do with the problem... Link to comment https://www.fordxr6turbo.com/forum/topic/83909-wont-boost-past-4000-rpm/page/3/#findComment-1366324 Share on other sites More sharing options...
trbo 6 Member 230 Member For: 21y 3m 24d Gender: Male Posted 25/02/13 03:27 AM Share Posted 25/02/13 03:27 AM The pump was installed about a month ago and then tuned not long after. The car was running fine up until this week, just in time to stuff up my Powercruise weekend. Link to comment https://www.fordxr6turbo.com/forum/topic/83909-wont-boost-past-4000-rpm/page/3/#findComment-1366328 Share on other sites More sharing options...
Stevecoutts Member 3 Member For: 12y 4m 3d Gender: Male Location: Sydney NSW Posted 25/02/13 09:09 AM Share Posted 25/02/13 09:09 AM Hi, I have a BA 2003 XR6T with the same issue, I have replaced fuel filter, coils, plugs, PVC valve, air filter and had the throttle body cleaned with no luck. It still will not go beyond 4000rpm on boost. Any more suggestions on this problem? Link to comment https://www.fordxr6turbo.com/forum/topic/83909-wont-boost-past-4000-rpm/page/3/#findComment-1366418 Share on other sites More sharing options...
trbo 6 Member 230 Member For: 21y 3m 24d Gender: Male Posted 28/02/13 01:37 AM Share Posted 28/02/13 01:37 AM Have been thinking about this a bit more. My exhaust has been modified recently and is randomly touching the body in one section. Could this be affecting the knock sensor and have the ecu pull timing? Link to comment https://www.fordxr6turbo.com/forum/topic/83909-wont-boost-past-4000-rpm/page/3/#findComment-1367370 Share on other sites More sharing options...
heathb New Member 19 Member For: 12y 5m 18d Gender: Male Posted 03/03/13 12:50 AM Author Share Posted 03/03/13 12:50 AM Ok the problem is fixed... strangely enough it was to do with the throttle body. I took it off and gave it full clean, noticed that the bolts were a little on the loose side, also cleaned the plugs with WD40 then blew them out with the air compressor. took off the TPS and also cleaned in there. put her all back together and made sure all the bolts and connections were done up properly and now she boosts right through all gears.such an easy fix that didn't cost a thing and only took about an hour of my time. Link to comment https://www.fordxr6turbo.com/forum/topic/83909-wont-boost-past-4000-rpm/page/3/#findComment-1368304 Share on other sites More sharing options...
freeze_dk I am dissatisfied with my current employment situation Donating Members 8,610 Member For: 18y 8m 29d Gender: Male Posted 03/03/13 07:21 AM Share Posted 03/03/13 07:21 AM On 22/02/2013 at 7:42 AM, ratter said: leads??Yeah. The ones that run to the dizzy 1 Link to comment https://www.fordxr6turbo.com/forum/topic/83909-wont-boost-past-4000-rpm/page/3/#findComment-1368374 Share on other sites More sharing options...
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