mike8962 Member 4 Member For: 12y 6m 7d Posted 18/04/13 05:34 AM Share Posted 18/04/13 05:34 AM Hey guys, new to the forum, how you all going?Recently I noticed my BA was leaking oil from the tappet cover onto a spark plug causing a misfire, replaced all spark plug seals, vct seals and the tappet cover seal itself. Test driven the car and it is still misfiring so I assumed plugs as they were a bit old. Replaced plugs, test driven still misfiring, purchased a set of supposedly high performance coils of eBay (gave the longest warranty period, gotta mean something) and installed. Misfire isn't as bad but still hesistanting after hitting boost and at the end of the rev range. Was starting to get a bit frustrated then I noticed I only had 1/4 of a tank of fuel. Refilled my tank to the brim and tested, misfire is better but engine is still hesistanting noticeably after boost and towards the end of the revs.Now I have a SC3 Flash tuner which had the motor tuned for 10psi, also running a Hybrid intercooler (the sort that goes in one way and out the other), I am starting to think my fuel pump has shat itself and cannot feed the injectors with enough fuel. Or the PCM is cutting fuel because of too much boost, at the moment I am returning the PCM to standard to see how the problem goes.Have also tightened all exhaust bolts, replaced inlet manifold gasket, had injectors cleaned in a sonic bath.Any help would be appreciated. Link to comment https://www.fordxr6turbo.com/forum/topic/84655-ba-xr6-turbo-boosting-issue/ Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 11d Gender: Male Location: Perth Posted 18/04/13 05:40 AM Share Posted 18/04/13 05:40 AM bin aftermarket coils and fit genuine from a known supplier (ie a ford dealer) Link to comment https://www.fordxr6turbo.com/forum/topic/84655-ba-xr6-turbo-boosting-issue/#findComment-1381615 Share on other sites More sharing options...
boost69 Donating Members 737 Member For: 19y 11m 15d Posted 18/04/13 06:38 AM Share Posted 18/04/13 06:38 AM Spark plug gaps? Link to comment https://www.fordxr6turbo.com/forum/topic/84655-ba-xr6-turbo-boosting-issue/#findComment-1381623 Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 11d Gender: Male Location: Perth Posted 18/04/13 06:39 AM Share Posted 18/04/13 06:39 AM Stock gap should be okay @ 10lbs as long as they coils are up to the task. Link to comment https://www.fordxr6turbo.com/forum/topic/84655-ba-xr6-turbo-boosting-issue/#findComment-1381624 Share on other sites More sharing options...
mike8962 Member 4 Member For: 12y 6m 7d Posted 18/04/13 01:14 PM Author Share Posted 18/04/13 01:14 PM Returned the PCM to the standard tune and the misfire worsened if anything. The car does feel more powerful and torquey after putting the new aftermarket coils in. How much does a set of standard Ford coils set you back?Also running the plugs at 0.8mm gap. Considering returning the gap to standard to see if that does anything. Link to comment https://www.fordxr6turbo.com/forum/topic/84655-ba-xr6-turbo-boosting-issue/#findComment-1381785 Share on other sites More sharing options...
Mr_4.0 Member 1,096 Member For: 14y 3m 15d Posted 19/04/13 08:13 AM Share Posted 19/04/13 08:13 AM Running rough AFTER boosting etc.... Valve springs! It's ba after all. 10psi is their limit when new! Link to comment https://www.fordxr6turbo.com/forum/topic/84655-ba-xr6-turbo-boosting-issue/#findComment-1381971 Share on other sites More sharing options...
mike8962 Member 4 Member For: 12y 6m 7d Posted 19/04/13 11:43 AM Author Share Posted 19/04/13 11:43 AM sh*t aye, hoping it wasn't that serious. Anyway to definitely confirm the springs are fubar? How much does that job cost roughly? Link to comment https://www.fordxr6turbo.com/forum/topic/84655-ba-xr6-turbo-boosting-issue/#findComment-1382034 Share on other sites More sharing options...
bionicxr6t05 Bronze Donating Members 2,216 Member For: 13y 9m 7d Gender: Male Posted 19/04/13 11:50 AM Share Posted 19/04/13 11:50 AM (edited) Sounds like a combination of the curse of the aftermarket coil and valve springs, valve springs generally 800-1000 supplied and fitted Edited 19/04/13 11:50 AM by bionicxr6t05 Link to comment https://www.fordxr6turbo.com/forum/topic/84655-ba-xr6-turbo-boosting-issue/#findComment-1382037 Share on other sites More sharing options...
mike8962 Member 4 Member For: 12y 6m 7d Posted 21/04/13 07:42 AM Author Share Posted 21/04/13 07:42 AM Ok I might check out fuel pressure when boosting before I start forking out dosh for the valve springs but thanks for all the advice. I'd hope it would be the fuel pump before the valve springs or the new coils I just put in. Link to comment https://www.fordxr6turbo.com/forum/topic/84655-ba-xr6-turbo-boosting-issue/#findComment-1382446 Share on other sites More sharing options...
jas98 Member 1,046 Member For: 12y 9m 11d Gender: Male Location: Maryborough Qld Posted 30/04/13 03:39 PM Share Posted 30/04/13 03:39 PM are they the :drifters" brand coils? Link to comment https://www.fordxr6turbo.com/forum/topic/84655-ba-xr6-turbo-boosting-issue/#findComment-1385238 Share on other sites More sharing options...
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