51KBA 2005 BA MK11 turbo Member 140 Member For: 19y 1m 19d Gender: Male Location: sunshine coast Posted 15/02/15 05:25 AM Share Posted 15/02/15 05:25 AM hey guys im having some intermittent trouble with my XR6T 2005 MK11 auto , firstly back ground on the car , 42 lb injectors bigger in tank pump big nizpro cooler and 3 inch piping 2.5 inch hot side 4 inch Plazmaman turbo side intake 4 inch dump 4 inch cat to twin 2.5 to the tail been tuned Atomic valve springswhich is all kind of irrelevant seeing that this happened before any of this was done to the car so what the problem is on startup in the morning taking it for a spin its running smooth and rich with heaps of power it feels magnifecent to drive , then after a little while (say 10 minutes) as it settles into operating temperature the AFR gauge ( narrowband) , yes people I know its only narrowband and cant give a definitive gauge of the actual AFR , but why I use this as a reference is , watching the gauge when its running beautiful the gauge reads rich , when its erratic and all over the place is when it runs badly, it can run like this for a undefined time , so im not sinking the boot in . then when it comes good again it goes like a rocket ship again , but sometimes it doesnt come good again that day , until I start it the next day and its back to normal until it gets hot again ( normal operating temp )- I thought it may have been an O2 sensor so I replaced that , still no improvement - Replaced intake and throttlebody gaskets - this happened before and after tuning and nothing was found to be amiss during the tuning- the car sometimes coughs badly but only when turning right (leading a mate to point me in the direction of the BCM)- has new plugs and coils I'm really drawing a blank with this one, and I dont wanna start replacing everything until it stops , who can afford that? any help with this will be appreciated thanks - Link to comment Share on other sites More sharing options...
Bizkets is Drunk? Too heavy needs boost Member 5,929 Member For: 11y 6m 18d Gender: Male Location: Adelaide Posted 15/02/15 07:00 AM Share Posted 15/02/15 07:00 AM Fuel pump or fuel filter maybe. Link to comment Share on other sites More sharing options...
51KBA 2005 BA MK11 turbo Member 140 Member For: 19y 1m 19d Gender: Male Location: sunshine coast Posted 15/02/15 07:08 AM Author Share Posted 15/02/15 07:08 AM Fuel pump or fuel filter maybe.both new mate, cheers , did this before and after new pump and filter Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 5m Gender: Male Location: Perth Posted 15/02/15 07:12 AM Share Posted 15/02/15 07:12 AM Sounds like you've got a sik ba? 1 Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 8m 23d Gender: Male Location: Adelaide Posted 15/02/15 07:34 AM Share Posted 15/02/15 07:34 AM Boom tish 1 Link to comment Share on other sites More sharing options...
Rab WOT? Moderating Team 10,981 Member For: 11y 11m 29d Gender: Male Location: Frankston, 3199 Posted 15/02/15 07:48 AM Share Posted 15/02/15 07:48 AM Probably a stupid suggestion, but as it's intermittent and only once warm/hot - see if it ties in with the thermo's kicking in. Maybe the (slightly) extra load is highlighting a battery or other elec issue. Link to comment Share on other sites More sharing options...
51KBA 2005 BA MK11 turbo Member 140 Member For: 19y 1m 19d Gender: Male Location: sunshine coast Posted 15/02/15 08:05 AM Author Share Posted 15/02/15 08:05 AM Probably a stupid suggestion, but as it's intermittent and only once warm/hot - see if it ties in with the thermo's kicking in. Maybe the (slightly) extra load is highlighting a battery or other elec issue.thanks mate I havent thought of that cheers I'll give it a go Link to comment Share on other sites More sharing options...
Rab WOT? Moderating Team 10,981 Member For: 11y 11m 29d Gender: Male Location: Frankston, 3199 Posted 15/02/15 08:09 AM Share Posted 15/02/15 08:09 AM Wouldn't come up at the tuner's either - takes more than a dyno run to kick the thermo's off Link to comment Share on other sites More sharing options...
51KBA 2005 BA MK11 turbo Member 140 Member For: 19y 1m 19d Gender: Male Location: sunshine coast Posted 15/02/15 08:52 AM Author Share Posted 15/02/15 08:52 AM Wouldn't come up at the tuner's either - takes more than a dyno run to kick the thermo's offcheers mate , but no it doesnt seem to happen with the cutting in and out of the thermo's its much less intermittent than that but thanks anyways Link to comment Share on other sites More sharing options...
Rab WOT? Moderating Team 10,981 Member For: 11y 11m 29d Gender: Male Location: Frankston, 3199 Posted 15/02/15 08:57 AM Share Posted 15/02/15 08:57 AM No probs - was a long shotHave you checked the boot for one of these? Link to comment Share on other sites More sharing options...
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