chris aka fonz Posted May 29, 2005 Share Posted May 29, 2005 HI just got home after being out in the car , got a problem . I was tanking it along seeing off a sierra cosworth when all of a sudden it held back at around 130 and i lost boost , was running at 1.2 , now about 0.5 . Whats going on guys ? Link to comment Share on other sites More sharing options...
Homer Posted May 29, 2005 Share Posted May 29, 2005 Sounds like fuel cut - Was it a momentary loss of power? Do you have the TRL FCD? That raises the fuel cut level to 1.25bar. Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 29, 2005 Author Share Posted May 29, 2005 i have a hks fcd . Link to comment Share on other sites More sharing options...
Timwildman Posted May 29, 2005 Share Posted May 29, 2005 Was there or is there any smoke? could be a turbo pipe blown off? Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 29, 2005 Author Share Posted May 29, 2005 didnt see any smoke , had a look under the bonnet cant see or smell anything ! Link to comment Share on other sites More sharing options...
Ian C Posted May 29, 2005 Share Posted May 29, 2005 Deffo sounds like a hose blowing off, try the ones at the back of the bay, on the left, at the intake air control valve... -Ian Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 29, 2005 Author Share Posted May 29, 2005 ill go outside and check it out . thanx for all ya help guys Hopefully nothing too serious ! Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 29, 2005 Author Share Posted May 29, 2005 just bin out cant see any hoses off , ?????????? Link to comment Share on other sites More sharing options...
absz Posted May 29, 2005 Share Posted May 29, 2005 its most likely one of the induction hoses that run from the intercooler to throttle body. have a look from the top between the fan and rad to see if one has come off, might be hard to notice as they just pull away slightly. same thing has happened to me on two different supras now at speeds. Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 29, 2005 Author Share Posted May 29, 2005 cheers ill check that out , ill let you know if i find it. Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 29, 2005 Author Share Posted May 29, 2005 ok ive looked and they all seem fine......... any more ideas ? Link to comment Share on other sites More sharing options...
Clarkey Posted May 29, 2005 Share Posted May 29, 2005 Maybe teeny tiny splits in the hoses ?? Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 29, 2005 Author Share Posted May 29, 2005 seems to be a real sudden loss of power , would small splits in the hoses do that , been running good all day ! Link to comment Share on other sites More sharing options...
Clarkey Posted May 29, 2005 Share Posted May 29, 2005 IIRC - from reading on here, split or brittle hoses will cause boost leaks. Have you run your car in TTC mode to diagnose if the both turbos are working correctly ? Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 29, 2005 Author Share Posted May 29, 2005 not brilliant with the lingo mate TTC ? sorry for being a dumbass . Link to comment Share on other sites More sharing options...
Clarkey Posted May 29, 2005 Share Posted May 29, 2005 I can't remember what it stands for exactly, but it's running the turbos in parallel instead of sequential. I think Ian C has a thread on here, that explains how you do the mod. Link to comment Share on other sites More sharing options...
Clarkey Posted May 29, 2005 Share Posted May 29, 2005 True Twin Conversion http://www.mkiv.com/techarticles/ttc/ttc.htm Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 29, 2005 Author Share Posted May 29, 2005 Cheers , has anyone done this and left them working together like that or is it better for them to work sequentially ? Ill have a look tomorrow , see if i can see any splits in the hoses . Link to comment Share on other sites More sharing options...
heckler Posted May 29, 2005 Share Posted May 29, 2005 Cheers , has anyone done this and left them working together like that or is it better for them to work sequentially ? Ill have a look tomorrow , see if i can see any splits in the hoses . i have it swtichable (ETTC) - sequential or True Twin (TTC)... look here for ETTC Or Here for TTC Link to comment Share on other sites More sharing options...
Gazboy Posted May 29, 2005 Share Posted May 29, 2005 How much petrol did you/do you have in the tank? I was racing a Griffith once, when on low fuel (like real low), when something happened like running in to the 112mph limiter (mine is delimited), just wouldn't pull over 4000rpm. Had to stop at a petrol station anyway, filled up, found a large stretch and gunned it, revved clean in 3rd (auto) till well over 6k. I'm not saying this is the cause of your problem, but is it worth thinking about??? Link to comment Share on other sites More sharing options...
Geezabloke Posted May 29, 2005 Share Posted May 29, 2005 Check the small hoses feeding your actuators at the top rear left above the turbo pipework. If one of these has come loose they can have various effects from loss of boost pressure (varying) to non activation of turbo 2. Ive had these pop off regularly over the last year or so, i have now secured with small cable ties. Hope this made some sense? Dave Link to comment Share on other sites More sharing options...
TrickTT Posted May 29, 2005 Share Posted May 29, 2005 How much petrol did you/do you have in the tank? I was racing a Griffith once, when on low fuel (like real low), when something happened like running in to the 112mph limiter (mine is delimited), just wouldn't pull over 4000rpm. Had to stop at a petrol station anyway, filled up, found a large stretch and gunned it, revved clean in 3rd (auto) till well over 6k. I'm not saying this is the cause of your problem, but is it worth thinking about??? I had this problem once on mine, fuel warning light had just come on and it felt like the 2nd turbo wasn't blowing. Filled it up and it was fine. Is there some kind of safety fitted to stop the engine funning too lean? Link to comment Share on other sites More sharing options...
Kev.O Posted May 30, 2005 Share Posted May 30, 2005 I had this problem once on mine, fuel warning light had just come on and it felt like the 2nd turbo wasn't blowing. Filled it up and it was fine. Is there some kind of safety fitted to stop the engine funning too lean? I've had the same thing aswell. At first you can't help but think your second turbo has gone. One positive side to this is once you've filled the car up all is ok and your real relieved-completely forgetting about the £60 you just had to shell out! Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 30, 2005 Author Share Posted May 30, 2005 my petrol light is on and was when i booted it , so maybe thats what it is , all the hoses seem intact and connected , ironic really if it was one of the hoses that had split as ive been looking at the samco kits this wk end ! ill fill her up and see what happens Link to comment Share on other sites More sharing options...
chris aka fonz Posted May 30, 2005 Author Share Posted May 30, 2005 Sorted guys , yeh must be something to do with fuel , i just filled it up and took it for a spin and its boosting fine now . Cheers for all your help Link to comment Share on other sites More sharing options...
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