neilp9876 Posted November 6, 2012 Share Posted November 6, 2012 Its just started this morning, but after overtaking someone the triangle warning light came on about half a second after letting off the gas. I tried it a couple of times after that and it did it again but not every time. Nothing sounds untoward and it all feels fine. Doesn't do it if i brake hard though so it may not be levels. Anyone have any thoughts as to anything common? is there an easy way to read the error codes? Quote Link to comment Share on other sites More sharing options...
johnny g Posted November 6, 2012 Share Posted November 6, 2012 Specs on your car? Quote Link to comment Share on other sites More sharing options...
Tyson Posted November 6, 2012 Share Posted November 6, 2012 Brake fluid level I would of thought. Quote Link to comment Share on other sites More sharing options...
neilp9876 Posted November 6, 2012 Author Share Posted November 6, 2012 Specs on your car? Jspec TT Auto. BPU'd but standard otherwise. Has been setup the same for a few years so this is something new. I'm going to check the fluid levels now as that would be the simplest solution. Quote Link to comment Share on other sites More sharing options...
Dnk Posted November 6, 2012 Share Posted November 6, 2012 Brake fluid level I would of thought. That would happen when he braked hard as well Quote Link to comment Share on other sites More sharing options...
Tyson Posted November 6, 2012 Share Posted November 6, 2012 That would happen when he braked hard as well I really should read all of the post Could it be a loose earth somewhere ? Is it only the warning triangle or do other lights flash up ? Quote Link to comment Share on other sites More sharing options...
neilp9876 Posted November 6, 2012 Author Share Posted November 6, 2012 Oil level and brake fluid is ok, PAS level looks to be at the top. Autobox level maybe low though. Funny thing is though that the car hasnt really been used since it did a trackday a month ago and it didn't show up any errors on the track. Its the warning triangle and the small "handbrake warning light", I think thats a general light though isnt it? Quote Link to comment Share on other sites More sharing options...
Tyson Posted November 6, 2012 Share Posted November 6, 2012 Oil level and brake fluid is ok, PAS level looks to be at the top. Autobox level maybe low though. Funny thing is though that the car hasnt really been used since it did a trackday a month ago and it didn't show up any errors on the track. Its the warning triangle and the small "handbrake warning light", I think thats a general light though isnt it? The one in the middle and the one at the bottom or just the triangle in the middle ? If it's both then it's a handbrake issue, possibly a faulty sensor ? Quote Link to comment Share on other sites More sharing options...
neilp9876 Posted November 6, 2012 Author Share Posted November 6, 2012 The one in the middle and the one at the bottom or just the triangle in the middle ? If it's both then it's a handbrake issue, possibly a faulty sensor ? Both, the big one in the middle and the handbrake warning light. Surely the big exclamation mark in the middle doesnt come on just because the handbrake is on though does it? Quote Link to comment Share on other sites More sharing options...
Tyson Posted November 6, 2012 Share Posted November 6, 2012 Yes it does, I would check to make sure the cable is adjusted properly first. Quote Link to comment Share on other sites More sharing options...
Josh Posted November 6, 2012 Share Posted November 6, 2012 Could be fuel cut if it's going over 1 bar. The weather's colder now, so will make the car boost higher, and also, if you were going uphill, the engine would be working harder, so that may show it up quicker. Mine goes slightly over 1 bar if it's cold enough, or I'm going up a hill. It's never jerked as though the fuel's cutting out, but a few warning lights come on for about 5 seconds. Edit: If the car has a FCD, or maybe something has gone wrong with the FCD. Quote Link to comment Share on other sites More sharing options...
Tyson Posted November 6, 2012 Share Posted November 6, 2012 Could be fuel cut if it's going over 1 bar. The weather's colder now, so will make the car boost higher, and also, if you were going uphill, the engine would be working harder, so that may show it up quicker. Mine goes slightly over 1 bar if it's cold enough, or I'm going up a hill. It's never jerked as though the fuel's cutting out, but a few warning lights come on for about 5 seconds. That wouldn't make the handbrake light come on though. Quote Link to comment Share on other sites More sharing options...
neilp9876 Posted November 6, 2012 Author Share Posted November 6, 2012 Could be fuel cut if it's going over 1 bar. The weather's colder now, so will make the car boost higher, and also, if you were going uphill, the engine would be working harder, so that may show it up quicker. Mine goes slightly over 1 bar if it's cold enough, or I'm going up a hill. It's never jerked as though the fuel's cutting out, but a few warning lights come on for about 5 seconds. Edit: If the car has a FCD, or maybe something has gone wrong with the FCD. The warnings are coming on after I stop using the boost so I don't think its the FCD or fuel cut. Its always been happy boosting up to 1.2 bar and its turned down at the moment, the controller is showing it at most getting to 1.03. Is there an easy way to read the diagnostic errors? Quote Link to comment Share on other sites More sharing options...
Tyson Posted November 6, 2012 Share Posted November 6, 2012 I believe there is a way to do it but I can't remember how, will do a search. here http://www.mkivsupra.net/vbb/showthread.php?35920-How-To-Check-the-diagnostics-codes&highlight=reading+error+codes Quote Link to comment Share on other sites More sharing options...
neilp9876 Posted November 6, 2012 Author Share Posted November 6, 2012 I believe there is a way to do it but I can't remember how, will do a search. here http://www.mkivsupra.net/vbb/showthread.php?35920-How-To-Check-the-diagnostics-codes&highlight=reading+error+codes Thanks for that. There are no errors stored in the ECU. Does anyone know if the autobox has its own diagnostic port? (And I will search myself for the answer this time!) Quote Link to comment Share on other sites More sharing options...
Tyson Posted November 6, 2012 Share Posted November 6, 2012 Not that I know that much but my guess would be loose wire on the handbrake sensor / faulty sensor. Silly question but are you sure the handbrake was all the way off ? Has it done it since ? Quote Link to comment Share on other sites More sharing options...
neilp9876 Posted November 6, 2012 Author Share Posted November 6, 2012 Not that I know that much but my guess would be loose wire on the handbrake sensor / faulty sensor. Silly question but are you sure the handbrake was all the way off ? Has it done it since ? I actually tried pulling the handbrake on at the time, the handbrake light comes on and off with the handbrake so I figured it was fine. I didnt recall the big exclamation mark coming on with the handbrake though but I will check that again. It only did it lifting off after accelerating hard, even then it didnt do it every time. (It was a bit slippy this morning to do to much playing). Quote Link to comment Share on other sites More sharing options...
neilp9876 Posted November 8, 2012 Author Share Posted November 8, 2012 I think it was the brake fluid. Looking at the level it looked full but in actual fact was about 2mm below the max level, filling it to just above the max appears to have stopped the warning lights. The sensor must be super sensitive. Quote Link to comment Share on other sites More sharing options...
Littler Posted November 8, 2012 Share Posted November 8, 2012 I think it was the brake fluid. Looking at the level it looked full but in actual fact was about 2mm below the max level, filling it to just above the max appears to have stopped the warning lights. The sensor must be super sensitive. It is very sensitive! Quote Link to comment Share on other sites More sharing options...
Kaan W Posted November 9, 2012 Share Posted November 9, 2012 I have this problem also. Would both lights come up if the transmssion fluid is low also? I have a new box and filled up with fluid but cant get a proper reading on the dip stick. Quote Link to comment Share on other sites More sharing options...
neilp9876 Posted November 9, 2012 Author Share Posted November 9, 2012 I have this problem also. Would both lights come up if the transmssion fluid is low also? I have a new box and filled up with fluid but cant get a proper reading on the dip stick. Not sue what warning lights come on for the gearbox, but to measure the oil the engine has to be running and you should move the selector through the gears before looking at the dipstick. Quote Link to comment Share on other sites More sharing options...
Kaan W Posted November 9, 2012 Share Posted November 9, 2012 Not sue what warning lights come on for the gearbox, but to measure the oil the engine has to be running and you should move the selector through the gears before looking at the dipstick. Yeah engine was running but only getting a cold reading. But its hard to tell as one side is dry and the other side has fluid on. Quote Link to comment Share on other sites More sharing options...
sweettom Posted November 12, 2012 Share Posted November 12, 2012 i have the same problem also occurred about two weeks ago. Was trying my supra on the motorway drove full boost when the lights came up, and pushed the breakpedal a little immediately it's gone out. After this i couldn't reproduce thus failure, but in the latter time it's succedded. I thought lot of things but neither came in. For example: it's necessary to build in some BPU parts(FCD, downpipe), because i turned up 1.2bar the pressure to the test. I thought also the break fluid and the transmission fluid are low. I saw yesterday the breakfluid level and diagnosed the fluid little up above the min line. The transmission fluid was OK. there is still the direkt filters may be didn't clear long since but drow fast this idea. In this week im trying to fill after break fluid and waiting the effect. Quote Link to comment Share on other sites More sharing options...
Havard Posted November 12, 2012 Share Posted November 12, 2012 Mine has been doing the same but I have now done 200 miles trying to replicate the fault and there is nothing. My money is on the handbrake sensor as that seems mega sensitive. I had a similar thread to this a few weeks ago. Quote Link to comment Share on other sites More sharing options...
neilp9876 Posted November 13, 2012 Author Share Posted November 13, 2012 i have the same problem also occurred about two weeks ago. Was trying my supra on the motorway drove full boost when the lights came up, and pushed the breakpedal a little immediately it's gone out. After this i couldn't reproduce thus failure, but in the latter time it's succedded. I thought lot of things but neither came in. For example: it's necessary to build in some BPU parts(FCD, downpipe), because i turned up 1.2bar the pressure to the test. I thought also the break fluid and the transmission fluid are low. I saw yesterday the breakfluid level and diagnosed the fluid little up above the min line. The transmission fluid was OK. there is still the direkt filters may be didn't clear long since but drow fast this idea. In this week im trying to fill after break fluid and waiting the effect. I think if your brake fluid is near the minimum then it will be that causing the warning. Mine has to be at the max level and maybe slightly above. Quote Link to comment Share on other sites More sharing options...
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