kill1308 Posted April 6, 2010 Share Posted April 6, 2010 Both turbos should spool up in first gear. Have you guys who are having problems got boost gauge fitted? Yes Nic, I have a boost gauge fitted, could this be part of the problem? Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted April 6, 2010 Share Posted April 6, 2010 Yes I have a boost gauge too, I will have a definitive check this evening. Redline in first, then check peak boost on the gauge. Quote Link to comment Share on other sites More sharing options...
Nic Posted April 6, 2010 Share Posted April 6, 2010 Yes Nic, I have a boost gauge fitted, could this be part of the problem? No not the problem, but what boost readings at what rpm are you seeing when you are having the problem. Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted April 6, 2010 Share Posted April 6, 2010 Well, test successfully carried out, floor it in 1st, trac control off, redline........peak boost seen as 1.18. Both tubbys are coming on for sure......1st gear is savage Quote Link to comment Share on other sites More sharing options...
chazuk Posted April 8, 2010 Share Posted April 8, 2010 Well, test successfully carried out, floor it in 1st, trac control off, redline........peak boost seen as 1.18. Both tubbys are coming on for sure......1st gear is savage lucky sod , I will check my readings but I know its not coming on it used to spin up in first I can feel and hear theres naff all at the moment Quote Link to comment Share on other sites More sharing options...
kill1308 Posted April 9, 2010 Share Posted April 9, 2010 No not the problem, but what boost readings at what rpm are you seeing when you are having the problem. I get about 0.7-0.8 bar in first gear, if I push it with the TC off, it does seem to come in but later in the rev-range than normal. Seems to be a lot of people experiencing the same issue. Quote Link to comment Share on other sites More sharing options...
Marty Posted April 9, 2010 Share Posted April 9, 2010 (edited) If you're not getting the second turbo running in then may be worth giving the Iacv valve a bit of a clean up, also giving the egbv a clean whilst you're at it The egbv is the most likely cause Edited April 9, 2010 by Marty (see edit history) Quote Link to comment Share on other sites More sharing options...
gavin.starr Posted April 9, 2010 Share Posted April 9, 2010 which one is this (egbv), is it the one that opens up the exhaust flange in the down pipe part of the exhaust Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted April 9, 2010 Share Posted April 9, 2010 Took mine for another spin seeing as the weather was nice and dry. Standing start, WOT to 5th gear. Every gear both turbo's blow. 1st gear, 2nd turbo went to 1.1bar Quote Link to comment Share on other sites More sharing options...
chazuk Posted April 10, 2010 Share Posted April 10, 2010 I will give that a go aswell ,does anyone else get this ...for example if I am in fourth give it some beans to so it builds up 1.2bar but not hold it flat out in 4 but change into 5th early then the exhaust note changes for around 3 seconds where there is no boost while something happens then I can hear the turbo spool again is this normal even if I keep my foot on the acc in the same place ? hard to explain really If you're not getting the second turbo running in then may be worth giving the Iacv valve a bit of a clean up, also giving the egbv a clean whilst you're at it The egbv is the most likely cause Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted April 10, 2010 Share Posted April 10, 2010 I will give that a go aswell ,does anyone else get this ...for example if I am in fourth give it some beans to so it builds up 1.2bar but not hold it flat out in 4 but change into 5th early then the exhaust note changes for around 3 seconds where there is no boost while something happens then I can hear the turbo spool again is this normal even if I keep my foot on the acc in the same place ? hard to explain really I had this until I fitted my Greedy boost controller. I can therefore only surmise that it was the VSV? Quote Link to comment Share on other sites More sharing options...
chazuk Posted April 10, 2010 Share Posted April 10, 2010 Cheers , does fitting a ebc do away with the VSV then ? I had this until I fitted my Greedy boost controller. I can therefore only surmise that it was the VSV? Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted April 10, 2010 Share Posted April 10, 2010 Yeah, or at least the one at the front of the engine. I'm not very good with knowledge on the numerous valves and actuators on the turbo system but this worked for me. Quote Link to comment Share on other sites More sharing options...
chazuk Posted April 11, 2010 Share Posted April 11, 2010 Yeah, or at least the one at the front of the engine. I'm not very good with knowledge on the numerous valves and actuators on the turbo system but this worked for me. Thanks I will give it a go , problem is I have a 1.2bar r-ring so my ebc I have not plugged it in but I guess if I plug it in and leave it set to off it will still bypass the vsv for me Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted June 25, 2010 Share Posted June 25, 2010 Further to this thread, mine has started doing it since having hybrids fitted. Someone else mentioned it doing it after fitting a fmic. I reckon a change in induction system may benefit an ecu reset. Ill do it tonight and report back. Quote Link to comment Share on other sites More sharing options...
Scott Posted June 25, 2010 Share Posted June 25, 2010 I was out tonight in the car and mine is the same. I just think there isn't enough load on the engine to be honest lol. Quote Link to comment Share on other sites More sharing options...
chazuk Posted June 26, 2010 Share Posted June 26, 2010 Further to this thread, mine has started doing it since having hybrids fitted. Someone else mentioned it doing it after fitting a fmic. I reckon a change in induction system may benefit an ecu reset. Ill do it tonight and report back. I tried that , it did not work hope it does for you though Quote Link to comment Share on other sites More sharing options...
Ian C Posted June 26, 2010 Share Posted June 26, 2010 I was out tonight in the car and mine is the same. I just think there isn't enough load on the engine to be honest lol. Maybe the people who get full boost in 1st gear need to eat less pies Quote Link to comment Share on other sites More sharing options...
bradleyh_15 Posted June 26, 2010 Share Posted June 26, 2010 mine does this intermittently! Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted June 26, 2010 Share Posted June 26, 2010 Ecu reset did not work, its boosting but not until 5500rpm. Im thinking its just down to the laggier hybrids. Quote Link to comment Share on other sites More sharing options...
Scott Posted June 26, 2010 Share Posted June 26, 2010 Maybe the people who get full boost in 1st gear need to eat less pies Lmao, I wish. I'm almost 19st lol. Quote Link to comment Share on other sites More sharing options...
Dodge Posted June 27, 2010 Share Posted June 27, 2010 ex toyota technician here. It is to prevent major wheelspin. this is a standard trait on supra's not to pull to hard below 10mph or something cant remember my training all to well but i think thats about right Quote Link to comment Share on other sites More sharing options...
CanisLupus Posted June 27, 2010 Share Posted June 27, 2010 ex toyota technician here. It is to prevent major wheelspin. this is a standard trait on supra's not to pull to hard below 10mph or something cant remember my training all to well but i think thats about right Sure? Is there a way round that? Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted June 27, 2010 Share Posted June 27, 2010 Right, the test then is to drive at 12-15mph in 1st, then plant it Quote Link to comment Share on other sites More sharing options...
Dodge Posted June 27, 2010 Share Posted June 27, 2010 lmao no there is no way. toyota emtec dont train technicians on mods XD hence why you find me asking about things like bov's in other threads. this thing is ecu jobby. u cant really get rid of it, and to be honest i wouldnt know where to start. an answer is possible with research. i imagine top secret know that answer XD Quote Link to comment Share on other sites More sharing options...
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