Jim_1979 Posted April 6, 2008 Share Posted April 6, 2008 The exhaust gas valve sticks on my car, but I've got another actuator for it. So, where does it go exactly and how do you go about fitting it? thanks in advance! Quote Link to comment Share on other sites More sharing options...
Homer Posted April 6, 2008 Share Posted April 6, 2008 A nightmare job Are you replacing just the actuator of the valve itself? Remove turbo's and system, remove exhaust to get acess to the bolts. Remove and replace. It's 2nd greatest PITA job to do on a Supra. Quote Link to comment Share on other sites More sharing options...
Jim_1979 Posted April 6, 2008 Author Share Posted April 6, 2008 Just the actuator.... does that make it any easier? Quote Link to comment Share on other sites More sharing options...
Smellywelshman Posted April 6, 2008 Share Posted April 6, 2008 A nightmare job Are you replacing just the actuator of the valve itself? Remove turbo's and system, remove exhaust to get acess to the bolts. Remove and replace. It's 2nd greatest PITA job to do on a Supra. eeeeeeeeeeeeerm, whats the fost un then dood?!? Quote Link to comment Share on other sites More sharing options...
Supradoopa Posted April 6, 2008 Share Posted April 6, 2008 What kind of problems are you having with the actuator in the first place is it sticking. I'm getting mine changed at Envy now, fingers crossed it works. Quote Link to comment Share on other sites More sharing options...
Jim_1979 Posted April 6, 2008 Author Share Posted April 6, 2008 I was told by previous owner it was sticking. Exhaust gets quite loud when second turbo spools up etc ad stays loud for a while. If I take it easy, it quietens down after a period. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 7, 2008 Share Posted April 7, 2008 I was told by previous owner it was sticking. Exhaust gets quite loud when second turbo spools up etc ad stays loud for a while. If I take it easy, it quietens down after a period. That would be quite normal behaviour, as the valve opens up for second turbo to work, what other symptoms do you have? are you making full boost? Quote Link to comment Share on other sites More sharing options...
Jim_1979 Posted April 7, 2008 Author Share Posted April 7, 2008 Yeah... 0.8bar low setting, 1.15 when on high setting. So it's possible that there's not actually a problem in the first place. Any other symptoms of the EGBV not working properly? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 7, 2008 Share Posted April 7, 2008 You would struggle to make any boost from the second turbo if the EGBV was not opening, as you are making 1.15 i doubt thats your problem. Quote Link to comment Share on other sites More sharing options...
Scoboblio Posted April 7, 2008 Share Posted April 7, 2008 Exhaust gets quite loud when second turbo spools up etc ad stays loud for a while. If I take it easy, it quietens down after a period. Mine used to do this, always told myself it was probably my imagination. Never had any boosting issues, it would just be a bit louder when on a spirited drive, even if I started cruising after giving it a bit of welly. Quote Link to comment Share on other sites More sharing options...
Jim_1979 Posted April 7, 2008 Author Share Posted April 7, 2008 Used to do this? I take it it's all fine then and the previous owner was mis-informeD? Quote Link to comment Share on other sites More sharing options...
Ian C Posted April 7, 2008 Share Posted April 7, 2008 Ahem. The exhaust gas bypass valve (EGBV) is the thing that controls boost on the first turbo and prespools the second one. It lives on the second turbo. The exhaust gas CONTROL valve lets the second turbo flow exhaust gas normally and lives on the downpipe from the turbos. Which one is it you are looking to get replaced? -Ian Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 7, 2008 Share Posted April 7, 2008 Good point, i should have been paying more attention, i would presume its the EGCV hes talking about? waits to hear more. Quote Link to comment Share on other sites More sharing options...
Scoboblio Posted April 7, 2008 Share Posted April 7, 2008 Used to do this? I take it it's all fine then and the previous owner was mis-informeD? Sorry should've explained, the only reason it 'used' to do it is because I've sold it. Having had no problems with the car's running (boosted fine) I never looked into it - just assumed it was either my imagination or a bit of high tec wizardry. Quote Link to comment Share on other sites More sharing options...
Jim_1979 Posted April 7, 2008 Author Share Posted April 7, 2008 I don't know what needs changed if anything... This is the info that was in the for sale thread... "the only down side is the gas exhaust valve sticks when you first spool up the secound turbo , so if you like your car a bit loud then no probs but if your like me and just potter about in the car you might want to change it" Any ideas? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 7, 2008 Share Posted April 7, 2008 "the only down side is the gas exhaust valve sticks when you first spool up the secound turbo , so if you like your car a bit loud then no probs but if your like me and just potter about in the car you might want to change it" I think by the sound of it the previous owner was not at all certain what the problem, was,if any! do you notice any hesitance in the transition on the second turbo? and if he just pottered around then the second turbo would not be coming online, it would only become louder at higher RPM, this is all presuming its the EGCV hes talking about. Quote Link to comment Share on other sites More sharing options...
hiten55 Posted April 7, 2008 Share Posted April 7, 2008 eeeeeeeeeeeeerm, whats the fost un then dood?!? heater matrix id guess...... Quote Link to comment Share on other sites More sharing options...
Supradoopa Posted April 7, 2008 Share Posted April 7, 2008 So what happens if the second turbo doesnt spool up and the egcv actuator arm is stuck open whats to blame there? Quote Link to comment Share on other sites More sharing options...
Jim_1979 Posted April 7, 2008 Author Share Posted April 7, 2008 "the only down side is the gas exhaust valve sticks when you first spool up the secound turbo , so if you like your car a bit loud then no probs but if your like me and just potter about in the car you might want to change it" I think by the sound of it the previous owner was not at all certain what the problem, was,if any! do you notice any hesitance in the transition on the second turbo? and if he just pottered around then the second turbo would not be coming online, it would only become louder at higher RPM, this is all presuming its the EGCV hes talking about. No real obvious hesitancy in the transition that I notice. I can't remember what it was like compared to my other TT. I'll actually film it one day very soon to see if it seems like it should be. I mean film me booting it so you can see turbo changes etc. The car is very loud anyway. lol Quote Link to comment Share on other sites More sharing options...
Ian C Posted April 8, 2008 Share Posted April 8, 2008 If it is the control valve I think you can take it off without removing the turbos. Also, there are plenty about on the 2nd hand market. However, it sounds like you need to do a lot more diagnostic work to find out what the actual problem is before randomly changing bits for ££s... -Ian Quote Link to comment Share on other sites More sharing options...
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