cainhead Posted October 5, 2013 Share Posted October 5, 2013 Anyone any ideas. Just started tonight and I'm meant to be off to SPA on Friday. First turbo seems fine and then power drops a little more than normal between turbos then car really struggles with the second turbo and juddered a little. Doesn't seem to be smoke coming out. Any ideas, all replies greatly appreciated. Thanks Quote Link to comment Share on other sites More sharing options...
thetrashcanman Posted October 5, 2013 Share Posted October 5, 2013 Got a boost gauge/controller? What is it reading/supposed to read? Quote Link to comment Share on other sites More sharing options...
girth45 Posted October 5, 2013 Share Posted October 5, 2013 I would check all the VAC pipes first. Quote Link to comment Share on other sites More sharing options...
Tsia Posted October 5, 2013 Share Posted October 5, 2013 I had this with my first set of turbos, turned out turbo 2 was dead as it took a pair of pliers to turn the shaft. It WOULD spool it, but there'd be a huge drop in power between 4000 RPM and 4700 or so, then it'd come on all of a sudden. Pretty weird. Quote Link to comment Share on other sites More sharing options...
cainhead Posted October 5, 2013 Author Share Posted October 5, 2013 Boost gauge should read about .85 bar on second turbo, but struggling around .5 Will check the vac pipes tomorrow when I can see in the light. I'm hoping it's that Quote Link to comment Share on other sites More sharing options...
cainhead Posted October 5, 2013 Author Share Posted October 5, 2013 I had this with my first set of turbos, turned out turbo 2 was dead as it took a pair of pliers to turn the shaft. It WOULD spool it, but there'd be a huge drop in power between 4000 RPM and 4700 or so, then it'd come on all of a sudden. Pretty weird. Anyway of checking this without taking half the car apart Quote Link to comment Share on other sites More sharing options...
Tsia Posted October 5, 2013 Share Posted October 5, 2013 Anyway of checking this without taking half the car apart Pretty much, yup. Quote Link to comment Share on other sites More sharing options...
thetrashcanman Posted October 5, 2013 Share Posted October 5, 2013 I think if it's struggling to boost properly mate if its not a rubbish vac hose thats a bit worn out then it'll be the shaft on number 2 turbo from the sounds of what Tsia is saying Quote Link to comment Share on other sites More sharing options...
cainhead Posted October 5, 2013 Author Share Posted October 5, 2013 Pretty much, yup. Do you know of a guide anywhere so that I could have a go at checking on this if I can't find a faulty pipe Quote Link to comment Share on other sites More sharing options...
Tsia Posted October 5, 2013 Share Posted October 5, 2013 Afraid not mate, I got another set of turbos and had them changed out. I'm sure there was a guide kicking about of how to inspect your 2nd turbo somewhere though? Quote Link to comment Share on other sites More sharing options...
Pig Posted October 5, 2013 Share Posted October 5, 2013 I think we need a sticky on this as its only going to get more common. Best thing to do is convert to TTC mode, this will help you find out if this is the common issue with the EGVR or something similar to that valve Quote Link to comment Share on other sites More sharing options...
mellonman Posted October 5, 2013 Share Posted October 5, 2013 Had read through here mate will help if you havent alrwady http://mkivsupra.net/vbb/showthread.php?35926-The-sequential-system Quote Link to comment Share on other sites More sharing options...
cainhead Posted October 5, 2013 Author Share Posted October 5, 2013 I think we need a sticky on this as its only going to get more common. Best thing to do is convert to TTC mode, this will help you find out if this is the common issue with the EGVR or something similar to that valve Hello mate, just found a guide to this online so will have a go tomorrow. Thanks for the post Quote Link to comment Share on other sites More sharing options...
cainhead Posted October 5, 2013 Author Share Posted October 5, 2013 Had read through here mate will help if you havent alrwady http://mkivsupra.net/vbb/showthread.php?35926-The-sequential-system Yeah seen a couple of times will have a good read through tonight and get my head stuck in the engine tomorrow. Anyone know the cost of replacement turbos and a good place to get them done, and how long it normally takes. Just thinking ahead Quote Link to comment Share on other sites More sharing options...
mellonman Posted October 5, 2013 Share Posted October 5, 2013 All I can say is hybrids are not worth the effort if you want more power but as a standard replacement are fine, Cr turbos do a stock ceramic replacent with your old turbos but I cant remeber the price of that though Quote Link to comment Share on other sites More sharing options...
mplavery Posted October 5, 2013 Share Posted October 5, 2013 Have a look at this thread http://www.mkivsupra.net/vbb/showthread.php?257946-No-Boost-on-2nd-Turbo-SOLVED-***NOT-SOLVED****** Quote Link to comment Share on other sites More sharing options...
Tsia Posted October 5, 2013 Share Posted October 5, 2013 The price of going hybrid is pretty high, if you're including the labour of removing and replacing your turbos, you're probably looking at 1300+ Quote Link to comment Share on other sites More sharing options...
cainhead Posted October 5, 2013 Author Share Posted October 5, 2013 Have a look at this thread http://www.mkivsupra.net/vbb/showthread.php?257946-No-Boost-on-2nd-Turbo-SOLVED-***NOT-SOLVED****** Thank you for posting that. It's a good read. I have a feeling it's the inter cooler pipe as I replaced this about 3 weeks ago and it popped of I over fuels the engine. I don't think I have reconnected it properly. Will check this first. Did you find any benefits with running ttc? Cheers Quote Link to comment Share on other sites More sharing options...
thetrashcanman Posted October 6, 2013 Share Posted October 6, 2013 Thank you for posting that. It's a good read. I have a feeling it's the inter cooler pipe as I replaced this about 3 weeks ago and it popped of I over fuels the engine. I don't think I have reconnected it properly. Will check this first. Did you find any benefits with running ttc? Cheers If the intercooler pipe has popped off mate or even just slightly popped of mate it wouldn't boost at all, like not even go onto the second turbo. At least from my experience. Did you replace the plugs and reset the ECU when the hose popped off? TTC's a good way to diagnose problems with the twin system, also marginally better for fuel economy and a lot smoother power delivery. Quote Link to comment Share on other sites More sharing options...
mplavery Posted October 6, 2013 Share Posted October 6, 2013 Thank you for posting that. It's a good read. I have a feeling it's the inter cooler pipe as I replaced this about 3 weeks ago and it popped of I over fuels the engine. I don't think I have reconnected it properly. Will check this first. Did you find any benefits with running ttc? Cheers I did not actually get to try out TTC and it was still not boosting up .... I like feeling two turbos kicking in anyways so I have kept it sequential Quote Link to comment Share on other sites More sharing options...
cainhead Posted October 6, 2013 Author Share Posted October 6, 2013 If the intercooler pipe has popped off mate or even just slightly popped of mate it wouldn't boost at all, like not even go onto the second turbo. At least from my experience. Did you replace the plugs and reset the ECU when the hose popped off? TTC's a good way to diagnose problems with the twin system, also marginally better for fuel economy and a lot smoother power delivery. No did none of this, how would I reset the ecu, and why would I need to change the plugs. Cheers Quote Link to comment Share on other sites More sharing options...
cainhead Posted October 6, 2013 Author Share Posted October 6, 2013 I have just taken the inter cooler pipes of and some of the connections were not great. Also the smic looks terrible, can't see much light through it. Whilst the pipes are off would it be worth giving them a clean. They are a little oiley inside Quote Link to comment Share on other sites More sharing options...
thetrashcanman Posted October 6, 2013 Share Posted October 6, 2013 No did none of this, how would I reset the ecu, and why would I need to change the plugs. Cheers disconnect the battery for about a minute, reconnect it fire it up let it idle, if it idles rough then take it for a gentle drive, it will eventually sort itself out, if the intercooler pipe work was off then you could have confused the ecu and it would have sent more fuel in I believe, that can bugger the spark plugs, so might be worth looking at them Quote Link to comment Share on other sites More sharing options...
cainhead Posted October 6, 2013 Author Share Posted October 6, 2013 disconnect the battery for about a minute, reconnect it fire it up let it idle, if it idles rough then take it for a gentle drive, it will eventually sort itself out, if the intercooler pipe work was off then you could have confused the ecu and it would have sent more fuel in I believe, that can bugger the spark plugs, so might be worth looking at them Ok I see. Yeah I would say it dumped more fuel in as I had a lot of black smoke. However still doesn't sound like any plugs are missing, but will take a look tomorrow. I took off all the inter cooler piping gave it a clean and put it back together, unfiortunately the bracket that holds the main pipe underneath the radiator had rusted and the bolts sheared. I put the pipe work back on making sure it was connected securely and took it out. Just as the second turbo came in one of the pipes popped again. But just before it did it looked as if the turbo was boosting again and felt good. Hoping that I can fabricate a bracket and that's problem solved. If not will try ttc. Thanks for the help Quote Link to comment Share on other sites More sharing options...
thetrashcanman Posted October 7, 2013 Share Posted October 7, 2013 Ok I see. Yeah I would say it dumped more fuel in as I had a lot of black smoke. However still doesn't sound like any plugs are missing, but will take a look tomorrow. I took off all the inter cooler piping gave it a clean and put it back together, unfiortunately the bracket that holds the main pipe underneath the radiator had rusted and the bolts sheared. I put the pipe work back on making sure it was connected securely and took it out. Just as the second turbo came in one of the pipes popped again. But just before it did it looked as if the turbo was boosting again and felt good. Hoping that I can fabricate a bracket and that's problem solved. If not will try ttc. Thanks for the help Not a problem mate, hope you manage to fix it Quote Link to comment Share on other sites More sharing options...
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