Yarco Posted February 12, 2015 Share Posted February 12, 2015 (edited) I just got my boost controller fixed (faulty boost solenoid) and was set up by Darren at whifbitz. All was well on the journey home, set the controller to run 1.2bar. Checked all six gears and everything was boosting fine. After showing a 5series bmw how it's done on the way home, I backed off and starting cruz'n. Got to the next round about and as I come off the roundabout I had no power, it felt like limp mode. No positive boost pressure at all and the car felt very lumpy when running. Got home and there is a rattle coming from underneath the engine. Also my wide band afr was reading 12.4 on idle. Normally it's 14.4 to 14.6. The fact that I had no power, boost and I was testing the cars limits for about 5-10 mins leads me to think bottom end failure. Anyone had this? Everyone's speculation would be appreciated before I take it to my local tuner. So hacked off, 3 month running stock boost and I finallly start running 1.2bar again and now this! #wounded Edited February 12, 2015 by Yarco (see edit history) Quote Link to comment Share on other sites More sharing options...
Lee P Posted February 12, 2015 Share Posted February 12, 2015 Most likely popped a boost pipe off I just got my boost controller fixed (faulty boost solenoid) and was set up by Darren at whifbitz. All was well on the journey home, set the controller to run 1.2bar. Checked all six gears and everything was boosting fine. After showing a 5series bmw how it's done on the way home, I backed off and starting cruz'n. Got to the next round about and as I come off the roundabout I had no power, it felt like limp mode. No positive boost pressure at all and the car felt very lumpy when running. Got home and there is a rattle coming from underneath the engine. Also my wide band afr was reading 12.4 on idle. Normally it's 14.4 to 14.6. The fact that I had no power, boost and I was testing the cars limits for about 5-10 mins leads me to think bottom end failure. Anyone had this? Everyone's speculation would be appreciated before I take it to my local tuner. So hacked off, 3 month running stock boost and I finallly start running 1.2bar again and now this! #wounded Quote Link to comment Share on other sites More sharing options...
Yarco Posted February 12, 2015 Author Share Posted February 12, 2015 Hi lee, I'm the guy who bought the black do luck front bumper off you about 2 months ago. I've blew a pipe off before but this noise sounds well different this time, plus a shocking lack of power and funny afr readings. However, I had started running 1.2 bar again and gunning it before this happend. I pray you are right mate or I could be coming down for a rebuild Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted February 12, 2015 Share Posted February 12, 2015 As above, check ALL your hoses from turbos to inlet. Quote Link to comment Share on other sites More sharing options...
Rummy Posted February 12, 2015 Share Posted February 12, 2015 Check all the vac lines around the inlet too Quote Link to comment Share on other sites More sharing options...
Scott Posted February 12, 2015 Share Posted February 12, 2015 All pointing to a boost leak mate. It'll just be a bigger leak than you've had previously. Quote Link to comment Share on other sites More sharing options...
Yarco Posted February 12, 2015 Author Share Posted February 12, 2015 All pointing to a boost leak mate. It'll just be a bigger leak than you've had previously. Ye I guess that could be right, just blew another hose in a different and more vital location (hence different affects). I might be able to sleep tonight with this in mind. Thanks guys. Your opinions and experience are always well received. Quote Link to comment Share on other sites More sharing options...
heckler Posted February 12, 2015 Share Posted February 12, 2015 Exactly same happened to be pulling onto the M3, floored it small bang/pop no boost. Blew off one of the I/C pipes! Quote Link to comment Share on other sites More sharing options...
Graham1984 Posted February 12, 2015 Share Posted February 12, 2015 Imagine how many people have problems daily and pay a garage to sort it out. We're quite lucky on here to get free diagnosis help, and decent advice/ opinions. Quote Link to comment Share on other sites More sharing options...
costas1 Posted February 12, 2015 Share Posted February 12, 2015 Pls let us know what happened when you find the problem..knowledge is power Quote Link to comment Share on other sites More sharing options...
Yarco Posted February 13, 2015 Author Share Posted February 13, 2015 Some one kill me please. Engine detonation, number one cylinder and piston fried. Is there a support number for how I'm feeling at the moment? #devastated. Everyone's speculation to why this has happened, when I have full bpu upgrades, would be appreciated. Also price to repair? JamieP want some business? That's if I don't kill my self before hand! Pictures and report from diagnostic company to follow. Quote Link to comment Share on other sites More sharing options...
Scooter Posted February 13, 2015 Share Posted February 13, 2015 So you have a restricter ring to stop it overboosting? What plugs and how old were they? Quote Link to comment Share on other sites More sharing options...
Yarco Posted February 13, 2015 Author Share Posted February 13, 2015 (edited) So you have a restricter ring to stop it overboosting? What plugs and how old were they? I knew these queries would come. New NGK plugs from Whifbitz about 6 months ago (heat range 7). Restrictor ring fitted by Whifbitz when I had full decat. Believe me I made sure I had every component I needed before I ran 1.2 bar. Clearly something was up, ahhh, where's my beer! Edited February 13, 2015 by Yarco (see edit history) Quote Link to comment Share on other sites More sharing options...
Yarco Posted February 13, 2015 Author Share Posted February 13, 2015 (edited) Image one - Healthy compression test Image two - Cylinder 1 compression test, which has nothing. Image three - Picture of plug from no1 cylinder (right) and plug from no4 cylinder (left). no1 cylinder has completely shattered the plug and no4 cylinder has started breaking down the plug. The diagnostic company said this shows detonation across all/most cylinders. Spent £1000s on this car in 10 months of ownership and now this. FFS I'm buying a Prius!1.pdf2.pdf3.pdf Edited February 13, 2015 by Yarco (see edit history) Quote Link to comment Share on other sites More sharing options...
Scott Posted February 13, 2015 Share Posted February 13, 2015 (edited) Wow that's really strange. Det in a BPU just shouldn't happen. Is it a stock ECU? Do you have a wideband gauge, or have any wideband checks done? Did you really not notice anything until right there? Something's going on with the cylinder with the plug in it. Nevermind the core electrode.... the ground electrode is gone! Edited February 13, 2015 by Scott (see edit history) Quote Link to comment Share on other sites More sharing options...
Ian C Posted February 13, 2015 Share Posted February 13, 2015 Might have been a fuel injector not doing its job properly? I had mine flow tested recently after they'd been in the car ten years and they were all down on flow, pushing 10% in some cases. It could run a single cylinder badly lean under those circumstances. You may have also had the misfortune to get a hotspot form on a damaged spark plug - that'll cause detonation even if everything else is fine Quote Link to comment Share on other sites More sharing options...
Yarco Posted February 13, 2015 Author Share Posted February 13, 2015 Wow that's really strange. Det in a BPU just shouldn't happen. Is it a stock ECU? Do you have a wideband gauge, or have any wideband checks done? Did you really not notice anything until right there? Something's going on with the cylinder with the plug in it. Nevermind the core electrode.... the ground electrode is gone! Hi mate. Stock ECU just full BPU upgrades. I have a wide band AFR and I was hitting around 11.6 under maximum load. Then all of sudden, no bang, just complete drop in power, I was literally limping. Hat off to the car I guess, it got me home 30 miles after that. Still running but sounds like a tank, probably running on 3-4 cylinders. Poor thing Quote Link to comment Share on other sites More sharing options...
Yarco Posted February 13, 2015 Author Share Posted February 13, 2015 Might have been a fuel injector not doing its job properly? I had mine flow tested recently after they'd been in the car ten years and they were all down on flow, pushing 10% in some cases. It could run a single cylinder badly lean under those circumstances. You may have also had the misfortune to get a hotspot form on a damaged spark plug - that'll cause detonation even if everything else is fine Spark plugs where replaced 6 months ago before I went 1.2 bar. I guess crappy injectors could of been an issue. The guy who diagnosed the problems also said the coil pack are break apart and need replacing. Quote Link to comment Share on other sites More sharing options...
costas1 Posted February 15, 2015 Share Posted February 15, 2015 if you did not notice any overboosting or strange noises before that i think your injectors betrayed you..and usually the damage they cause is instant with no warning when they decide to fail..as far as the cost goes no idea..i live in a different country..lol Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted February 15, 2015 Share Posted February 15, 2015 11.6 on BPU is unusual, and may explain the det, normally you would be seeing 10AFR or less, I would check fuel pressure, it could be a tired fuel pump, or fuel pressure regulator faulty, as for the no power I would also suspect the boost pipe of, or a split in one of the smaller pipes to the VSVs etc, or even the MAP sensor. Quote Link to comment Share on other sites More sharing options...
Scott Posted February 15, 2015 Share Posted February 15, 2015 Post 14 Ricky Engine is dead. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted February 15, 2015 Share Posted February 15, 2015 Post 14 Ricky Engine is dead. It was a comment on perhaps why the engine had died! Quote Link to comment Share on other sites More sharing options...
Scott Posted February 15, 2015 Share Posted February 15, 2015 Ahh, sorry I didn't realise the map sensor etc could kill an engine. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted February 15, 2015 Share Posted February 15, 2015 Ahh, sorry I didn't realise the map sensor etc could kill an engine. Since the ECU depends on this to read engine load, and therefore the current load cell on the fuelling and timing maps, any leak could alter the signal and cause all kinds of problems. Quote Link to comment Share on other sites More sharing options...
Scott Posted February 15, 2015 Share Posted February 15, 2015 Since the ECU depends on this to read engine load, and therefore the current load cell on the fuelling and timing maps, any leak could alter the signal and cause all kinds of problems. Not disagreeing, I just didn't realise Quote Link to comment Share on other sites More sharing options...
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