QuirkEinstein Posted August 19 Share Posted August 19 I have been observing and reading without actively participating for a long time. Recently, I purchased an R56 Cooper S. However, if I accelerate forcefully or just drive, the Engine Management Light (EML) appears and immediately reduces power, resulting in a lack of boost owing to entering limp mode. After doing a more thorough examination, it has been determined that the code is "2885," which corresponds to "Boost Deviation" (indicating low boost pressure, as I understand it). Despite doing thorough research on the internet, I have been unable to locate any definitive answers. The wastegate actuator has undergone inspection, adjustment, and cleaning. I ensured that it maintained pressure without any decrease. I inspected the vacuum lines without attaching it to the ramp. No cracks or weak areas that may enlarge when subjected to pressure were detected. I am utterly perplexed as to what subject or task to pursue next. Assistance in any kind would be much appreciated. Quote Link to comment Share on other sites More sharing options...
br1anuk Posted August 19 Share Posted August 19 If I have problems with boosting, my first action would be to do a smoke test on the intake, exhaust, and individual cylinders with the valves closed. That may indicate the presence of underlying problems that need immediate attention and resolution. Quote Link to comment Share on other sites More sharing options...
QuirkEinstein Posted August 19 Author Share Posted August 19 Instead of investing £60 on a smoker, what other options are considered safe to use? Quote Link to comment Share on other sites More sharing options...
br1anuk Posted August 19 Share Posted August 19 Regrettably, I am not aware of any information on the matter. To identify the leaks, it is necessary to observe the passage of smoke. Quote Link to comment Share on other sites More sharing options...
Rashman4u Posted August 19 Share Posted August 19 Experiencing difficulties with boost malfunctions Prioritise the task of eliminating any potential leaks. Additionally, it would be beneficial to inspect the vacuum lines using a smoke machine. Please note that the £60 smoke machines need a separate compressor for operation. Alternatively, I personally use a smoke machine that comes with its own built-in compressor. It is important to avoid the wasteful practice of blindly replacing components in an attempt to resolve the issue. Instead, focus on systematically ruling out possible causes. Quote Link to comment Share on other sites More sharing options...
QuirkEinstein Posted August 19 Author Share Posted August 19 Today, I conducted a smoke test on the impressive N14 by inserting a smoke machine into the oil filler cap. Placing cloth into the airbox intake and allowing smoke to permeate the whole system for a duration of 10 minutes. There was no smoke emitted save for a little amount from the area where the rags were placed. The only recourse that comes to mind at now is to maybe assess the functionality of my diverter valve. Can I activate this by applying a 12-volt power source and see movement or hear a clicking sound? This is my first experience dealing with turbos, so I am still somewhat unfamiliar with them. Thank you for your kind gesture. Quote Link to comment Share on other sites More sharing options...
Rashman4u Posted August 19 Share Posted August 19 Yes, you may test the divert valve by applying a 12-volt power source to check whether it activates or not. Quote Link to comment Share on other sites More sharing options...
QuirkEinstein Posted August 19 Author Share Posted August 19 Thank you, friend. Do electric vehicles also have a negative impact on fuel efficiency? Quote Link to comment Share on other sites More sharing options...
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