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WGPosition = Boost Solenoid Buzz
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11-10-2012, 07:45 PM | #1 |
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WGPosition = Boost Solenoid Buzz
First off, id like to apologize for the number of threads lately (ive made like 3 in this section). Its just easier to discuss a single topic/issue per thread. The other threads dealt with some random codes and another that dealt with a misfire/boost solenoid buzz.
So, I ended up replacing all 6 spark-plugs and re-flashing the firmware and 9-10 Aggressive maps. I did about 10 WOT pulls in 2,3,4 and the car runs fantastically. Misfires solved! I figured out that one of the two codes i was getting was the exhuast-flapper, and the other is mysterious one that many people get. Best option is to go to the dealership for that one. The only issue i have now is the last one i discussed in this thread here. I had really bad wastegate rattle with the standard 50% WGPosition so i went and changed it to 80%. This worked great, until i pulled into my garage and noticed the damn boost solenoid buzzing again. Im not sure if this is normal, or harmful. Video (the numbers i say are the WGPositon %'s): In this video, it starts out at 50%. At 30/40%, there is no rattle or buzz. You can see from the video that i randomly have buzz when at anything above 60%, it is not consistent, and can go in and out. What should i do? If i leave it at 50% (no solenoid buzz), then i get nasty wastegate rattle on cold-starts.
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11-10-2012, 08:06 PM | #2 |
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I also found the 50% setting gave more wastegate rattle on my car.
So I reverted back to 90%.......at that setting my solenoids sound about as loud as yours do at 70%. You can hear it, but not more than the overall engine noise. At some of the settings you tried it sounds 2-3 times louder than mine do at 90%. |
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11-10-2012, 08:20 PM | #3 | |
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11-10-2012, 08:30 PM | #4 | |
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No boost issues, but I am thinking of replacing them as preventive maintenance as my warranty expired recently. IF you are not having any boost issues, then just leave them at 90% and live with a bit of wastegate rattle for now. After all, you only hear the noise when you have the hood open so who cares? |
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11-10-2012, 08:37 PM | #5 |
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very interesting thread OP. i've had this buzz/farting noise for a while but never had any idea what might've been causing it. i've played around with the wg settings a little bit...but not enough to make the correlation like you have....so thanks for the info. i'll try playing around with my settings when i have some free time to see if i can reduce the buzz...
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11-10-2012, 08:46 PM | #6 | ||
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Also, what are you replacing the wastegates with? How much? Quote:
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11-10-2012, 10:57 PM | #7 |
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I had that same issue when I went and loaded any maps over than the 7-11-11 firmware and maps. Anything newer than that my car would make that noise. Sampled the agressive maps and it also did that noise. I went back to the maps and have been enjoying fart free non buzzing solenoids for as long as I can remember.
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11-11-2012, 03:58 PM | #8 | |
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11-11-2012, 04:23 PM | #10 |
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Nope, only once and a while.
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11-11-2012, 06:44 PM | #11 |
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