04-30-2021, 11:51 AM | #23 |
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Update: Replaced the egr valve again. My mechanic said codes pointed there even though we had just recently replaced it. Fortunately, it didn't cost me anything as the part was warrantied. We assume the last replacement part was just faulty. So far so good. Will update again if CEL comes back.
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05-10-2021, 08:55 AM | #25 |
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I've started having the same issue. BimmerLink reveals the following codes:
255C00 - EGR actuator high pressure, position control; negative deviation 255B00 - EGR actuator high pressure, position control; positive deviation 272F00 - EGR actuator high pressure, position control; mechanically defective near open 272E00 - EGR actuator high pressure, position control; mechanically defective near closed 282B00 - EGR rate control, system deviation: EGR rate too low, positive control deviation I'm going to attempt to first clean the existing EGR valve, which I realize may not do anything really. Then I will replace with the Wahler unit I found recently.
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05-13-2021, 11:11 AM | #26 |
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I used to have this error some time ago, replaced with aftermarket EGR, but then got less performance and check engine light popping up. Installing oem EGR valve solved this issue.
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05-24-2021, 10:59 PM | #27 | ||
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Source: currently own a heavily modified 2001 ALH That being said, that has nothing to do with you car. Just some comments With your bmw, sounds like you have a sticky egr. Clean it or replace it. Careful cleaning it, you don't want to get any particulates in the manifold. Replacing it requires replacing coolant or clamping the lines. |
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06-07-2021, 02:47 PM | #28 |
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CEL came back today. This time it's persistent and I have three codes instead of one. No idea why the valve keeps failing after being replaced. Any ideas?
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06-07-2021, 02:59 PM | #29 |
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What modifications does the car have, if any?
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06-07-2021, 07:16 PM | #30 |
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06-09-2021, 11:26 AM | #31 |
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Update: my Indy mechanic said the EGR cooler took a crap. Luckily it's warrantied 100k miles. Off to bmw.
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06-09-2021, 01:39 PM | #32 |
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Interesting. Were you losing any coolant?
I wonder how common this really is, and whether or not it also affects F25 chassis.
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06-09-2021, 01:50 PM | #33 | |
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But I suppose there is a difference whether it's pre-LCI or LCI.
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06-09-2021, 02:34 PM | #34 |
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No coolant loss to my knowledge, just repeated valve failure. My mechanic said the EGR cooler is faulty on my car and is making the plunger on the EGR valve stick which is why the valves keep failing after being replaced.
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06-09-2021, 03:17 PM | #35 |
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I wonder if he used a borescope on it? That would be cool to see, if you can get it here.
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06-10-2021, 08:41 AM | #36 | |
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I'm really curious what damage the cooler has that could cause the valve to go bad as well.
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06-10-2021, 09:27 AM | #37 | |
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06-13-2021, 10:13 PM | #38 | ||
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06-13-2021, 10:31 PM | #39 | |
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06-14-2021, 07:22 AM | #40 | ||
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I wonder if you manifold is all sooted up causing restricted airflow. That used to be common problem in the ALH VW TDIs which I'm more familiar with. You should get a flex telescoping camera to see for yourself. I think it's called a boroscope. Harbor freight sells a cheap one |
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06-14-2021, 07:28 AM | #41 | |||
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06-14-2021, 07:45 AM | #42 | ||||
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Alternatively, if I went with a tune which disabled the EGR system instead of the Kerma tune, would that resolve the issue as well? |
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06-14-2021, 10:15 AM | #43 |
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06-15-2021, 07:29 AM | #44 | |||
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