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Solved ✔ n55 engine turns off itself if we start moving immediately after starting engine
11-11-2022, 08:27 AM,
Post: #1
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n55 engine turns off itself if we start moving immediately after starting engine
Hello. I opened car started engine and accelerated immediately. Engine stops itself.
I opened car started engine and accelerated in 3 seconds, then works. What can be reason? Another car on n55 engine does not act same. Can start engine and move immediately. (I know that it is better to wait few seconds but just my curiosity as 2 cars act differently from each other) |
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12-11-2022, 08:50 AM,
Post: #2
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RE: n55 engine turns off itself if we start moving immediately after starting engine
Noone knows ?
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12-11-2022, 09:23 AM,
Post: #3
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RE: n55 engine turns off itself if we start moving immediately after starting engine
What dtc are present
No help for people not give a feedback
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12-11-2022, 10:21 AM,
Post: #4
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RE: n55 engine turns off itself if we start moving immediately after starting engine
No errors. Just turns off if you move car immediately after starting. If you wait 2-3 seconds after starting, then goes normally.
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12-11-2022, 11:48 AM,
Post: #5
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RE: n55 engine turns off itself if we start moving immediately after starting engine
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12-11-2022, 14:45 PM,
Post: #6
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RE: n55 engine turns off itself if we start moving immediately after starting engine
(12-11-2022, 11:48 AM)ferbmw Wrote:(12-11-2022, 10:21 AM)bmwlover Wrote: No errors. Just turns off if you move car immediately after starting. If you wait 2-3 seconds after starting, then goes normally. If you do not have error, in ista "clear error" button is greay and you cannot erase. |
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12-11-2022, 15:29 PM,
Post: #7
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RE: n55 engine turns off itself if we start moving immediately after starting engine
check the charge pipe from turbo to intercooler
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13-11-2022, 08:21 AM,
Post: #8
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RE: n55 engine turns off itself if we start moving immediately after starting engine
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15-11-2022, 11:28 AM,
Post: #9
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RE: n55 engine turns off itself if we start moving immediately after starting engine
In 3 seconds dme is still in open loop and is depending on dme map. You have either
1. Insufficient fuel pressure or fuel supply 2. Insufficient or un-metered air. Check lambda and multiplicative ratios , and see if they are OK |
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15-11-2022, 15:59 PM,
Post: #10
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RE: n55 engine turns off itself if we start moving immediately after starting engine
he said no air leaks, but did he actually check physically check the charge pipe or is he just guessing since there is no code for lean mixture or air mass plausibility?
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