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Solved ✔ Engine hard to start when is hot
11-02-2022, 16:49 PM,
Post: #11
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RE: Engine hard to start when is hot
If you force me to give an answer, I guess it is injector leaking.
When engine is toppped, how about rail pressure? Does it stay or drop? I think there is ABL for it. |
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11-02-2022, 18:34 PM,
(This post was last modified: 11-02-2022, 19:41 PM by masa52.)
Post: #12
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RE: Engine hard to start when is hot
OKOLO
Im also suspecting this flow control valve and maybe will change soon Fuel filter is new Fuel tank dont think so rail pressure not drop Car has only 15K miles and I dont suspect Injectors This problem happened suddenly attaching injector test https://youtube.com/shorts/01ft0gcGAUE?feature=share |
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12-02-2022, 10:01 AM,
Post: #13
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RE: Engine hard to start when is hot
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12-02-2022, 11:35 AM,
(This post was last modified: 12-02-2022, 11:35 AM by Node.)
Post: #14
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RE: Engine hard to start when is hot
I don't see any problem in your graphs. In cold graphs start takes about 1.5s from starter on to started. In hot it may be a tiny bit longer, but it still is no more than 1.7s...
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12-02-2022, 11:53 AM,
Post: #15
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RE: Engine hard to start when is hot
In videos what i attached yesterday you can hear how long car crank till starts
Definitely its something wrong but the question is what?? thanks any way for help!!! |
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12-02-2022, 12:05 PM,
(This post was last modified: 12-02-2022, 12:09 PM by Node.)
Post: #16
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RE: Engine hard to start when is hot
Please redo cold graphs. From videos it takes about 0.5s to start on cold, but that is not seen in the graphs. So it's impossible to compare and tell what goes differently.
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12-02-2022, 17:45 PM,
Post: #17
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RE: Engine hard to start when is hot
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24-02-2022, 18:01 PM,
Post: #18
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RE: Engine hard to start when is hot
As no one chimes in what I see from this:
1. yes, pressure on hot rises a bit slower than on cold, but IT HAS NO CONNECTION with starting. I mean pressure on hot engine is already higher than on cold much earlier than it starts. 2. the issue I see here is that engine only starts when DDE increases injection quantity from 20 to 30. More or less SAME AS ON COLD. Have you checked injectors are not clogged and compression is good? |
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25-02-2022, 14:26 PM,
Post: #19
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RE: Engine hard to start when is hot
no i didnt check injectors and compression
car has only 15k and this happened suddenly I will try to change soon injection quantity valve and will see if this helps Also have new crankshaft sensor to change Thank Node for suggestions |
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25-02-2022, 19:33 PM,
Post: #20
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RE: Engine hard to start when is hot
is the starter fast enough?
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