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CAYC strange problem
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04-11-2025, 20:54 PM,
Post: #1
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CAYC strange problem
hi, i have here a 1,6 TDI with CAYC engine, car when is cold car make lots of smoke and dont have power and injection knocks, after get warm, car can be driven but still knocks a low RPM.
already update sofware, change injectors, change fuel filter but problem remains, anyone already have a similar problem? regards |
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04-11-2025, 22:17 PM,
Post: #2
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RE: CAYC strange problem
fault codes ?
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04-11-2025, 22:22 PM,
Post: #3
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RE: CAYC strange problem
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04-11-2025, 22:54 PM,
Post: #4
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RE: CAYC strange problem
you update software on the modified file ?
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05-11-2025, 00:35 AM,
Post: #5
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RE: CAYC strange problem
Are the injectors new? It depends on how well they've been refurbished. Some cheap brands don't make injectors that work. I bought cheap ones once and had the same problem. Then I bought better ones and the problem was gone.
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| Reputation: +1 - al70 [+1] | |||
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05-11-2025, 09:18 AM,
(This post was last modified: 05-11-2025, 09:19 AM by tigre.)
Post: #6
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RE: CAYC strange problem
(04-11-2025, 22:54 PM)al70 Wrote: you update software on the modified file ? i update by frf file (05-11-2025, 00:35 AM)samiralena Wrote: Are the injectors new? It depends on how well they've been refurbished. Some cheap brands don't make injectors that work. I bought cheap ones once and had the same problem. Then I bought better ones and the problem was gone. they are brand new, and are good because i test in another car. problem is not injectors. |
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05-11-2025, 09:26 AM,
(This post was last modified: 05-11-2025, 09:33 AM by Moldovan1.)
Post: #7
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RE: CAYC strange problem
Not enough air flow in to engine in low rpm range by injected amount of fuel. Clear intake, check turbo and knock sound go away in low rpm range.
Try an another old/new version of FRF because can also be that software strategy give some more fuel to make impression that this motor is strong enough  )
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05-11-2025, 09:47 AM,
Post: #8
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RE: CAYC strange problem
(04-11-2025, 20:54 PM)tigre Wrote: hi, i have here a 1,6 TDI with CAYC engine, car when is cold car make lots of smoke and dont have power and injection knocks, after get warm, car can be driven but still knocks a low RPM. Hi. Try updating the software to see if that helps. Otherwise, when the engine is warm, try calibrating the minimum injector quantity with VCDS. if i help don't forgot = rep + thanks |
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05-11-2025, 12:54 PM,
Post: #9
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RE: CAYC strange problem
You mentioned that the DPF and EGR have been deleted, if you update the software, they will both be switched back on
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05-11-2025, 17:01 PM,
Post: #10
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RE: CAYC strange problem
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| Reputation: +1 - al70 [+1] | |||
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