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Author Topic: Boost Problem, no n75 reaction  (Read 2563 times)
nyet
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« Reply #15 on: July 01, 2019, 06:52:29 PM »

If the wg stays closed with the line disconnected, but opens too early with the wg line connected to the n75 regardless of duty, the problem is pretty obvious.
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kacperoooni
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« Reply #16 on: July 02, 2019, 03:40:08 AM »

If the wg stays closed with the line disconnected, but opens too early with the wg line connected to the n75 regardless of duty, the problem is pretty obvious.
Tested 3 working n75, no difference. Is wastegate actuator damaged? It's not tune problem, because .bin was tested in other cars and worked as intended.
« Last Edit: July 02, 2019, 03:41:51 AM by kacperoooni » Logged
nyet
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« Reply #17 on: July 02, 2019, 08:57:23 AM »

Something is bleeding pressure to the wgs. if the wg actuator is damaged, i can't imagine it opening *more* easily than it should. the spring is either overcome with manifold pressure or it isn't.

N75s are normally open unless told otherwise, so if your plumbing is good, its either your harness or the ECU n75 solenoid driver.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
kacperoooni
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« Reply #18 on: July 03, 2019, 12:00:19 PM »

problem seems to be solved, brand new n75 from bosch turned out to be f&cking crap and didn't work from the beginning. After a change for pierburg one everything works as it should.
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nyet
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« Reply #19 on: July 03, 2019, 12:21:09 PM »

I have never had a bad new n75, and i've probably used at least a dozen on various cars
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
IamwhoIam
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« Reply #20 on: July 04, 2019, 08:25:27 AM »

There's aftermarket N75s being sold nowadays that plain and simple don't work. I've had this 2 weeks ago with an N75 ordered from Tecdoc or something stupid like that, and of course it wasn't an OEM one.
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vwaudiguy
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« Reply #21 on: July 05, 2019, 10:15:16 AM »

There's aftermarket N75s being sold nowadays that plain and simple don't work. I've had this 2 weeks ago with an N75 ordered from Tecdoc or something stupid like that, and of course it wasn't an OEM one.

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