re turbo

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tesse3970
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re turbo

Post by tesse3970 » Fri Aug 11, 2017 10:43 pm

Hi guys, what is the boost pressure valve and where is it.

Jultsu
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Re: re turbo

Post by Jultsu » Fri Aug 11, 2017 10:52 pm

Depends on the engine.

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Gazwould
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Re: re turbo

Post by Gazwould » Fri Aug 11, 2017 10:54 pm

N75


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tesse3970
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Re: re turbo

Post by tesse3970 » Fri Aug 11, 2017 11:17 pm

Hi guys, its the awx 1.9 tdi.

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Re: re turbo

Post by tommyhammer » Sat Aug 12, 2017 3:24 am

Sorry Gazwould that appears to be N239 solenoid to control anti shudder valve.Boost control N75 solenoid should be bolted low down to front of engine on turbo side,.you need to remove intake ducting to find it,Or follow the vacuum pipe from the turbo actuator which will lead you to N75 if it's been repositioned.

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Gazwould
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Re: re turbo

Post by Gazwould » Sat Aug 12, 2017 6:35 am

Then we have a misleading image on Google .
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Alan Gunn
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Re: re turbo

Post by Alan Gunn » Sat Aug 12, 2017 7:28 am

If i remember it fastens on the left just above where the sump joins the block that is when you are standing in front of the car.
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BIG F@ TW@
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Re: re turbo

Post by BIG F@ TW@ » Sat Aug 12, 2017 9:14 am

N75 is just under this pipe. Image

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tesse3970
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Re: re turbo

Post by tesse3970 » Sat Aug 12, 2017 7:02 pm

Hi guys ,Where is the best place to buy the N75 valve and how much are we looking at thanks paul.

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fluke
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Re: re turbo

Post by fluke » Sat Aug 12, 2017 8:06 pm

What is the problem with the car ?

Are you sure its the N75 valve ?
Dave

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tesse3970
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Re: re turbo

Post by tesse3970 » Sat Aug 12, 2017 9:11 pm

Hi fluke, emissions workshop message and eml and limp mode, turn off engine and no message or eml, back to normal running but still feel it should have more bang than it has, to say it's the 130 bhp model, my 110 bhp that i used to have would kick its bum in, you can feel the turbo come in, it just feels flat, if that helps.

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ray112
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Re: re turbo

Post by ray112 » Sat Aug 12, 2017 9:21 pm

Stick egr or turbo vanes. Probably both is your problem. N75 won't solve it. Have you checked how freely turbo actuator is moving? Emission workshop will be stuck egr. If it's stuck open, you will never get enough boost, that's why car feels flat.

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fluke
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Re: re turbo

Post by fluke » Sat Aug 12, 2017 10:18 pm

Also could be MAP Sensor/ Thrust Sensor.

Same thing different name.
Dave

"Duct tape is like the force. It has a light side, a dark side, and it holds the world together."
======
Cooper B5.5TDI wrote:I never rush a deep one....but she's handled about 14 inches so far with success

tesse3970
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Re: re turbo

Post by tesse3970 » Tue Aug 15, 2017 2:06 pm

Hi ray112 how can i tell if egr is stuck open, been through so much mr muscle recently wot with turbo veins an egr asda must think i am running a cooker cleaning buisness lol.

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Gazwould
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Re: re turbo

Post by Gazwould » Tue Aug 15, 2017 2:43 pm

Run it with egr disabled to see if it improves .
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ray112
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Re: re turbo

Post by ray112 » Tue Aug 15, 2017 3:07 pm

Do like Gazwould suggested or take it off and clean /check it before fitting back. If it's clogged up and stuck, then disconnecting won't make any difference.

tesse3970
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Re: re turbo

Post by tesse3970 » Tue Aug 15, 2017 5:22 pm

Thanks guys, for disable you mean vac pipe off and plugged.

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Gazwould
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Re: re turbo

Post by Gazwould » Tue Aug 15, 2017 5:36 pm

Aye , bolt in vac line .
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tesse3970
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Re: re turbo

Post by tesse3970 » Tue Aug 15, 2017 5:49 pm

Cheers gazwould. 2004 model will it put eml on.

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Gazwould
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Re: re turbo

Post by Gazwould » Tue Aug 15, 2017 7:00 pm

That's true , when reconnected does eml go out ?

Eml usually take a few days to come on , plenty of time to test .
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tesse3970
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Re: re turbo

Post by tesse3970 » Tue Aug 15, 2017 10:31 pm

Thanks gazwould for your input, i'll be trying a few things as surgested first chance i get and will let you no of my progress many thanks paul.

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Re: re turbo

Post by passat-pd130 » Wed Aug 16, 2017 3:14 pm

ive had a random code up that looked like the boost control solinoid changed everything and it ended up it was the MAP sensor

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fluke
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Re: re turbo

Post by fluke » Wed Aug 16, 2017 7:34 pm

passat-pd130 wrote:
Wed Aug 16, 2017 3:14 pm
ive had a random code up that looked like the boost control solinoid changed everything and it ended up it was the MAP sensor
Same here cost me a fortune N75 N18 N239 Temp Sensor all genuine and over priced.

Turned out to be MAP/Thrust Sensor.

Why is the Temp Sensor £39 ??????
Dave

"Duct tape is like the force. It has a light side, a dark side, and it holds the world together."
======
Cooper B5.5TDI wrote:I never rush a deep one....but she's handled about 14 inches so far with success

tesse3970
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Re: re turbo

Post by tesse3970 » Wed Aug 16, 2017 8:47 pm

Hi guys and thanks for all your help, you say your problem was the map sensor is that the one in the plastic pipe to right of the bulkhead or the one on the air box or is that the maf sensor many thanks paul.

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fluke
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Re: re turbo

Post by fluke » Wed Aug 16, 2017 8:52 pm

Plastic pipe on right near bulkhead.
Dave

"Duct tape is like the force. It has a light side, a dark side, and it holds the world together."
======
Cooper B5.5TDI wrote:I never rush a deep one....but she's handled about 14 inches so far with success

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