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Go Back   Madabout Kitcars Forum > Mad Build Area > Marlin 5exi builds

Marlin 5exi builds Calling all you sexi builders....sorry 5exi builders, show us your progress.

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  #1  
Old 8th July 2014, 11:43
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Default Couple questions for turbo builders

Hi,

Can someone send me a photo of the boost pressure sensor please?

I pulled my T16 engine out of a Rover 600 about 8 years ago, I seem to have lost the sensor and I have no idea what it looks like!

Secondly, is the fuel tank purge valve used at all?

Cheers
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  #2  
Old 9th July 2014, 06:47
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Hi,

Purge valve I never used. Use the outlet on the inlet for a boost gauge

Boost pressure valve standard Rover has three outlets on it with an electrical connector to ECU.

Can get a manual one like I did quite cheap. Mine died so that was the route I did. But different car to drive. Instant full boost!
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Old 9th July 2014, 08:15
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Thanks for the reply.

So am I right in thinking that, where the RAVE manual refers to a boost pressure 'sensor' it is actually referring to this:

http://www.rimmerbros.co.uk/Item--i-PMK10006

Which is more of a boost pressure 'regulator'? If so that's great because I have this part

Also, looking at the RAVE wiring diagram it looks like the MEMS system doesn't have a management light.. that correct?

And if the above is true, can I leave the bleed valve and boost regulator electrically disconnected without getting any issues with the management side of things?

Cheers
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Old 9th July 2014, 17:28
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Where in Rave does it boost pressure 'sensor'? Just so I can confirm.

That picture is what I was thinking but Boost control solenoid

No management light for mems

Won't get any problems with mems. But won't get full boost without boost controller. About 7PSI if your lucky and actuator spring ok (very doubtful). But if you have it, use it
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Old 9th July 2014, 18:45
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I'll send you some photos on Facebook chat

But in case anyone else reads this in the future it's pin C159-14 on the MEMS ECU which goes to pin C170-2 on the Boost Pressure 'Sensor'
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Old 9th July 2014, 19:39
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That looks like the part Just being called different things between models

ECU will steadily control amount of boost, using that part, until 11.7 PSI as the revs and throttle are applied. So say 11.7 PSI at the top end.

The manual ones will give you full boost as soon as the turbo is ready at approximatly 2.5K revs!
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