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Deltadash...why can't I see any boost on my STi5 RA

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Old 20 November 2002, 05:15 PM
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mega_stream
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Is anyone running this software on their STi?, everything seems fine but my boost always seems to be 0

There are historic error codes stored for
45 pressure sensor
and
44 turbocharging pressure control signal

But not showing as live, the car is going in tomorrow to have a look at these codes. I would have thought that is the errors were still there they would show as live

I've not done an ECU reset yet as I want the garage to see them first.

Anyone got any idea?

Old 20 November 2002, 05:50 PM
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nom
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"no boost on DD"; "45 pressure sensor"; and "44 turbocharging pressure control signal" seem suspiciously linked to me... A dodgy pressure sensor would lead to no pressure control signal and no pressure showing up on the DeltaDash! I think you're garage can sort that one out
Old 20 November 2002, 06:08 PM
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IanW
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Are you running the latest version of the software? IIRC the early versions didn't work on the STi's?

I may be totally wrong here
Old 20 November 2002, 07:37 PM
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john banks
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There could be a leak or electrical disconnection from the MAP sensor. In addition, the wastegate solenoid has been disconnected at some point.

Make sure someone hasn't been using a "boost controller". (ie FCD from unplugging and capping the MAP pneumatic feed plus various other tricks). Check to see the solenoid is active with green connectors and ignition on II. Also make sure you get an active MAP signal (say -8 at idle which responds to the throttle).
Old 20 November 2002, 08:49 PM
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mega_stream
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Talking

John can you remind me which ones the MAP reading

Here's a log from tonights reading on the way home from work.
Anything look suspect?


Old 20 November 2002, 11:22 PM
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john banks
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Manifold relative pressure. Delta Dash on some models reports it as relative as here. Your MAP sensor or its plumbing/wiring is defective.
Old 21 November 2002, 04:41 PM
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mega_stream
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Oh well

The garage I bought the car from don't want to know

They say I bought the car at such a good price (this is VERY true...not my fault they didn't know what the car was )
that they would like to buy the car back off me

Guess what I said


Leaves me having to try and get these problems sorted using Warranty Holdings

What joy that's going to be if the dealing's some of you guys are anything to go buy...

I'm wondering if it's worth just getting replacement sensors and fitting them myself...anyone know how much a MAP sensor is?


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Old 21 November 2002, 05:09 PM
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nom
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Probably not alot
Old 21 November 2002, 06:23 PM
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john banks
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Try Grade A. Also try pressurising the pneumatic line to the MAP sensor with a syringe with the ignition on position II and seeing if there is any response on the manifold relative pressure trace on Delta Dash.

If the hose is OK, then try a new MAP sensor. AFAIK the MAP sensor is the same as the UK cars. You could always borrow a friend's one.

You could also connect a boost gauge T'd off just before the MAP sensor so you can make sure it is getting a good pressure supply.
Old 21 November 2002, 08:43 PM
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motorman
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John,

Drop me a mail if you want to try the MAP sensor off my car to test yours.

Jon
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