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FreeScale MPX5010DP

General questions and chit-chat about the ECU+.

FreeScale MPX5010DP

Postby da1sexmonk83 » Sun Jun 07, 2009 2:55 am

http://parts.digikey.co.uk/1/1/253073-s ... 010dp.html
http://www.datasheetcatalog.org/datashe ... 5010GS.pdf

MPX5010DP

I bought this with no part number. I had to search to find it. I have a few questions as to the ECU+'s use of this sensor.

First it is dual port (something I didn't realize when buying it) one for vacuum, and one for pressure. I do not believe I know of ports on the dsm that are strictly vacuum. There is one on the throttle body that is only pressure though. is this going to cause an issue?

Also I don't understand ANY of that document. So I have no idea what the range actually is. Its a 5 bar which would lead me to believe 58psi (72-14) max but when I bought it it said 45? But really I have no idea what to put in the ECU+ fields for max - min. It says in there but the numbers aren't in PSI which is confusing
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Re: FreeScale MPX5010DP

Postby tlcoll1 » Mon Jun 08, 2009 9:10 pm

Hmm. According to the datasheet, it's a differential pressure sensor, so you'd hook one side to atmosphere and the other side to your pressure source. No problem there. But... the data sheet also shows the range as 0-19 kPA, which is 0-1.45 PSI. This is of no use for your car.

Tom
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Re: FreeScale MPX5010DP

Postby da1sexmonk83 » Mon Jun 08, 2009 11:48 pm

So this only shows 1.5psi????? So I just threw away my money on this. Ugh BS
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Re: FreeScale MPX5010DP

Postby da1sexmonk83 » Tue Jun 09, 2009 12:06 am

So does that mean the seller lied when he said 5 bar? If so I might be able to get my money back
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Re: FreeScale MPX5010DP

Postby tlcoll1 » Tue Jun 09, 2009 2:17 am

Seems like he lied. 0.05 bar might be closer!

Tom
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Re: FreeScale MPX5010DP

Postby da1sexmonk83 » Tue Jun 09, 2009 11:44 am

Ok I message him complaining about this and he told me the part number was wrong, that he didn't carry that model. The real model number is MXP5500DP which is to 75ps (-14.7) So all is well that ends well I suppose .02 - 4.7 volts

http://www.freescale.com/files/sensors/ ... PX5500.pdf
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Re: FreeScale MPX5010DP

Postby tlcoll1 » Tue Jun 09, 2009 8:55 pm

Ok. Manifold pressure to P1, P2 open. 0 volts=0PSI, 4.5 volts=72.52 PSI, then use the Zero Boost button with the car off.

kPA to PSI: http://www.csgnetwork.com/presskpapsicvt.html

BTW, the down side to getting such a large range of PSI is accuracy. As per the data sheet, accuracy is +/-2.5% of the full-scale voltage. That's +/-1.8 PSI so your boost readings can be off by that much assuming no other sources of error.

Tom
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Re: FreeScale MPX5010DP

Postby da1sexmonk83 » Tue Jun 09, 2009 10:42 pm

Alright thanks Tom! I would have gotten a smaller one I just have no idea what I am doing 99% of the time.
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