Replacement Dynon MAP sensor

[hydroguy2]

Starting my condition inspection this weekend, and 1 thing on the list is replace the MAP sensor. I have a Dynon and can get one from them...but I seem to recall a post saying GM sensor is the same and locally available.

So anyone have a part number or other info about a direct swap vs the Dynon part?

[F1Boss]

Hey Hydro:

I used Google and looked at the inages to get the right part. I recall about $35 at O'Reillys?

Carry on!
Mark

[N520TX]

12247571

http://www.ebay.com/itm/GM-2BAR-MAP-...-/180782589555

or this one if all you need is the sensor itself:

http://www.ebay.com/itm/12247571-Man...3ac74b&vxp=mtr

Lots of sources for them.

[BillL]

Brian,

I don't know how this thing is oriented in the installation, but it looks like the same sensor used on a CAT 3406 PEEC in the '80's. It was positioned with the hole facing up and would get a drop of water in it and freeze, resulting in failure. (driving -flying- in rain)

Positioning it hole-side-down resulted in dropping failure rate to - - -never.

Good luck.

[hydroguy2]

Perfect thanks everybody.

VAF is great source of fast info. I'm sitting here prepping for my borescoping this afternoon, so can't get to far from a bathroom. but still able to make progress on Auroras inspection.

Oops was that TMI

[N941WR]

Originally Posted by N520TX

12247571

http://www.ebay.com/itm/GM-2BAR-MAP-...-/180782589555

or this one if all you need is the sensor itself:

http://www.ebay.com/itm/12247571-Man...3ac74b&vxp=mtr

Lots of sources for them.

Yep, that's the correct part number. (It is the same one we recommend for the EICommander.)

[dynonsupport]

Some more numbers that can help:

GM Part #16254539

Napa PN: CRB21963
Autozone P/N: Wells SU129
Shucks/Kragen/Checker/AC Delco #213-361

Make sure you get it via part number, not just looks. There are 3 parts that look identical, but only one works.

[hydroguy2]

thanks for the additional information. Originally, I had planned on ordering one from Dynon....but I'm a procastinator (level II) and am under the panel this weekend so figured there was a local option.

[hydroguy2]

Well, that was chore for no gain. None of the numbers above worked for me at the local autoparts shops....except the number 12247571. I was able to cross this number over at O'Rielly autoparts to the below sensor.



The bad news is....the MAP reading on my Dynon on the ground is exactly the same. Haven't flown yet, but makes me wonder what's next.

I replaced the Dynon sensor because it appeared I had a 0.3-0.4 error.

[Jordan1976]

Brian,
I see you are in Montana, which is not at sea level. The MAP and BARO setting should not match unless you are at 0 MSL. Are you factoring this in?