R50/R53 :: Hatch Talk (2002-2006) Cooper (R50) and Cooper S (R53) hatchback discussion.

R50/53 Map sensor questions

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Old Aug 18, 2020 | 09:37 AM
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From: OakCreek
Map sensor questions

so I had one of my map sensors go bad as I think it got dirty , I still don't know which one as it was HOURS into trying to find my problem. I finally got the car running correctly after cleaning both map sensors and reinstalling them switched around, i took the one by the intake and put it in by the intercooler and vise versa..
now, after all my fiddling and stuff I got it running perfect almost and it seems to be making knoticeticably more power BUT I peak now 17 and even seen 18lb a couple times. But then I'm getting a p1723 or something i will 2x check when it comes back but it pertains to map sensor values low.. do you think just new map sensors will fix this ?
and my other question is about the map sensor i linked below, can we run that and would it be more effective and accurate ? What boost levels do are maps start becoming inaccurate or are they good to say 25lb ? Im just wondering if my higher boost levels are throwing off the accuracy of the map or if my map is just shot, and I never did figure out yet either exactly which map it was effecting my car..would you know by chance ? I'd think its the one by the intake filter from all my reading but that one wasn't dirty it was the one by my intercooler that was dirty. Also if I can and should run that 3 bar map, does it go into the map by my filter or by the intercooler or do I do them both ? If its not a help to get the one I listed I will just get regular oem maps..
and one more question , when i go to look for new map sensors they never list which position they are for , i did see they had 2x different part numbers on the maps.

https://www.eldaasv.com/index.php?main_page=product_info&products_id=52516



 

Last edited by MiniManAdam; Aug 18, 2020 at 09:53 AM.
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Old Aug 18, 2020 | 10:53 AM
  #2  
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Alan
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You can't switch the MAP and TMAP sensor - they are two different sensors.
 
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Old Aug 18, 2020 | 12:48 PM
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From: OakCreek
I see that now and lol I went to switch them around but somehow mixed them up thankfully and didn't. They look the exact same but arnt and as I found they read different values , I bought a cheapo replacement just to throw in to see if it keep my cel off..i drove it 30 miles today after a full reset last night and so far no cel has come on or any issues..
so one is referred to a map and the other is a tmap ???
here's a link to the map I bought , this one replaces the one in the intake manifold if I'm correct. So then I just need to find one for by the cyl head/intake area. Where does the upgraded one i linked go ? If that goes by the intake I might try it.

https://www.ebay.com/itm/MAP-Manifol...f324%7Ciid%3A1
 
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Old Aug 18, 2020 | 06:44 PM
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From: OakCreek
Ok. I found the other sensor on rockauto so I have both new sensors en route so once installed ille post back. I bought bottom dollar ones but I've never had an issue with cheapos so I hope my luck continues..
buuuuut, anyone have any info on that aftermarket 3bar map sensor..?..

 
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