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MazdaSpeed 3/6 - ECU Computer Tuning Have an ECU tuning issue? Do you want to discuss Mazdaspeed 3/6 tuning solutions? Up to date info on the latest! Piasini Reflash, Cobb Access Port, Xede, Procede, Standback, Superchips & others supported here!


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 Old 10-05-2016, 05:22 PM   #1
 
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Default Accessport not reading boost?

I have a custom tune form PD tuning. Just the other day i was driving the car and the boost gauge on the cobb accessport stopped reading the correct psi. It always says either 10.27 or 9.38 with minor fluctuations. Does anyone know what would be causing this. The car still drives the same and i am running the same boost pressures it is just not being read properly by the accessport. Thanks
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 Old 10-06-2016, 08:30 AM   #2
 
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Call Cobb. I'm sure they can help you out.
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 Old 10-06-2016, 08:34 AM   #3
 
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Does car still feel like the boost you think you are supposed to be getting? maybe your map sensor is bad.
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 Old 10-06-2016, 07:08 PM   #4
 
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^^^ I would check the connection to your MAP sensor. Maybe with those numbers you got it mixed up with your MAF sensor and you're running rich :-)
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 Old 10-07-2016, 10:01 AM   #5
 
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The feels to be hitting boost properly. I have a 3.5 bar map sensor from corksport and just pulled it and looks to be in tact.
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 Old 10-07-2016, 11:17 AM   #6
 
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Hopefully you are load tuned but your boost cut probably won't work right. What does boost read when your key on and engine off?
If it's not reading close to zero then your MAP sensor probably went bad.
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 Old 10-07-2016, 06:51 PM   #7
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Pretty sure your MAP sensor is on its way to heaven. Do a log and look for abnormal readings such as static or drastic boost changes. Get in touch with CS.
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 Old 10-15-2016, 02:52 PM   #8
 
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So corksport ended up sending me a new map sensor. But when i went to install it the car wont start. I put the old one back in and the car also wont start. It wont even trunover. I already checked the battery and the keys if anyone has suggestions let me know thanks.
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 Old 10-15-2016, 06:44 PM   #9
 
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Any dash lights? I set off my anti theft stuff and couldn't start mine, but you will see the light to tell you.

Does it click? Everything else work?
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 Old 10-15-2016, 06:57 PM   #10
 
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The car clicks but no crank. Everything else works. No lights are on either.
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 Old 10-16-2016, 06:22 PM   #11
 
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How did you check the battery? I would suggest reseating the connections and make sure they are good. Also, have someone monitor the battery voltage as you crank

Sounds like you may have a weak battery or bad connection
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