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post #1 of 4 (permalink) Old 03-06-2016, 10:17 AM Thread Starter
Cambria2015
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Newbie help

Hi everyone. Happy to be apart of the forum. I'm a new owner of a 2011 speed3. Unfortunately, I've run into my first obstacle and I'm looking for help. I have searched quite a bit I'm have possibly narrowed it down to either a pressure relief valve issue, or hpfp issue. I did a single 3rd gear pull yesterday and when coasting, the car shut off. Once restarted, idle missfire accompanied by a p0300&p0089 codes. I have low pressure at idle, but after about 1200rpm, it seems to run fine. Is there a way to test the PRV before removing it? TIA
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post #2 of 4 (permalink) Old 03-06-2016, 12:40 PM
mazdaspeedmyk
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Newbie help

Quote:
Originally Posted by Cambria2015 View Post
Hi everyone. Happy to be apart of the forum. I'm a new owner of a 2011 speed3. Unfortunately, I've run into my first obstacle and I'm looking for help. I have searched quite a bit I'm have possibly narrowed it down to either a pressure relief valve issue, or hpfp issue. I did a single 3rd gear pull yesterday and when coasting, the car shut off. Once restarted, idle missfire accompanied by a p0300&p0089 codes. I have low pressure at idle, but after about 1200rpm, it seems to run fine. Is there a way to test the PRV before removing it? TIA

Here's a video I watched when I was testing mine. There were a few others when I searched using "mazdaspeed prv test". Good luck. That valve is a pain to get to.

http://youtu.be/b5asM2I-YTA


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post #3 of 4 (permalink) Old 03-06-2016, 11:00 PM Thread Starter
Cambria2015
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I got the valve out in about 15 min. I was able to blow through both ends by mouth...I'm assuming its bad.
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post #4 of 4 (permalink) Old 04-09-2016, 11:57 AM
texasboy21
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Do you have an Accessport? You can determine if its functioning proper by watching the pressure climb when you turn the car off.
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