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MazdaSpeed 3/6 - Fuel, Nitrous & Water Injection MazdaSpeed 3/6 - Fuel, Nitrous & Water Injection Have a CDFP fuel pump question? Do you want to add Nitrous or Water Injection to your Mazdaspeed 3/6 ? Please come on in!


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 Old 04-16-2012, 12:56 PM   #1
 
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So, If my '12 ms3 is getting a lean code with a cai, should I upgrade the pump or get it tuned to fix it? Not looking for too much power, 300 would be good.
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 Old 04-16-2012, 05:17 PM   #2
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Originally Posted by Jerd2189 View Post
So, If my '12 ms3 is getting a lean code with a cai, should I upgrade the pump or get it tuned to fix it? Not looking for too much power, 300 would be good.
99% of lean codes have nothing to do with your fuel pump---- you should be looking for a vac leak first thing.
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I just did an internal install and my idle fuel pressure is down to 60 PSI, it will climb up to around 300 with a but of throttle. Everything seams to be installed correctly and moving nicely. I followed the AT instruction and removed and cleaned everything ensuring to reinstall everything as it came out. Advice?
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