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 Old 08-17-2016, 03:27 PM   #1
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Default autotech pressure dropping at decel? 193psi..

hey guys. had my autotech 2.5 years and never installed them until last week. idle is 415/435, wot is 1700+ (I did dip into 1600's once). on decel I know the pressure drops but earlier I had a low of 193.. lowest it's ever went. usually drops to a low of like 220 tops. should I take it apart, clean and inspect and put backk together?
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 Old 08-17-2016, 06:04 PM   #2
 
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You're fine.
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 Old 08-17-2016, 06:12 PM   #3
 
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If you're idling around 425 and above 1600 at WOT, you are great, no worries.
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 Old 08-17-2016, 06:38 PM   #4
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Originally Posted by 08cosmic3 View Post
If you're idling around 425 and above 1600 at WOT, you are great, no worries.
I'm just a little worried, because my car hiccups on a cold start. also, I didn't get a long but I did a pull and I came to a stop shortly afterwards. idle was 382 and seemed to keep dropping.. car also seems to hiccup in first Gear, sometimes it feels like it misfires hard at 5kish
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 Old 08-17-2016, 06:49 PM   #5
 
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Mine did the same Aro 4 months ago. I cleaned the male and female connection to the pump and made sure the connection was good and clean. I haven't had an issue since. I am running 50/50 E85 so I thought the spill valve may need a clean or the pump but not yet. Your good man but check the connection to make sure its good and clean.
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 Old 08-17-2016, 06:56 PM   #6
 
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If you're having issues then you should definitely clean the pump. Even a tiny bit of sticky death/film of it can cause some minor issues, which can turn major if not taken care of.
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 Old 08-17-2016, 08:28 PM   #7
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Originally Posted by WillP View Post
Mine did the same Aro 4 months ago. I cleaned the male and female connection to the pump and made sure the connection was good and clean. I haven't had an issue since. I am running 50/50 E85 so I thought the spill valve may need a clean or the pump but not yet. Your good man but check the connection to make sure its good and clean.
only option I have for fuel here in Canada is basic esso 91. it's not great by any means. I will check and clean those connections just because. thanks!

Originally Posted by g00s3y View Post
If you're having issues then you should definitely clean the pump. Even a tiny bit of sticky death/film of it can cause some minor issues, which can turn major if not taken care of.
honestly I think it's just the engine. car has 60,050 km, and mazda just put in a new engine under warranty at 48,000 km. it was misfiring bad in first, until I changed the plugs (ngk iridium one step colder) and fuel pump together. I also frequently have trouble starting the car when it's warm, it cranks and cranks before it catches. but this has been goin on since about 20k which leads me to believe egr is bad.
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 Old 08-17-2016, 11:03 PM   #8
 
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Was the In-Tank Fuel Pump ever checked and had the filter changed?
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 Old 08-21-2016, 12:44 PM   #9
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Originally Posted by mituc View Post
Was the In-Tank Fuel Pump ever checked and had the filter changed?
no, not to my knowledge.
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 Old 08-18-2016, 05:41 AM   #10
 
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take that shit back to mazda.

You don't need colder plugs, you need stock heat range properly gapped.
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