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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 06-29-2012, 05:36 PM   #1
 
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Default Need Help: Intermittent fuel pressure issues.

Ok for starters I would love some feedback asap, since my car is still at the shop after rebuilding my engine and the last issue they are running into is this fuel pressure problem.

1. Car runs for about 10-15 minutes and then will cut out.

2. they have a pressure gauge inline to test the pressure from the tank before the pump, which holds steady pressure.

3. Fuel pump internals are brand new autotech, had a set of autotech in there before with same problem. Before my engine was rebuilt the autotech internals held pressure at WOT between 1750-1900.

I asked the guys at the shop any other signs anywhere else for an electrical problem. Seems the only thing that is affected is the fuel pressure drop. They want to get this figured out before I can get the car back and obviously so do I.

My thoughts are I would try and see if anyone close has a stock fuel pump housing that we could get by Monday and put the autotech internals in there and see if the issue is still present...?

Let me know your thoughts please.
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[FONT="Franklin Gothic Medium"]2007 MS3 // Cobb AP // Cobb SRI // SURE TIP // Forge BPV // ATP 3" Catless Downpipe // Custom Midpipe // Autotech Internals // JBR 88 RMM/TMM 80 PMM // Denso ITV22 // DCR VVT // Custom Head P & P // Wiseco 9:5 CR on Eagle Rods // Prosport Boost & Wideband Gauges // Rebuilt K04 // 20% Tint // H&R Sports // HID 9K Low / 6K Fogs // Engine built at IAG Performance, Westminster, MD // Stratified Tuned (partial due to engine noise = knock)[COLOR="Red"]
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 Old 06-30-2012, 04:18 PM   #2
 
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Any ideas from anyone?
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[FONT="Franklin Gothic Medium"]2007 MS3 // Cobb AP // Cobb SRI // SURE TIP // Forge BPV // ATP 3" Catless Downpipe // Custom Midpipe // Autotech Internals // JBR 88 RMM/TMM 80 PMM // Denso ITV22 // DCR VVT // Custom Head P & P // Wiseco 9:5 CR on Eagle Rods // Prosport Boost & Wideband Gauges // Rebuilt K04 // 20% Tint // H&R Sports // HID 9K Low / 6K Fogs // Engine built at IAG Performance, Westminster, MD // Stratified Tuned (partial due to engine noise = knock)[COLOR="Red"]
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