register gallery
 

Go Back   Mazdaspeed Forums >
MAZDASPEED SECTION
>
Mazdaspeed 3/6 MZR Gen1 Forums (2006-2009)
> MazdaSpeed 3/6 - Fuel, Nitrous & Water Injection

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!


Welcome to Mazdaspeed Forums .

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

*When you join MSF as a registered user, there will be No Ads.

*Registered Members get access to the Off Topic Area of the Forum

*Registered Members have an opportunity to upgrade their accounts to VIP, which brings a host of goddies for supporting MSF such as Raffles, Additional Forum Access, More PM Storage, The ability to upload more Images and many other enhancements.

*Registered members also get access to the live chat box!
Like Tree1Likes
  • 1 Post By 5doorsoffury
Reply
 
Bookmark and Share LinkBack Thread Tools Search this Thread Display Modes
 Old 05-18-2019, 04:15 AM   #1
 
luisito320's Avatar
 
Join Date: Apr 2016
Location: Orlando Fl
Posts: 9   (View Stats)
iTrader: (0)
Rep Power: 0
luisito320 will become famous soon enough
Thanks: 3
Thanked 1 Time in 1 Post
Groans: 0
Groaned at 0 Times in 0 Posts
(Thread Starter)
Not Ranked  0 score     
Default Fuel Problem

i been having fuel problem were my fuel pressure drop when the car is at idle for while. i have replaced the ITFP with DW300, IT fuel pressure regulator, HPFP switch from autotech to Corksport, also change the relief valve. all is done between 2 to 3 week apart.
i attached a log on idle, hope this help.
Attached Files
File Type: csv datalog43.csv (132.7 KB, 2 views)
luisito320 is offline   Reply With Quote
 Old 05-18-2019, 07:51 AM   #2
 
5doorsoffury's Avatar
 
Join Date: Feb 2012
Location: Li ny
Posts: 1,123   (View Stats)
iTrader: (1)
Rep Power: 0
5doorsoffury is the leader of the world5doorsoffury is the leader of the world5doorsoffury is the leader of the world5doorsoffury is the leader of the world5doorsoffury is the leader of the world5doorsoffury is the leader of the world5doorsoffury is the leader of the world5doorsoffury is the leader of the world5doorsoffury is the leader of the world5doorsoffury is the leader of the world5doorsoffury is the leader of the world
Thanks: 1,290
Thanked 600 Times in 341 Posts
Groans: 74
Groaned at 12 Times in 10 Posts
Neutral  +1 score     
Default

What does it drop to 60psi? Have you checked your spill valve and HPFP internals? They could be sticking.
Edit just checked the log it looks like the internals are sticking. Pull the pump and clean it out and check it
luisito320 likes this.
__________________
MECP
2012 BM
PTE 5858 Vband .82ar // Tial EWG // CPE Mani // 3" Turboback // JBR Under route hot pipe // MD ST mani+spacer with PI // Siemens 60lb Injectors // Splitsecond inj controller // JBR 88 duro RMM/TMM // MD PMM // TWM Full replacement shifter // JBR CC // Autotech FP Internals // SP63 SB/Manley rods SP63 pro pistons // Treadstone FMIC TR824 // FoMoCo Tranny Jizz // South Bend Clutch Stage 3 enduro// GFB Respons // FJ 4" intake // WMI 100% VPM1 // Air Lift 1000 in rear // N2MB WOT BOX
Rfinkle tune in progress

The Brooklyn beater: 2005 1.8 Auto Sentra

5doorsoffury is offline   Reply With Quote
The Following User Says Thank You to 5doorsoffury For This Useful Post:
luisito320 (05-24-2019)
 Old 05-18-2019, 08:16 AM   #3
 
luisito320's Avatar
 
Join Date: Apr 2016
Location: Orlando Fl
Posts: 9   (View Stats)
iTrader: (0)
Rep Power: 0
luisito320 will become famous soon enough
Thanks: 3
Thanked 1 Time in 1 Post
Groans: 0
Groaned at 0 Times in 0 Posts
(Thread Starter)
Not Ranked  0 score     
Default

the internals are brand new. and spill valve is clean.
luisito320 is offline   Reply With Quote
 Old 05-18-2019, 11:03 AM   #4
 
luisito320's Avatar
 
Join Date: Apr 2016
Location: Orlando Fl
Posts: 9   (View Stats)
iTrader: (0)
Rep Power: 0
luisito320 will become famous soon enough
Thanks: 3
Thanked 1 Time in 1 Post
Groans: 0
Groaned at 0 Times in 0 Posts
(Thread Starter)
Not Ranked  0 score     
Default

I will be replacing the fuel pressure sensor. Cuz going to basics and use the relief valve diagnostic the fuel pressure doesn't go up again. And it should go up since the car is still hot and the relief valve is brand new.
luisito320 is offline   Reply With Quote
 Old 05-22-2019, 01:20 PM   #5
 
luisito320's Avatar
 
Join Date: Apr 2016
Location: Orlando Fl
Posts: 9   (View Stats)
iTrader: (0)
Rep Power: 0
luisito320 will become famous soon enough
Thanks: 3
Thanked 1 Time in 1 Post
Groans: 0
Groaned at 0 Times in 0 Posts
(Thread Starter)
Not Ranked  0 score     
Default

So today I spend like 5 hours looking at wiring diagrams and doing diagnostics. I turn out that when the car gets to normal driving temperature the ECU cut the signal to the fuel pump relays.
Now I have to figure out if the ECU is bad or there is another sensor causing problems.
luisito320 is offline   Reply With Quote
 Old 05-23-2019, 02:33 PM   #6
 
luisito320's Avatar
 
Join Date: Apr 2016
Location: Orlando Fl
Posts: 9   (View Stats)
iTrader: (0)
Rep Power: 0
luisito320 will become famous soon enough
Thanks: 3
Thanked 1 Time in 1 Post
Groans: 0
Groaned at 0 Times in 0 Posts
(Thread Starter)
Not Ranked  0 score     
Default

So ECU is good.

Cleaning mechanical pump again.
Attached Images
File Type: jpg 20190523_172931.jpg (5.51 MB, 2 views)
luisito320 is offline   Reply With Quote
 Old 05-23-2019, 04:23 PM   #7
 
luisito320's Avatar
 
Join Date: Apr 2016
Location: Orlando Fl
Posts: 9   (View Stats)
iTrader: (0)
Rep Power: 0
luisito320 will become famous soon enough
Thanks: 3
Thanked 1 Time in 1 Post
Groans: 0
Groaned at 0 Times in 0 Posts
(Thread Starter)
Not Ranked  0 score     
Default

Fuel still drops and shut off. Even with the ITFP connected directly to the battery.
luisito320 is offline   Reply With Quote
 Old 05-24-2019, 12:33 PM   #8
 
luisito320's Avatar
 
Join Date: Apr 2016
Location: Orlando Fl
Posts: 9   (View Stats)
iTrader: (0)
Rep Power: 0
luisito320 will become famous soon enough
Thanks: 3
Thanked 1 Time in 1 Post
Groans: 0
Groaned at 0 Times in 0 Posts
(Thread Starter)
Not Ranked  0 score     
Default

Found what was causing the fuel drop. Problem solve.
luisito320 is offline   Reply With Quote
 Old 05-24-2019, 01:20 PM   #9
 
Jeff23spl's Avatar
 
Join Date: Sep 2013
Location: Quebec
Posts: 2,090   (View Stats)
iTrader: (0)
Rep Power: 0
Jeff23spl is the leader of the worldJeff23spl is the leader of the worldJeff23spl is the leader of the worldJeff23spl is the leader of the worldJeff23spl is the leader of the worldJeff23spl is the leader of the worldJeff23spl is the leader of the worldJeff23spl is the leader of the worldJeff23spl is the leader of the worldJeff23spl is the leader of the worldJeff23spl is the leader of the world
Thanks: 154
Thanked 544 Times in 433 Posts
Groans: 3
Groaned at 2 Times in 2 Posts
Not Ranked  0 score     
Default

Originally Posted by luisito320 View Post
Found what was causing the fuel drop. Problem solve.
what was it?
__________________
Mazda for life...or until i can afford something better...

2007 rusted Speed6... in progress...
1993 Ford Probe KLZE 143dB
2012 Mazda3 Gs-sky 6.5l/100 when transporting speed parts
1989 GM 6.2 diesel pickup
Wife drive 2010 CX7

2007 speed3 burned (i'm proud to ran 12.7s with it)

...Because French Canadian...

If you check for leaks and you didn't made a test under compressor pressure, you aren't done checking for leaks....
Jeff23spl is offline   Reply With Quote
The Following User Says Thank You to Jeff23spl For This Useful Post:
Vansquish (05-24-2019)
 Old 05-24-2019, 11:10 PM   #10
 
luisito320's Avatar
 
Join Date: Apr 2016
Location: Orlando Fl
Posts: 9   (View Stats)
iTrader: (0)
Rep Power: 0
luisito320 will become famous soon enough
Thanks: 3
Thanked 1 Time in 1 Post
Groans: 0
Groaned at 0 Times in 0 Posts
(Thread Starter)
Not Ranked  0 score     
Default

ITFP was getting hot and is was losing pressure slowly.
luisito320 is offline   Reply With Quote
 Old 05-25-2019, 03:08 PM   #11
 
MSMS3's Avatar
 
Join Date: Jun 2009
Posts: 2,691   (View Stats)
iTrader: (0)
Rep Power: 1098
MSMS3 is the leader of the worldMSMS3 is the leader of the worldMSMS3 is the leader of the worldMSMS3 is the leader of the worldMSMS3 is the leader of the worldMSMS3 is the leader of the worldMSMS3 is the leader of the worldMSMS3 is the leader of the worldMSMS3 is the leader of the worldMSMS3 is the leader of the worldMSMS3 is the leader of the world
Thanks: 1,403
Thanked 1,882 Times in 1,029 Posts
Groans: 150
Groaned at 47 Times in 31 Posts
Not Ranked  0 score     
Default

Originally Posted by luisito320 View Post
ITFP was getting hot and is was losing pressure slowly.
So you replaced it, or found out what was making it over heat and fixed that, or what?
__________________
2017 Audi Q5 3.0 T (supercharged) Stage 2+ EPL tune, JHM overdrive crank pulley, EPL supercharger pulley, ZF8 TCU tune, aFe/034 intake, modified air box. 480 hp.

Sunlight Silver '08 MS3 GT Mods: (Sold 1/25/2019 after 10+ years of ownership)
BNR Stage 1 (to fix smoking K04 turbo), TurboXS 3" Catless DP/RP "Stealthback" into stock CBE, Vibrant 3 inch Ultra Quiet Resonator in RP section, Magnaflow 3 1/2" exhaust tip, Mazdaspeed CAI w/air straightener and K&N conical filter, NGK 6510 Iridium IX one step colder plugs, Hypertech tune, Autotech HPFP internals, Stock BPV (works perfectly), Yokohama Advan Neova AD08R's (stock size on stock rims); Hawk HPS pads; SURE RMM; Grimmspeed EBCS (2 port mode), Bilstein B6's, SPC rear camber arms.
MSMS3 is offline   Reply With Quote
 Old 05-25-2019, 07:27 PM   #12
 
luisito320's Avatar
 
Join Date: Apr 2016
Location: Orlando Fl
Posts: 9   (View Stats)
iTrader: (0)
Rep Power: 0
luisito320 will become famous soon enough
Thanks: 3
Thanked 1 Time in 1 Post
Groans: 0
Groaned at 0 Times in 0 Posts
(Thread Starter)
Not Ranked  0 score     
Default

I did replace it. Still dont know why it was overheating. I think the pump was bad, because I check all wires trying to figure out what was wrong with it and everything is good.
luisito320 is offline   Reply With Quote
The Following User Says Thank You to luisito320 For This Useful Post:
MSMS3 (05-26-2019)
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel System Problem Speeden6 MazdaSpeed 3/6 - Fuel, Nitrous & Water Injection 0 10-08-2017 06:26 PM
PI Fuel Pressure Problem nswartz19 MazdaSpeed 3/6 - Fuel, Nitrous & Water Injection 0 04-26-2015 08:50 PM
Hey I have a fuel cut problem BigD99 2010 MS3 - Fuel, Nitrous & Water Injection 16 02-24-2014 05:40 AM
Problem after problem: Running rich & Fuel cuts wherewuat 2010 MS3 - Troubleshoot/Diagnostics 30 01-30-2014 01:13 PM
Fuel gauge problem... Speedaway Mazdaspeed3/6 General Discussion 14 01-16-2011 11:01 PM


All times are GMT -7. The time now is 11:18 PM.
Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2011, Crawlability, Inc.
vB.Sponsors
Template-Modifications by TMS
©Copyright 2008 ; 2019 Cymru Internet Services LLC | FYHN™ Autosports HQ
Ad Management plugin by RedTyger
Page generated in 0.30924 seconds with 24 queries