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06-01-2016, 08:02 PM
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(Thread Starter) |   Not Ranked : 0 score  Fuel pressure issues - fed the hell up with this I'm holding 33 psi of fuel pressure max at idle and throttle won't respond or build any pressure 1. Replaced fuel line from firewall to hpfp. 2. Removed spill valve no gunk it's clean as shit. 3. Replaced steel hard line from fuel rail to hpfp 4. Replaced relief valve. 5. Replaced injectors with flow tested injectors from Kozmic Motor sports 6. Using beCuse seals from Corksport on injectors 7. Replaced spark plugs. 8. Hpfp internals removed and cleaned. This all started after 1000 miles of 100% e85 and yes you can troll me but I was pushing 130 + idc with no fuel cut. Ran 50/50 no issues and eventually swapped back to 100 93 octane Car started making squeaking noise and wouldn't boost. Drove her home and next thing I know my boost gauge wasn't reading any vacuum and she wouldn't accelerate at all when previously my only issue was hitting boost. Ran compression test and she held 185 , 190, 191, 191 Grounds look okay and I'm not sure where to go next ... Wiring harness to injectors? Cool pack harness? | |
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06-01-2016, 08:07 PM
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| Not Ranked : 0 score What does your key on engine off fuel pressure sit at? Your in tank pump could have failed which means no fuel to the hpfp. I know you cleaned your hpfp internals, but did you make sure it isn't binding in the pump housing? tapatalk, it sucks |
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06-01-2016, 08:08 PM
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(Thread Starter) | Not Ranked : 0 score Also I've checked all vaccum hoses for leaks. Nada. My cars is heavily moded and simple. No purge valve it's VTA. Here's a few pics and no the HKS BOV is not leaking either | |
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06-01-2016, 08:10 PM
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(Thread Starter) | Not Ranked : 0 score 33 to 41 psi max | |
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06-01-2016, 08:16 PM
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| Not Ranked : 0 score That sounds like your in tank pump is not working. Let me see if I can find the post on how to swap it out under the rear seat. I'm pretty sure you should see 60psi. tapatalk, it sucks Article on fuel issues with e. good reading. E85 Discussion - HPFP lubrication and Flow issues tapatalk, it sucks Last edited by monkey.bones.007; 06-01-2016 at 08:16 PM. Reason: MSF Database - Automerged Doublepost |
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| The Following 2 Users Say Thank You to monkey.bones.007 For This Useful Post: | dale_gribble (07-11-2016), Vansquish (06-09-2016) |
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06-01-2016, 08:23 PM
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(Thread Starter) | Not Ranked : 0 score If this fixes my problem in gonna give you a big wet fucking kiss lol. To further describe my issue I was driving her at interstate speeds on the way back home holding 450 psi max when I couldn't boost. Turned her off and tried to start again and had no pressure at all. She's got blue smoke coming from exhaust heavily when started and a good idle for a second or two then she drops to 250 rpms and dies Also failed to mention that I was pushing the Corksport turbo at 27 psi for 3k ... She has some shaft play now and a little oil in the charge pipe but nothing major. If I had to do this over again I wouldn't run it beyond 23 psi Last edited by Xtrinsic1337; 06-01-2016 at 08:23 PM. Reason: MSF Database - Automerged Doublepost | |
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06-01-2016, 08:34 PM
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| Not Ranked : 0 score In still looking for the rear seat removal how to. 2011 ITFP Install-Dropping Tank tapatalk, it sucks |
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06-01-2016, 08:43 PM
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| Not Ranked : 0 score Well i can't seem to find the thread, but here is the hole you need to do it without dropping the tank on page 2. New Pump, Car won't start tapatalk, it sucks |
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06-01-2016, 10:18 PM
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(Thread Starter) | Not Ranked : 0 score So get this I take apart hpfp and spot cleaned everything again. This time I didn't plug in the fuel lines because I forgot and she started and held normal idle. Fuel pressure is now at 71 psi wtf Also noticed my hpfp seal has a spot missing at the oring I bet when I reseated it the deal was better. In going to replace this and try again. monkey.bones.007 likes this. Last edited by Xtrinsic1337; 06-01-2016 at 10:18 PM. Reason: MSF Database - Automerged Doublepost | |
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06-01-2016, 10:37 PM
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  Join Date: Apr 2012 Location: port orchard, w.a
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| Not Ranked : 0 score Bad spilt valve. I remember when i unplugged mine when running fuel pressure dropped to intank fuel pump pressure. Thats my guess. See if u can swap with a known good one
__________________ COBB ACCESSPORT//TURBOXS CATLESS DP+RACEPIPE//3 BAR MAP//3.5" HTP INTAKE//NGK 1 STEP COLDER PLUGS//HKS CATBACK//AUTOTECH INTERNALS//COBB FMIC V2.0//HKS BOV BLACK EDITION IN VTA//RPF1 17x9//pilot super sport 245/45/17//ACT 6 PUCK//M.D OCC VTA//TOKAY SEALS//BNR S4//Hypnotic tuned |
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06-09-2016, 12:49 AM
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(Thread Starter) | Not Ranked : 0 score Replaced in tank fuel pump with a dw65c and bought a used hpfp online which still had the cam casing on it and was in working condition. I still have the same god damn problem!!! Some help here would be nice. Tried with and without auto tech internals. The only thing different now is I can slightly rev the engine and it held idle for a few minutes then died. The hard lines and the fuel rail are the only thing I haven't fucking replaced! | |
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06-09-2016, 02:15 AM
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| Not Ranked : 0 score I had a problem with the fuel system on the gen one. I'm not sure if there is much difference between first and 2nd gen fuse box, so you would have to look at some diagrams. My car would start and die once it reached idle. There is 2 FP relays. One is for initial start up and then it switches to the other one once it reaches operating temp. In my case the 2nd relay was not getting power thus the intank pump was not getting power. So, you might just have an electrical issue. Might want to check if the relays are getting power.
__________________ 2007 TR MazdaSpeed3:Autotech FP inernals, CorkSport Turbo, TR8 Front Mount w/CX piping, JBR 3" intake, COBB EBCS, Cobb AP, Toyota Injector Seals, FR stud mod, Fidanza flywheel/LUK clutch, Forge BPV v2, cp-e xFlex stage 2 RMM, Wiseco .20 Pistons/Manley Rods/BSD, Dual DM catch cans, Koni Yellows/H&R springs, FD wheels, eBay downpipe, stock CBE 2005 Mazda 3 SP23: mods include rusty quarter panels and grinding 3rd gear. It does have a fusion motor, so I guess that's a mod too. |
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06-09-2016, 05:32 PM
| #13 | |
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(Thread Starter) | Not Ranked : 0 score Black smoke? Was blue now it's black My injectors are also squeaking compression still checks out Last edited by Xtrinsic1337; 06-09-2016 at 05:32 PM. Reason: MSF Database - Automerged Doublepost | |
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06-10-2016, 09:07 PM
| #14 | |
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(Thread Starter) | Not Ranked : 0 score Issue was the second oring on the in tank fuel pump then I blew the feed line from the filter to the top of the fuel pump housing bought replacements and will update one I install | |
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| The Following User Says Thank You to Xtrinsic1337 For This Useful Post: | blackms3_71 (06-20-2016) |
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06-11-2016, 01:16 AM
| #15 | |
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| Not Ranked : 0 score Way off topic but I see you using stock heat shield and a 2.5" Cobb intake so are you running your K04 at 26psi + 19.5* timing? Maybe that is why you are having probs lmao
__________________ 2009 Mazdaspeed 3 w/ Manley bottom end, keyed and lightened crank, CNC ported head, 2018 JMF v2 port injection fueled, CM twin disk clutch and Precision 6466 turbo, Kozmic built gen2 transmission with final drive swap. Tuning by PD Tuning |
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07-10-2016, 06:43 PM
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| Not Ranked : 0 score Did you fix this yet? |
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