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09-20-2010, 10:54 PM | #26 | |
Scooby Specialist
Member#: 198053
Join Date: Dec 2008
Chapter/Region:
Tri-State
Location: CT
Vehicle:02 WRX Wagon www.efilogics.com |
Quote:
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09-20-2010, 11:33 PM | #27 |
*** Banned ***
Member#: 227747
Join Date: Oct 2009
Chapter/Region:
NWIC
Location: Spokane WA
Vehicle:2006 STI (BW S363) SGM |
sounds like a injector is sticking open or flowing more cc then what it is tuned for.
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09-21-2010, 01:36 AM | #28 |
Scooby Specialist
Member#: 107179
Join Date: Feb 2006
Chapter/Region:
MWSOC
Location: Bensenville, IL
Vehicle:S4, WRX 1.27 60', 9.37 1/4 |
I had very similar symptoms (as far as shaking and air fuel oddities anyway) and just found out the problem today was that my fuel pump took a crap on me. It's worth a look if you have had that pump for a while; mine lasted ~2 years.
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09-21-2010, 08:10 AM | #29 | |
Scooby Specialist
Member#: 71606
Join Date: Sep 2004
Chapter/Region:
MAIC
Location: Hagerstown, Maryland
Vehicle:07 STI WRB |
Quote:
This could very well be the issue. You should be able to hear or at least feel the injectors "click" when you turn the key and power is applied. Try having someone cycle the key off and on while you hold each injector and feel for the click. You don't have to remove the injectors as long as you can touch the side of each one of them. If it clicks it's working. |
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09-21-2010, 09:47 AM | #30 | ||||
Scooby Specialist
Member#: 94816
Join Date: Aug 2005
Chapter/Region:
Tri-State
Vehicle:1993 Rx7 1jz swapped |
Quote:
Quote:
Also when I give it just about any amount of throttle, say, 20% and up, my wideband immediately jumps to 10. Normally I wouldnt bring this up, but I havent driven the car long enough to know if this is normal or not. I remember Chris telling me it would run rich on WOT because that is how he tuned it, but it goes right to 10afr for any amount of boost. I have brought this to his attention as well as see what he has to say. I did also get a response from Deatschwerks about returning the injectors to have them tested if needed. Quote:
Quote:
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09-21-2010, 01:28 PM | #31 |
Scooby Newbie
Member#: 825
Join Date: Jan 2000
Location: Kanada
Vehicle:2002 wrx |
Just throwing this out there - have you checked/cleaned your MAF sensor? Could be that a drop of oil has fouled it up. Happened to me after over-oiling my air filter. The over rich symptom started to happen on the drive 20-30 minutes later, only after running the car hard. Washed it out in a zip-lock bag with brake cleaner, ran like a charm thereafter.
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09-21-2010, 07:41 PM | #32 | |
Scooby Specialist
Member#: 94816
Join Date: Aug 2005
Chapter/Region:
Tri-State
Vehicle:1993 Rx7 1jz swapped |
Quote:
I have a wicked cold and just got back from work tonight, so nothing is happening real soon. |
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09-22-2010, 09:02 PM | #33 |
Scooby Specialist
Member#: 94816
Join Date: Aug 2005
Chapter/Region:
Tri-State
Vehicle:1993 Rx7 1jz swapped |
Picked up 8 new spark plugs to try a new set. Also picked up 2 new coil packs to see if that helps anything.
If that doesnt work, i am going to pull the injectors and have them sent to DW to be tested again. I have been trading emails with DW and their customer service has been awesome! |
09-23-2010, 06:59 AM | #34 |
*** Banned ***
Member#: 227747
Join Date: Oct 2009
Chapter/Region:
NWIC
Location: Spokane WA
Vehicle:2006 STI (BW S363) SGM |
^^^Ya they are really good. If they cant find a prob with them you might wanna send them to witchhunter to have them flow tested and clean.
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09-23-2010, 05:09 PM | #35 |
Scooby Specialist
Member#: 94816
Join Date: Aug 2005
Chapter/Region:
Tri-State
Vehicle:1993 Rx7 1jz swapped |
OK, I have a plan. I emailed Chris at EFI to get some incite if he thinks we can fix this in a day or not. If we can, Ill just take the Suby out there. If not, Ill have to have Amanda follow me in the focus and leave the Suby there to have them sort it out.
I still have to try my spark plugs and coil packs, but if that doesnt work, I think I am dead in the water because I really dont think it has anything to do with the injectors. |
09-23-2010, 08:06 PM | #36 |
Scooby Specialist
Member#: 120912
Join Date: Jul 2006
Chapter/Region:
South East
Location: Atlanta, GA
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How do/did the fuel trims look when out of boost?
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09-23-2010, 08:26 PM | #37 |
Scooby Specialist
Member#: 192147
Join Date: Oct 2008
Chapter/Region:
NESIC
Location: Maine
Vehicle:2007 STI EfiLogics 422whp 421wtq fpgreen |
its your first o2 sensor.........well it was for me anyways. no CEL and the same symptoms as you, try it.
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09-23-2010, 08:43 PM | #38 |
Scooby Specialist
Member#: 225361
Join Date: Sep 2009
Chapter/Region:
MAIC
Location: ashburn, va
Vehicle:2006 wrx sti beige |
is 120 psi on a cold motor good? i thought it was suppose around 140ish.
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09-23-2010, 08:57 PM | #39 |
Scooby Specialist
Member#: 192147
Join Date: Oct 2008
Chapter/Region:
NESIC
Location: Maine
Vehicle:2007 STI EfiLogics 422whp 421wtq fpgreen |
140ish is warm sti comp
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09-24-2010, 10:24 PM | #40 |
Scooby Specialist
Member#: 192147
Join Date: Oct 2008
Chapter/Region:
NESIC
Location: Maine
Vehicle:2007 STI EfiLogics 422whp 421wtq fpgreen |
NVM it wasnt my o2 good luck
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09-25-2010, 01:05 AM | #41 |
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Member#: 29201
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Chapter/Region:
NESIC
Location: Shrewsbury, MA
Vehicle:BMW M3 Honda S2000x2 |
Have you checked all your intercooler piping?
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09-25-2010, 09:45 AM | #42 | ||
Scooby Specialist
Member#: 94816
Join Date: Aug 2005
Chapter/Region:
Tri-State
Vehicle:1993 Rx7 1jz swapped |
Here is my latest log driving around town
https://spreadsheets.google.com/ccc?...VE&hl=en#gid=0 Quote:
Quote:
The very first thing I did was boost leak test it It appears a lot of you are not reading the rest of the thread. The car is no longer lean and the engine is not shaking. That issue was fixed. It was an unplugged coil pack on #4. The coil pack has since been plugged in and the car runs great at idle and around town. It just goes crazy with any amount of boost. Last edited by fourseasonsandles; 09-25-2010 at 03:13 PM. |
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09-25-2010, 11:23 AM | #43 |
Scooby Specialist
Member#: 192147
Join Date: Oct 2008
Chapter/Region:
NESIC
Location: Maine
Vehicle:2007 STI EfiLogics 422whp 421wtq fpgreen |
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09-25-2010, 03:11 PM | #44 | |
Scooby Specialist
Member#: 94816
Join Date: Aug 2005
Chapter/Region:
Tri-State
Vehicle:1993 Rx7 1jz swapped |
Quote:
If that doesnt fix it, I have an appointment at EFI on Oct 5th to sort it out. |
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09-26-2010, 02:33 PM | #45 | |
Scooby Specialist
Member#: 192147
Join Date: Oct 2008
Chapter/Region:
NESIC
Location: Maine
Vehicle:2007 STI EfiLogics 422whp 421wtq fpgreen |
Quote:
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09-26-2010, 02:52 PM | #46 |
Scooby Specialist
Member#: 152576
Join Date: Jun 2007
Chapter/Region:
SWIC
Location: Reno, NV
Vehicle:2009 GTR 10.7@ 133 Mayhem Tuning!!!!! |
Pull the injectors out you will see, on the side that goes into the head, little grey caps on the end of the injector! If they are gone you car will run like crap! I had a set of the 740cc do this... they sent me new caps and I am good now! this should fix your problem for sure and not have to get re tuned!
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09-27-2010, 12:49 PM | #47 |
Scooby Specialist
Member#: 192147
Join Date: Oct 2008
Chapter/Region:
NESIC
Location: Maine
Vehicle:2007 STI EfiLogics 422whp 421wtq fpgreen |
tried a buddies maf today and guess what....................it didnt fix it!!! please let us/me know what you guys find.
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09-27-2010, 01:28 PM | #48 | |
Scooby Specialist
Member#: 94816
Join Date: Aug 2005
Chapter/Region:
Tri-State
Vehicle:1993 Rx7 1jz swapped |
Quote:
Did you car idle and drive around town OK? Mine only has issues under boost and that is it. |
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10-01-2010, 09:21 PM | #49 |
Scooby Specialist
Member#: 94816
Join Date: Aug 2005
Chapter/Region:
Tri-State
Vehicle:1993 Rx7 1jz swapped |
Got my new/used coil packs today. No change. Still goes mega rich under anything other than super light throttle and bucks/vibrates under any boost. I reset the computer and in closed loop while the car is warming up, the car is still running stupid rich. I just boost leak tested it again and it is solid. Holds pressure very nicely.
I dont have a damn clue what is up. Im going to pack up and leave it until Tues when I got back to EFI to see if they can sort it out. Honestly I am tired of messing with the damn car and perfectly happy to let someone else figure it out so I can drive the ****ing thing again. The positive on this. Even when I am stressed out and hating life, just getting in the car and driving around makes me feel better. Just to hear the engine/cams and the rumble. I really miss my car |
10-01-2010, 09:41 PM | #50 |
Scooby Specialist
Member#: 192147
Join Date: Oct 2008
Chapter/Region:
NESIC
Location: Maine
Vehicle:2007 STI EfiLogics 422whp 421wtq fpgreen |
Fml!!!!!
Last edited by woodys77; 10-07-2010 at 11:32 PM. |
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