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Old 04-03-2013, 10:52 AM   #7226
amalgrover
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Quote:
Originally Posted by wrxsubiemod View Post
Saw a car with the same issue and Sounded the same. He hooked the fpr backwards
This is my guess as well
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Old 04-03-2013, 10:57 AM   #7227
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Originally Posted by amalgrover View Post
This is my guess as well
Yep, that's why I asked what I did. I figure he must have something plumbed wrong! I think he said he had a BAP and if that's installed correctly then it's gotta be plumbing.
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Old 04-03-2013, 11:01 AM   #7228
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Even if the BAP was installed incorrectly, if the pump is working at all, then it has to be the plumbing. The BAP splices into the hot wire for the fuel pump between the controller and the pump; so if it turns on, then you know you hooked it up correctly. At idle (or anything below 5psi), the BAP isn't working at all really. So you can go ahead and rule that out right there.
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Old 04-03-2013, 01:39 PM   #7229
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FPR, In the side, out the bottom.

That means: Fuel pump feeds the fuel rails that then connect on the side, fuel return to the tank on the bottom.
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Old 04-03-2013, 02:20 PM   #7230
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Quote:
Originally Posted by Maxwell Power View Post
FPR, In the side, out the bottom.

That means: Fuel pump feeds the fuel rails that then connect on the side, fuel return to the tank on the bottom.
Yeah that's exactly how it's set up.

Fuel is fed from the pump and T'd into the rails, comes out of the rails into the sides of the fpr and out the bottom to the original return line.

Everything is hooked up correctly and has been hooked up this way for the past year. Car was down from January to mid march and sat with a full tank of E85. Got it back together recently and noticed the funky pump sound. Before the pump had its normal consistent whine.
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Old 04-03-2013, 02:25 PM   #7231
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Did **** corrode? Fuel pump compatible with E85?
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Old 04-03-2013, 02:39 PM   #7232
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the Aero340 pump is E85 compatible...so he SHOULD be good there...I emphasize SHOULD though...

Corrosion from sitting is a possibility, but since the tank was completely full, and I am guessing that it was sealed off from most moisture (unless he has changed the factory fuel tank setup), I doubt it corroded the pump in just 2.5 months.

It is possible that it has gotten gunked up from sitting though. I have seen this happen where E85 was left in the injectors, rails, lines, etc. during an engine rebuild. After sitting for a long period of time, E85 gets pretty sticky, and this can clog things up. If you run a tank of 93oct and some fuel system cleaner through there, it should clear out anything that might be in there.

Whatever it is, it definitely sounds like things inside the pump are not turning smoothly. I would try running 93 and a fuel system cleaner, and if that doesn't work, I would pull that pump out and see if you can find anything going on with it. I would do this before doing anything with your fuel pressure.
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Old 04-03-2013, 02:47 PM   #7233
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Its worth a shot. When I got it back up and running I ran a full tank of 91 through it, but no fuel system cleaner.

BTW thank you for the responses, always nice to get another perspective.

edit: Pulled the pump, nothing looked out of the ordinary or heavily gunked up. I replaced the fuel filter while I had it out and the inconsistent whine is still there but it is much less frequent. If the tank of 91 doesn't help i'm going to send it back to Aeromotive for some testing, since they will test it for free.

Last edited by breaksOFTEN; 04-03-2013 at 05:20 PM.
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Old 04-03-2013, 07:43 PM   #7234
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Alright people. I am having some issues with hard starting all of the sudden and this happens after it cranks over:

http://www.youtube.com/watch?v=iLT1v...ature=youtu.be

I dropped in BNIB front O2 and Air Filter is new. Checked Pvc and cleaned the IACV along with new gasket. No leaks as far as I can tell.

After it warms up its fine.


Winter E85????????? Which is like E65! I am stumped.


Any thoughts?
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Old 04-03-2013, 11:34 PM   #7235
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Quote:
Originally Posted by sackytar View Post
Alright people. I am having some issues with hard starting all of the sudden and this happens after it cranks over:

http://www.youtube.com/watch?v=iLT1v...ature=youtu.be

I dropped in BNIB front O2 and Air Filter is new. Checked Pvc and cleaned the IACV along with new gasket. No leaks as far as I can tell.

After it warms up its fine.


Winter E85????????? Which is like E65! I am stumped.


Any thoughts?
What's the ambient temp? It sounds like the cold cranking tables/ IPW.
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Old 04-03-2013, 11:39 PM   #7236
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40 degrees. Tune has been fine all winter long.

When it has got really cold I would let the FP cycle for a bit and it would get up and go.

But this sweeping of a/f ratios is weird.

Last edited by sackytar; 04-03-2013 at 11:44 PM.
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Old 04-03-2013, 11:43 PM   #7237
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Originally Posted by sackytar View Post
40 degrees. Tune has been fine all winter long.
Mine did that back at the start of this winter, I had to mess with it some. Anything below around 60 and the ethanol won't easily burn. Are you tuning it? I would just see about adding some fuel to those tables and see how it changes it. Then again I'm not really a tuner
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Old 04-03-2013, 11:46 PM   #7238
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Did you actually leak check the car by pressurizing the system? Just checking clamp tightness or spraying carb cleaner doesnt work. You need to take a compressor and pressurize the system. Although if you did develop a leak, your AFR should be off at WOT also.

Before changing the tune i would
- leak check
- check the injectors for gunk
- check fuel pump assembly to make sure everything is in tact

If you have a pump gas tune, you can try running a tank of pump through it....it could clean off a gunked injector. most of the time when problems arise out of no where after running/starting correctly on the same tune, it is because you developed a leak or some other mechanical issue. The only other thing that will really change is the coolant based cranking and warmup tables. If the temp dropped drastically from before and you're now utilizing previously unused cells....then it could be the cause.

The tables step down like this in coolant temp.....68*, 50*, 32*.....so if you dropped from teh 68* to the 32* cells....it could change things. The cranking/warmup tables start changing very drastically at 50* and start adding alot more fuel.

the hard cranking is probably the cranking tables...the other AF swings are prob from the warmup tables.

To get a better idea of the problem, datalog the following
A/F Correction #1 (%)
A/F Learning #1 (%)
A/F Sensor #1 (AFR)
Coolant Temp
Engine Load (Direct)* (g/rev)
Engine Speed (rpm)
Intake Air Temp

Then plot up the data vs time. AF Ratio, correction & learning on 1 axis...coolant temp on the other. Then simply modify the warmup tables by teh appropraite AF Correction at the various coolant temps.

You will get a plot like the ones below




Last edited by Phatron; 04-04-2013 at 12:06 AM.
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Old 04-04-2013, 12:05 AM   #7239
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I love my tuner^ no homo
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Old 04-04-2013, 12:05 AM   #7240
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Ron to the rescue!
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Old 04-04-2013, 08:46 AM   #7241
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Thanks Ron. I am going to check out everything this weekend. Been following your build on Facebook. Holy **** you are going balls out.
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Old 04-11-2013, 08:39 AM   #7242
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Quote:
Originally Posted by sackytar View Post
40 degrees. Tune has been fine all winter long.

When it has got really cold I would let the FP cycle for a bit and it would get up and go.

But this sweeping of a/f ratios is weird.
Get a fp tester. Cycle the key in the on position, listen for fp to prime then watch the gauge. If pressure falls quickly to zero it will cause an issue of being hard to start while cranking. Seen it many times on a stock fpr.
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Old 04-11-2013, 09:49 AM   #7243
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Yeah found a giant boost leak at the turbo inlet to recirc elbow. Guess I might have tweaked it when I had the engine out. Started first try today. So that prob was it. Lol

Still gonna do a fp test just to do it. Funny I was looking at aftermarket fprs last night. Only running 23 psi of boost. Is it needed?

Thanks

Last edited by sackytar; 04-11-2013 at 10:03 AM.
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Old 04-12-2013, 12:17 AM   #7244
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I wish I understood that graph Ron...

I find my problems arise when I start touching stuff. I then go back and see what I fukt up this time.
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Old 04-12-2013, 11:05 PM   #7245
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So...anyone up for a read and a mysterious gremlin? I know this isn't the free tuning or advice forum so anyone that can point me in the right direction will get nice paypal gift from me . Just trying to see if my tuner or i missed anything since everyone makes mistakes.

Background on my car is 43k miles 2011 WRX.

Mods:
Cobb Accessport
Invidia V2 Catless Downpipe
Invidia N1 Catback
AEM CAI Intake
FMS TMIC
Forge By pass valve
Grimmspeed 3-Port EBC
DW65 Fuel Pump
Injector Dynamics 1000cc
NGK One step colder plugs

I had been running 91 octane for about 30k in my stock injectors. I had purchased ID 1000cc injectors and had them installed & tuned for at a very reputable tuner here in norcal. To be safe and rule out everything i had a leakdown and compression test done before the injectors were installed on my car to make sure asking for a tad bit more power was even an option. My results were great! Good compression and leakdown numbers so we went ahead with the install and conservative tuning. Everything was good for 13k miles on E85! Car ran great idled great and had no hiccups other then the occasional cold start issue but that's a common thing on E85. Tuner was able to fix it easily. Fast forward to about two weeks ago my car randomly started running rich for some reason, car soon later threw a check engine light p2096 & p0137 I did some research and found out that code relates to the rear 02 sensor dying so the car is just dumping fuel. I was just going to buy a new one but since i'm catless my tuner told me he could just turn off the code on my map and it would be fine. He sent me a updated map and i ran it for a bit but later i had some more codes pop up running this map that all still pertain to the 02 sensors P0037, P0141, and the P0137 every once in a while still. All of them seem to point around the 02 sensors so i got sick of it and finally just took the car to the dealer and they replaced Bank 1 sensor 1 & 2 and a fuse that was blown. Check engine light went away but the car was now acting funny at idle and misfiring. I made sure they didn't flash the car with a OEM Subaru map or anything of the sort. The only thing they touched and replaced was the sensors. With this idle issue now being very annoying in stop and go traffic. It only happens at idle. I thought perhaps i should run a tank of 91 octane through the system to see if it helps, my good buddy had his ID2000cc injectors become clogged due to the break down of 91 contaminates when he switched to E85 after a few thousand miles. I drove until my E85 tank almost completely empty and dry then i switched to my super conservative 17psi 91 octane map and filled up and have been running 91 octane for about two weeks. The issue is still there on 91 as it was on E85. I had my NGK one step colder spark plugs in for probably 31k miles and thought that might be the reason for this occasional stumble in idle and misfire but even with fresh plugs gapped correctly it was still there. I even found a PFFFE code but it never threw a check engine light. The only reason i found the PFFFE code was because i was playing around looking at the new graphics in the latest accessport firmwire upgrade and randomly went into the trouble shoot menu and sure enough a code was there.

I then made an appoint back at the tuning shop for a leakdown and compression test to see if the 13k miles i put on the car with E85 did damage to the motor. My tune was super conservative for E85 as well only 16psi because i was clutch limited. It made 350hp/350ish-wtq on the dyno (reads high) so my tune wasn't nearly pushing the envelope i don't think on E85. The results came back almost 99% identical to my first leakdown and compression i had when i first got tuned by them. After the test they checked for leaks and found nothing. They then they sat in my car with the laptop and verified something was quirky with the maps my tuner had sent me to turn off the CEL codes i was getting and adjusted it via accesstuner race and it seemed fine for about 20 minutes after i left the shop but soon after coming off the highway and coming to a stop the issue came back and was noticeable. Same misfiring in 1 and 3 unless i have the air conditioning on. For whatever strange reason this issue is almost totally gone when the air conditioning is on full blast. So this is where i am today, my tuner now thinks that it could be my injectors. He also told me he's never seen many problems with the Injector Dynamics 1000cc ever but there is a first for everything. I'm really puzzled on where to go from here we are going to pull them out Monday hopefully and check them out and see if they are clogged or anything and try another set of injectors or my stock ones and see how the car runs. This whole situation is troubling since the car performs normally once you are above 1.5k rpm but the fact that it's causing misfires at idle(900rpm) scares me.
I can't imagine misfires are good for my motors health even if i'm not even tuned aggressively. I really want to put the car back on E85 but i'm nervous about these misfires and don't want to get stranded if this issue gets worse. Some people keep telling me it's a tune issue, some say coilpacks, and some are saying injectors. Hopefully it's one of those...

PS: Sorry i wrote a book but wanted you guys to know the full story. Also don't think i mentioned this whenever i change fuels (91 octane & E85) i go through 5 full tanks before even hitting boost on either fuel to get all the old fuel out of the system. With this idle issue going on my car hasn't seen boost at all for about 2 in a half weeks.


I believe these are three E85 logs right before i took it off E85 and went back to 91. Car had not seen 91 in 13k miles.

https://www.google.com/fusiontables/...BqVz7C8ZInbf84

https://www.google.com/fusiontables/...P2yYLNzZZ8E0q8

https://www.google.com/fusiontables/...TIr3pMwC5FiIps


Here are two logs on 91 octane that were taken recently to make sure the E85 is all out of the lines. These should show when the car is acting odd at idle.

https://www.google.com/fusiontables/...muv9onosBeU8ko

https://www.google.com/fusiontables/...ruAXm2wPJgRPOA

Last edited by PROcede; 04-12-2013 at 11:56 PM.
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Old 04-12-2013, 11:38 PM   #7246
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Sounds like an injector issue to me... I'm sure someone in here will be able to help you. Unfortunately I don't know enough about it specifically to be the savior you are looking for.

There have been plenty of people that have had similar issues with the ID 1000's though. have you pulled them yet ?
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Old 04-12-2013, 11:49 PM   #7247
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Quote:
Originally Posted by SubieLuvin View Post
Sounds like an injector issue to me... I'm sure someone in here will be able to help you. Unfortunately I don't know enough about it specifically to be the savior you are looking for.

There have been plenty of people that have had similar issues with the ID 1000's though. have you pulled them yet ?
We haven't pulled them but we checked for leaks and everything looked good. I have an appointment with my tuner on Monday to pull them and see if their clogged or something. He said he had another set on hand and we could swap them out and see if that helps. I tried looking for postings of ID 1000cc failing but haven't found any. Thanks for reading i know it was a long one heh.
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Old 04-12-2013, 11:53 PM   #7248
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I don't have any links myself but I've read here and there. Like all aftermarket injectors there are horror stories.

Swapping out for a different set and going from there is what I would do.
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Old 04-13-2013, 11:20 AM   #7249
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Is there any reason your idle timing is so low and varies so much? On the E85 map it is fairly steady, but it is only 10-11*, and on the pump gas map it is anywhere from 10-15*. That is pretty low, and that big of a variance on the pump gas map isn't helping anything either. Try bumping your base timing at idle up to like 16*. This may or may not be CONTRIBUTING to your problem, but it was the only abnormal thing I saw in the logs.
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Old 04-13-2013, 12:28 PM   #7250
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Quote:
Originally Posted by SubieLuvin View Post
I don't have any links myself but I've read here and there. Like all aftermarket injectors there are horror stories.
.
Are you sure your not confusing the ID1000s with another injector? Ive never seen anyone with any issues using those injectors and Ive ran 2 sets. The one car was basically stock minus injectors and ran better than stock.
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