can anybody help us! please??

[ryebread929]

ok so we got a ton of work done last saturday at joes house.

2003 WRX sedan 86k miles that was already stage 2 tuned with cobb intake megan tbe and brentuned

we added: Walbro, Up pipe, STi TMC, STi Pinks, VF39 Turbo, and Iridium Plugs.

Problems:

Turbo needs to be removed again and housing replaced due to broken nipple on cold side for boost control solenoid (should be here tomorrow)

since changing oil 300 miles ago its down 2 quarts!!?? not sure if its a leak or worse...

and when it does run and drive it will not boost it gets about 7psi and then coughs and hiccups and runs like poo.


im not a subaru tech and this is my first major swap and im asking anyone who has knowledge for help!! i have the car in my dads heated garage with every tool and power tool you could ever want and i am very mechanically inclined just not so much with subies.


is their anyone in the tilton area that can stop by maybe friday afternoon or saturay morning and help me figure this out???

im buying a new oem subaru oil filter and crush washer and going to 10-30 instead of 5-30 to take care of the oil level for NOW. but i need help gettiing the turbo out and back in and also checking for leaks and getting it ready to get stage 3 tuning....

if anyone can help me out of this jam id really appreciate it, my gf is having to borrow cars to get to work and i hate to ask for help but we do have a little cash as well as all the pizza and beer you want (or soda lol)!!! if anyone can lend me a hand please pm me or txt/call me at 603-998-3114 once again thank you in advance!

Ryan

[Bu11dogg2]

Boost leak? it probably has a lot to do with your broken nipple

As far as the oil.... dunno man? have you looked it all over to make sure you're not leaking?

[2.5guy]

I will do some research, never delt with this personally but Nasioc and RS25 are great for tech problems

[batorr]

I had a simular problem to yours after I did my swap. Turned out that my fuel pump was defective (that caused the jumping). The tune also burnt out 2 of my spark plugs. But I would start with the turbo. If something happend to the turbo after the tune these problems would accure as well and it may need to be retuned when the turbo's fixed. 1st, did you keep the pill that was placed in the tube where the nipple gets connected? That pill is very important. 2nd, did you test the turbo to make sure it wasn't leaking oil? you can remove the down pipe or top mount intercooler and see if either has oil in it. If it does you have a bad turbo. Also the vf 39 has a port for a water spray. I believe that it needs to be caped off if it's not in use. Also if the turbo has any shaft play (were you can wiggle the impler) that can screw up the boost. As for the oil leak it could be comming from the oil drip hose under the intake manifold. If you replaced the fuel injectors you probably needed to unhook this to get the manifold of. Check for oil leaks under the TMIC. I believe it's right next to the throttel. The only other thing I can think of is that you may have bad cylender rings from the tune and oil is mixing with the fuel. If this is happening you'll see blue smoke comming from the exhause. If it was like my car, it could be leaking at the valve stems and thats not a pretty job.

[Bombay994]

with that nipple broken off, your boost control system will only run wastegate pressure ~7psi, fix that and your boost will be fine. Your oil issue is most likely turbo related as its the only thing you changed that has to do with oiling. You could be either A. dumping oil onto the ground out the bottom of the turbo if it wasnt hooked up right, or B. Burning it up through the turbo. Good luck dude, sounds like all may get better once that cold side gets swapped....

[ryebread929]

with that nipple broken off, your boost control system will only run wastegate pressure ~7psi, fix that and your boost will be fine. Your oil issue is most likely turbo related as its the only thing you changed that has to do with oiling. You could be either A. dumping oil onto the ground out the bottom of the turbo if it wasnt hooked up right, or B. Burning it up through the turbo. Good luck dude, sounds like all may get better once that cold side gets swapped....

yea it took 1 quart today to top it off. started it up and its running a little choppy due to the turbo, and it IS burning oil. white smoke even after idling for 10 minutes. i used a little bit on the injector o rings and on the intercooler piping to make sure it slid all the way on, but maybe the turbo feed isnt tight enough or something? the vf39 came off of a 03 wrx that did the same swap and he said the turbo has 30k miles total life on it.

[BG @ BrenTuning]

I had a simular problem to yours after I did my swap. Turned out that my fuel pump was defective (that caused the jumping). The tune also burnt out 2 of my spark plugs. But I would start with the turbo. If something happend to the turbo after the tune these problems would accure as well and it may need to be retuned when the turbo's fixed. 1st, did you keep the pill that was placed in the tube where the nipple gets connected? That pill is very important. 2nd, did you test the turbo to make sure it wasn't leaking oil? you can remove the down pipe or top mount intercooler and see if either has oil in it. If it does you have a bad turbo. Also the vf 39 has a port for a water spray. I believe that it needs to be caped off if it's not in use. Also if the turbo has any shaft play (were you can wiggle the impler) that can screw up the boost. As for the oil leak it could be comming from the oil drip hose under the intake manifold. If you replaced the fuel injectors you probably needed to unhook this to get the manifold of. Check for oil leaks under the TMIC. I believe it's right next to the throttel. The only other thing I can think of is that you may have bad cylender rings from the tune and oil is mixing with the fuel. If this is happening you'll see blue smoke comming from the exhause. If it was like my car, it could be leaking at the valve stems and thats not a pretty job.

wat.

I'm not sure how one gets conclusive evidence of a tune burning your plugs and problems with your car?

It's very simple if the problems occurred after the installation, it's most likely 99% of the time related to the work you just did. K.I.S.S. :cool:

Smoked vf39's spewing oil out of the exhaust are not uncommon.

[batorr]

wat.

I'm not sure how one gets conclusive evidence of a tune burning your plugs and problems with your car?

It's very simple if the problems occurred after the installation, it's most likely 99% of the time related to the work you just did. K.I.S.S. :cool:

Smoked vf39's spewing oil out of the exhaust are not uncommon.

The work on my car was done months prior to the tunning. After the tunning these probles accrued and a list of problems came up. Parts were replaced starting with the plugs. That got all the cylenders running again but boost wouldn't go above 10 psi when it was tuned to run 18 psi. The fuel pump died a month later. After replacing the pump that car started jumping between 4-5K. After getting it re-tuned it ran fine. As to why it wasn't running right until being retuned I have no idea but this was my experience.

[ryebread929]

OK Update.... tore it all down got the turbo out, found the turbo inlet wasnt tightened at all when we re installed it last week. got the turbo drilled and tapped with a new 90 degree elbow and got the Manual boost controller hooked up

put it all back together, the MBC works great and i can control the boost, idle is perfect, sounds good and small revs are good.

under a load when you get into the boost the turbo end is working awesome, however at 4500-5000 rpms it starts to sputter and cut out and the check engine light FLASHES. my guess is fuel related, im going to put in the stock fuel pump and see where that leads me, if that doesnt help then ill try the stock injectors, the plugs are brand new


there is still blueish white smoke coming from the exhaust, and the turbo and throttle body had no oil in either, and this is all coming after replacing all of the parts

[bigd_wright]

Is this vehicle actually tuned for the stage 3 parts?? or still stage 2? Also id have the engine light checked and see what she says and go from there!

[ryebread929]

Is this vehicle actually tuned for the stage 3 parts?? or still stage 2? Also id have the engine light checked and see what she says and go from there!

still stage 2 tuned. shouldnt make a difference as far as injectors and fuel related issues

[bigd_wright]

still stage 2 tuned. shouldnt make a difference as far as injectors and fuel related issues
Actually it probly will...bigger injectors...more flow and you are not tuned for whats in the car yet...i would stay out of boost until tuned for parts that were installed...maybe BREN can chime in...

[ryebread929]

ok well i think we are all set. it is NOT burning oil it is coolant from the up pipe when i removerd the turbo. im getting pools of coolant under the car and from the exhaust but i think thats just from the spatter everywhere. my only concern is that maybe the coolant return line in the bottom of the turbo isnt on all the way.

i ran some fuel injector cleaner and seafoam in the tank and just ran 3/4 a bottle of seafoam through the BOV return line. she idles and revs freely no issues or sputtering at all. i can go right through the gears with the MBC All the way down at 7psi and it sputters at 5500rpms then it shoots up to redline through 1st 2nd and 3rd. havent gotten on a road to do 4th or 5th but id say that all i need is a fresh tune because the stutter at 5500rpms i think is tune related. bigger pump adn bigger injectors and still on a tune set up for stock pump and injectors.... what do you all think?

[BG @ BrenTuning]

should be ready for tuning tomorrow now that the issues are fixed :)

[ryebread929]

should be ready for tuning tomorrow now that the issues are fixed :)

yes sirrr see ya tomorrow.

[batorr]

You didn't replace your fuel pump did you? I don't think that the stock fuel pump can handel those injectors.

[BG @ BrenTuning]

I believe he has a walbro

Alot of stock subaru's (06 wrx+, 05+ legacy, 04+ sti) come with injectors that big and don't have walbro 255's.

Certain cars, in my experience, need them, like 05+ legacys at the edge of stage 2 and 09+ wrxs. They tend to be hard to get below 11.5 AFR's without them.

[ryebread929]

I believe he has a walbro

Alot of stock subaru's (06 wrx+, 05+ legacy, 04+ sti) come with injectors that big and don't have walbro 255's.

Certain cars, in my experience, need them, like 05+ legacys at the edge of stage 2 and 09+ wrxs. They tend to be hard to get below 11.5 AFR's without them.


It has a walbro 255 to go with the injectors :] and it will be tuned tomorrow.

it sits right at .05 bar on the boost gauge up until the 5500rpm stutter then from 5500 to redline goes to 1bar. she should run like a champ tomorrow

[batorr]

I believe he has a walbro

Alot of stock subaru's (06 wrx+, 05+ legacy, 04+ sti) come with injectors that big and don't have walbro 255's.

Certain cars, in my experience, need them, like 05+ legacys at the edge of stage 2 and 09+ wrxs. They tend to be hard to get below 11.5 AFR's without them.
I tried running mine with sti pinks on the stock fuel pump first but all it did was cause my car to buck when I got on the gas. The walbor cleared up that problem.

[ryebread929]

forgot to add that the manual boost controller is on the lowest setting

[BG @ BrenTuning]

I tried running mine with sti pinks on the stock fuel pump first but all it did was cause my car to buck when I got on the gas. The walbor cleared up that problem.

it really has nothing to do with the equation until you get to tuning and are trying to reach a desired afr, sounds like your problem was a coincidence. The walbro pressure is regulated by the fpr anyways.

Stock STi/LGT/FXT/06+ and such run sti pink sized injectors with a similar to wrx fuel pump with no problem. :D

[BG @ BrenTuning]

It has a walbro 255 to go with the injectors :] and it will be tuned tomorrow.

it sits right at .05 bar on the boost gauge up until the 5500rpm stutter then from 5500 to redline goes to 1bar. she should run like a champ tomorrow

why are you redlining it untuned :unamused::unamused::unamused::unamused::unamused: :unamused::unamused:

with an mbc on a vf39 it should hit peak boost at the spool up range and taper towards redline not the other way around, are you sure your fitting is working?

[ryebread929]

why are you redlining it untuned :unamused::unamused::unamused::unamused::unamused: :unamused::unamused:


i mean debugging it and road testing at higher rpms...... not redlining.... thats bad

and the MBC is all the way down and stays low in the boost until after the little stutter then it went a lil higher after..... if i turned up the mbc from the lowest setting(which it is on now) then it makes more boost at the proper rpms.....

[BG @ BrenTuning]

i made a new boost leak tester too

[ryebread929]

i made a new boost leak tester too

oh yea??

[BG @ BrenTuning]

Just in case.

[batorr]

it really has nothing to do with the equation until you get to tuning and are trying to reach a desired afr, sounds like your problem was a coincidence. The walbro pressure is regulated by the fpr anyways.

Stock STi/LGT/FXT/06+ and such run sti pink sized injectors with a similar to wrx fuel pump with no problem. :D
I asked the subaru tech that installed my injectors why the car was bucking and he said that while the wrx and sit fuel pump have the same pressure ratings the wrx pump had a different volume flow then the sti one and thats why they have different part numbers and was "most likely" the reason for the bucking. I put in the walbor because it was cheaper then a new sti pump and I heard that if I upgraded injectors it would hold up to them. Have you ever tuned a wrx with pinks or higher grade injectors with a stock wrx fuel pump without any problems?

[BG @ BrenTuning]

Yup, do it all the time. Maybe 1 out of every 10 cars has lower fuel pressure and afr is harder to control (lower it) then I know it needs a pump. I've had it happen to me on walbro fuel pumped cars too, when they get of higher mileage.

[Seoul4korea]

At that point fuel is still controlled by the ECU so injector pulse and such is still regulated. The fuel pump may operate at a higher pressure but as long as you have your rising rate fpr then reguardless of the fuel pump it wouldn't cause you to run even more rich. For example, I have a 1JZ with stock injectors in right now, with my Walbrow I have installed it doesn't cause me to run even more right or give me problem. besides having a walbro just means that the fuel pump you have can meet the demand of the injectors. Some supra's run twin walbro's just to meet the fuel requirements. Fuel pump selection is based off of engine demand.

Also Ryan my guess about your problem with the check light and such is maybe your running to lean in higher RPM? your still running your fuel map for your old injectors and you just added a way bigger turbo then what your tuned for so your check code is prob. a knock sensor or miss fire code? Your AFR is a bit high at this point. how much does your tuner normally charge for tuning?

[batorr]

Yup, do it all the time. Maybe 1 out of every 10 cars has lower fuel pressure and afr is harder to control (lower it) then I know it needs a pump. I've had it happen to me on walbro fuel pumped cars too, when they get of higher mileage.

My stock fuel pump had about 135k on it when it got tuned. That could have been the problem

[batorr]

At that point fuel is still controlled by the ECU so injector pulse and such is still regulated. The fuel pump may operate at a higher pressure but as long as you have your rising rate fpr then reguardless of the fuel pump it wouldn't cause you to run even more rich. For example, I have a 1JZ with stock injectors in right now, with my Walbrow I have installed it doesn't cause me to run even more right or give me problem. besides having a walbro just means that the fuel pump you have can meet the demand of the injectors. Some supra's run twin walbro's just to meet the fuel requirements. Fuel pump selection is based off of engine demand.

Also Ryan my guess about your problem with the check light and such is maybe your running to lean in higher RPM? your still running your fuel map for your old injectors and you just added a way bigger turbo then what your tuned for so your check code is prob. a knock sensor or miss fire code? Your AFR is a bit high at this point. how much does your tuner normally charge for tuning?

When you say twin walbro do you mean it's running off of 2 seporate fuel pumps?

[BG @ BrenTuning]

My stock fuel pump had about 135k on it when it got tuned. That could have been the problem

Ok, now it's making sense - that makes a huge difference. You are right for sure.

[BG @ BrenTuning]

car is tuned and no problems :)

[Seoul4korea]

When you say twin walbro do you mean it's running off of 2 seporate fuel pumps?

yes sir. Two walbro pumps running side by side. Those are for the pigs with like 1400+ whp

[ryebread929]

shes all tuned.... goes like hell..... she couldnt be happier..... all the bugs are out...


just gotta figure out why the directionals make her high beams flash and sometimes make her lights go on and off...... kinda weird.

[BG @ BrenTuning]

It goes real good ! :)

[ryebread929]

:squee:

[Seoul4korea]

did you get any numbers?????? Come on we need the numbers man!

[bigd_wright]

^Gotta get on a dyno for numbers...road tunes dont give that info...but dont worry there will be plenty of dyno days this year! :up:

[Seoul4korea]

ohh thought you did a dyno tune

[BG @ BrenTuning]

road dyno said 28xwhp, 18.5 psi. I kept it conservative. Car pulls great.

[batorr]

Nice! Congrats