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Old 03-01-2013, 08:51 PM   #4576
slowgenius
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I gave them to another local STi owner. They are pretty bright
Lol so they are for subaru but not yours?
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Old 03-02-2013, 08:10 AM   #4577
The1SloR/T
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Lol so they are for subaru but not yours?
sylvania bulb replacement guide screwed me over saying it was a 7440 bulb. Looks like a 921 to me..
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Old 03-02-2013, 11:43 AM   #4578
d3v0
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Getting a po244 whenever giving the car some power in 4th gear. Must be overboosting. Running Cobb stage 2 with just a turboback. Did the waste a adjustment on my td04 two turns tighter. Car runs like ****, boost bouncing al over the place. It was so bad I thought maybe the clutch was slipping but I don't think that's the case. I checked all the vac lines and they're all secure. What else should I look into? Restricter pill? Boost solenoid? Halp!
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Old 03-02-2013, 11:48 AM   #4579
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Originally Posted by d3v0 View Post
Getting a po244 whenever giving the car some power in 4th gear. Must be overboosting. Running Cobb stage 2 with just a turboback. Did the waste a adjustment on my td04 two turns tighter. Car runs like ****, boost bouncing al over the place. It was so bad I thought maybe the clutch was slipping but I don't think that's the case. I checked all the vac lines and they're all secure. What else should I look into? Restricter pill? Boost solenoid? Halp!
Did you tighten the wastegate after the problem or before?
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Old 03-02-2013, 12:35 PM   #4580
d3v0
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Did you tighten the wastegate after the problem or before?

Before. I know that tightening it 3-4 turns helps with wastegate flutter, which i was having. I also know that turning it causes some overboost.

No problems before. Then I tighten 4 turns. problems. Now its loosened 2 turns, so its back to being 2 turns tighter than stock. Think i should return to 0 turns and see if problem persists? I find it odd that a highly recommended mod on my WG actuator arm could cause such issues, but its definitely possible I suppose. I just didnt think I could really overboost with only 2 turns on the arm.
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Old 03-02-2013, 12:38 PM   #4581
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Before. I know that tightening it 3-4 turns helps with wastegate flutter, which i was having. I also know that turning it causes some overboost.

No problems before. Then I tighten 4 turns. problems. Now its loosened 2 turns, so its back to being 2 turns tighter than stock. Think i should return to 0 turns and see if problem persists? I find it odd that a highly recommended mod on my WG actuator arm could cause such issues, but its definitely possible I suppose. I just didnt think I could really overboost with only 2 turns on the arm.
Put it back. Move it 1/2 turn at a time. Any preload on the actuator affects your boost control. Not everything ever done on the Internet will give you moar mad powarz.
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Old 03-02-2013, 03:14 PM   #4582
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and i wouldn't put it past dan or max to have already done that, and totally forgot about it. because the cutout.
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Old 03-02-2013, 04:44 PM   #4583
d3v0
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^ fair enough. Ill turn it back. I dont care for power (stock 5 speed) but I just wanted it to stop doing the WG flutter.
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Old 03-02-2013, 04:49 PM   #4584
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if you don't care for power, go to cobb stage 0 and enjoy your flutter free driving.
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Old 03-02-2013, 04:55 PM   #4585
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^ fair enough. Ill turn it back. I dont care for power (stock 5 speed) but I just wanted it to stop doing the WG flutter.
Get a real tune or figure out how to fix it properly. Off the shelf maps are jokes. And all the posts on the Internet on how to make them work 'better' are jokes too.

You will give yourself way too many problems if you start troubleshooting by assuming your car has a problem and the Internet lemmings wrote the bible on what works. If they are using standard Cobb reflashes, they can't help you.
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Old 03-02-2013, 04:58 PM   #4586
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I think you guys are reading into this a bit too much. All I did was shorten the WG arm, now im returning to normal, and hoping it stops overboosting

the car did have a tune on it when i bought it (by dan, circa 2007) that allowed it to run a turboback but it ran stock boost pressure. I got the Cobb AP so I could have an easy to use datalogger and code-reader and might as well toss the stg 2 map on there. its far from perfect (too rich, needs avcs tuning) but its good enough to roll with for now.
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Old 03-02-2013, 05:03 PM   #4587
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You're probably right.

The real problem is the TD04 on a 2.5L. Of course 4th and 5th gear are going to cause problems.

A lot of tension on the WG arm is a band-aid. And not a good one. I think the stock spring is 6-8 lbs if that. If you start cranking down on the spring your control resolution disappears especially with the stock BCS. How many miles on it? A new actuator might help. They do wear out.

Take a good tune off for a crap one. Not sure why you'd expect good results.

Last edited by isis; 03-02-2013 at 05:35 PM.
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Old 03-02-2013, 05:49 PM   #4588
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43,000 miles. Thanks for the advice. I'm gonna ask Dan If he still has that map.
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Old 03-02-2013, 05:50 PM   #4589
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43,000 miles. Thanks for the advice. I'm gonna ask Dan If he still has that map.
I have a cable if you'd like to put it back on.

Actuator prob not worn out by then at stock boost.

Last edited by isis; 03-02-2013 at 05:57 PM.
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Old 03-03-2013, 07:33 AM   #4590
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anybody sking/snowboarding today at 7springs?
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Old 03-03-2013, 11:08 AM   #4591
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I have a cable if you'd like to put it back on.

Actuator prob not worn out by then at stock boost.
Actuator felt solid this morning when I adjusted it back to stock, 0 turns.

Took it for a drive, and the car hesitates like hell under part throttle and watching the AP boost gauge, under steady throttle in third it just bounces from 14 psi to 8 and back up and back down - lurching and hesitating. At first it felt like when a clutch is slipping, you know, grabbing and not grabbing - but it isnt the clutch. So im thinking the WG adjustment didnt do anything. It seems to me the boost control is completely borked. BCS maybe? restricter pill?
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Old 03-03-2013, 11:40 AM   #4592
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What year car?
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Old 03-03-2013, 12:00 PM   #4593
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Dude just take it and get it fixed.
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Old 03-03-2013, 12:54 PM   #4594
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I have an oem ebcs you could see if it fixes the issue, also spare waste gate.

Can't get it fixed (assuming you mean tune) if a part is broken
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Old 03-03-2013, 02:03 PM   #4595
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Originally Posted by d3v0 View Post

Actuator felt solid this morning when I adjusted it back to stock, 0 turns.

Took it for a drive, and the car hesitates like hell under part throttle and watching the AP boost gauge, under steady throttle in third it just bounces from 14 psi to 8 and back up and back down - lurching and hesitating. At first it felt like when a clutch is slipping, you know, grabbing and not grabbing - but it isnt the clutch. So im thinking the WG adjustment didnt do anything. It seems to me the boost control is completely borked. BCS maybe? restricter pill?
Sounds like a vacuum hose or something may have come loose or cracked in that general area - are you sure it doesn't have an aftermarket BCS? If it does a map meant for a stock BCS won't work.
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Old 03-03-2013, 02:28 PM   #4596
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Quote:
Originally Posted by d3v0 View Post
Actuator felt solid this morning when I adjusted it back to stock, 0 turns.

Took it for a drive, and the car hesitates like hell under part throttle and watching the AP boost gauge, under steady throttle in third it just bounces from 14 psi to 8 and back up and back down - lurching and hesitating. At first it felt like when a clutch is slipping, you know, grabbing and not grabbing - but it isnt the clutch. So im thinking the WG adjustment didnt do anything. It seems to me the boost control is completely borked. BCS maybe? restricter pill?
what do your datalogs say the desired boost is, and what about the boost control duty cycle, requested TPS vs actual TPS etc etc.

you said you got accessport for datalog. bring it!
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Old 03-03-2013, 05:43 PM   #4597
d3v0
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Here is one I did last week as soon as I got the AP. third gear pull. Stupid AP doesnt log Boost target with initial settings, so I will do another log tonight with a Boost Target.


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Old 03-03-2013, 06:13 PM   #4598
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Went out and did some more logs. Have a few third gear pulls with different parameters. Will post shortly.
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Old 03-03-2013, 06:27 PM   #4599
d3v0
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Blew a PO244 doing a 3rd gear pull with the cutout open: see datalog:

Log 5: PO244 during run; CUTOUT OPEN

Four more 3rd gear pulls from tonight w/ cutout closed

Log 1
Log 2
Log 3
Log 4

As Jason said, looking at the target versus actual boost; there is a problem. overboosting
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Old 03-03-2013, 08:37 PM   #4600
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I'm sure somebody knows more than me but I'd like to see what it looks like with the original map. It worked fine till you cobb'd it. I wouldn't dismiss that. What's the BCS solenoid look like?

Last edited by isis; 03-03-2013 at 08:44 PM.
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