Cobb Stage 2 91 octane Tune and An Invidia Catless Downpipe? 03 WRX - Page 2 - Subaru WRX Forum
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#16 Old 06-18-2014, 09:34 AM
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He has a good point^^^

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#17 Old 06-18-2014, 06:07 PM
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Quote:
Originally Posted by Bubba James View Post
I'd have the wideband bung welded in first. I have the same setup and now I'll have to remove/rewrap the DP to put one in.
For what? I'm not E-tuning. I'm not tuning it myself. I'm not falling for that (I know I'm gonna' get flamed for this) Cobb access port B.S. If it needs a wide band,I don't know. But $650 for a thing I'm only gonna' use once or twice? No friggin' way!!! What else is a wide band needed for?

If I wanted a wide band sensor bung I'd have gotten the pipe that had one in it. INV HS02SW1DPO It's only $15 more I know but my budget is stretched to the absolute limit.

I'm getting it open source pro-tuned from JR.at P&L Motorsports in August.

All right, where is the distributor cap? I need to find the #1 plug wire to hook up my SUN machine.
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#18 Old 06-18-2014, 07:01 PM
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The wide band just gives you more data. If you were having it pro tuned then the extra data is invaluable. I personally love knowing everything there is to know all the time. If your just gonna drop an etune on and you dont plan on doing any monitoring then it suits you just fine.

No flame intended but it seems dangerous to be running performance tunes without any monitoring. At least run a few logs with your open source cable. Just so the rest of us can put our OCD to sleep.
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#19 Old 06-18-2014, 08:47 PM
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I like the idea of more data too. But what it really comes down to is MONEY. I just don't have the cash to do everything the best way. Ya' know what? This is the wrong place for this...I'm starting a build thread. I promise this will be fun.

All right, where is the distributor cap? I need to find the #1 plug wire to hook up my SUN machine.
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#20 Old 06-18-2014, 09:55 PM
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What does having a AP have to do with getting a wideband? Widebands are good for any kind of tune, and give you a heads up if you start running too lean or too rich, both can damage your motor.
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#21 Old 06-18-2014, 10:40 PM
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Originally Posted by Brockton View Post
What does having a AP have to do with getting a wideband?

"If it needs a wide band,I don't know." Hmmmmm,now where have I heard this before? Oh yea! I said it. Post 17, 2nd sentence, this thread.

I don't know what run a few logs with your open source cable means and what is OCD? I have a feeling those are things for my tuner to worry about.

Guys, calm down, Its an 03. Remember what this thread was all about in the first place? My ECU can take it! Nothing I'm gonna' do is gonna' threaten my engine in any way. I good tune from a professional will just make it better.

All right, where is the distributor cap? I need to find the #1 plug wire to hook up my SUN machine.

Last edited by Fidrat; 06-19-2014 at 12:38 AM.
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#22 Old 06-19-2014, 07:50 AM
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It's your car and by all means do as you wish with it. I think the suggestion was just referring to having the bung for future expansion of a wideband if you like. It's not just up to your tuner to worry about these things during the tuning process. You have the option to keep tabs on paramaters once your tuned so that you can catch catastrophic failure before it happens, just like checking your oil. You do check your fluids don't you? Or do you leave that up to your tuner as well?

ONCE IM TUNED WHAT SHOULD I WATCH
- Wideband - watch your AFR's if they are more than a full point off (IE went from 10.8 to 11.8) stop doing WOT pulls and start troubleshooting
- AF Learnings ABCD - these are the corrections for the 4 sections of your MAF scale. if they are more than +-8%, start troubleshooting.
- IAM/DAM - if the value is less than 1 (32bit ecu) or less than 16 (16bit ecu), start troubleshooting.
- Logs - take periodic logs looking for knock, overboosting, out of whack AFR's
- Learning View - pull learning views and check the ABCD learnings, FLKC, and IAM
- Regular maintenance - check oil every weekend, turbo cars burn oil..catch it early. do your plugs at 50-75% of recommended intervals. clean air filters. check vacuum/boost lines (clamp everything). keep meth tank full.

BEST REAL TIME MONITORING DEVICE - WIDEBAND (AEM UEGO)
- A wideband is by far the best real time monitoring device for your Subaru. The $165 investment could save you a blown motor and $4000.
- Will show you your WOT AFR's. If you were tuned at 10.8 and now your AFR's are 12.5, then you need to start troubleshooting.
- At idle and in closed loop a Wideband mounted in the downpipe will commonly show 15-15.2 while the ECU is targeting 14.7. This is common and merely due to the location of the sensor compared to the stock 02 sensor in the header.
- Since the ECU is using the stock02 sensor for corrections/trimming to 14.7 this means we basically ignore the wideband at idle....and then at WOT we use the wideband and ignore the stock sensor.

if you have anything but stock injectors or stock intake, you need a wideband. but even with stock components i urge everyone to get a wideband....fuel (and oil) is the lifeblood of your motor and you need to monitor it. Subarus are notorious for developing leaks and the wideband can save your motor. AEM Uegos are ~$165 on ebay and $165 is peanuts to protect your $25k-$40k investment.

MOST IMPORTANT RULE OF TROUBLESHOOTING - DO NOT RESET THE ECU
- The ecu stores the IAM, AF Learnings, CEL's and knock learning so by resetting the ECU you are erasing all the troubleshooting data.
- If your car was knocking and the IAM had dropped or had FLKC all over and you reset the ECU, then you are going to knock all over again until the ECU relearns the knock.
- If you had a leak and your ECU learned +25% fueling corrections and you reset the ECU, then your car is just going to run like crap until it relearns the corrections.
- Its only a good idea to reset the ECU if you have collected a learning view, made changes to correct your issue, and fully understand what you are doing.

As I said in the beginning though, these are just tips and suggestions for you. Take them or leave them but, don't get upset for us sharing them. I hope your tune and hard parts install goes well and you are unable to wipe the grin off your face from the newfound power and rumble. Keep us posted!

Adair
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#23 Old 06-19-2014, 12:24 PM
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Quote:
Originally Posted by Fidrat View Post
I don't know what run a few logs with your open source cable means and what is OCD? I have a feeling those are things for my tuner to worry about.

Guys, calm down, Its an 03. Remember what this thread was all about in the first place? My ECU can take it! Nothing I'm gonna' do is gonna' threaten my engine in any way. I good tune from a professional will just make it better.
Fidrat, Im sorry, I was assuming you would be using an open source tune from your tuner. Usually guys get their tune emailed to them, they download their tune, plug a cable from their laptop to install an open source pro-tune. If you are going to P&L Motorsports to have them tune it then a wideband would help them do their job better but its not required. Before you bolt up the new parts it might be worth a call to your tuner to see if they need the wideband for your tune. Just to be safe.

And OCD is Obsessive Compulsive Disorder. Its what keeps some of us up at night worrying about tire pressure and weather or not we locked the car.

Jason
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#24 Old 06-19-2014, 03:44 PM
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Oh the joys of OCD!
The bung is cheap and a great investment.

Thanks a lot, now I gotta check my tire psi and do a few pull logs... Ugggh

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#25 Old 06-19-2014, 05:25 PM
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Originally Posted by BLAZE2099 View Post
Oh the joys of OCD!
The bung is cheap and a great investment.

Thanks a lot, now I gotta check my tire psi and do a few pull logs... Ugggh
Sorry Blaze, Damn its been a while since I logged too......
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#26 Old 06-19-2014, 06:43 PM
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Wow, boo-key bear.Nice fly-by. That was so far over my head I just hope you didn't bump your head on an orbiting satellite.

I'm 49 yrs old. I just got my 1st smart phone last Saturday. I still don't know what I'm gonna' do with it. I've texted twice in my whole life and probably only sent 20 or so E-mails. But, If you need someone to help sync up the carbs on a '65 Pontiac 389 tri-power I'm your guy.

To give you an Idea of what I understood I omitted everything that I didn't get from your post...

It's your car and by all means do as you wish with it. I think the suggestion was just referring to having the bung for future expansion of a wideband if you like. It's not just up to your tuner to worry about these things during the tuning process. You have the option to keep tabs on paramaters once your tuned so that you can catch catastrophic failure before it happens, just like checking your oil. You do check your fluids don't you? Or do you leave that up to your tuner as well?

ONCE IM TUNED WHAT SHOULD I WATCH

- Regular maintenance - check oil every weekend

BEST REAL TIME MONITORING DEVICE - WIDEBAND (AEM UEGO)
- A wideband is by far the best real time monitoring device for your Subaru. The $165 investment could save you a blown motor and $4000.

if you have anything but stock injectors or stock intake, you need a wideband. but even with stock components i urge everyone to get a wideband....fuel (and oil) is the lifeblood of your motor and you need to monitor it. Subarus are notorious for developing leaks and the wideband can save your motor. AEM Uegos are ~$165 on ebay and $165 is peanuts to protect your $25k-$40k investment.

MOST IMPORTANT RULE OF TROUBLESHOOTING - DO NOT RESET THE ECU
- The ecu stores the CEL's and knock learning so by resetting the ECU you are erasing all the troubleshooting data.
- Its only a good idea to reset the ECU if you fully understand what you are doing.

As I said in the beginning though, these are just tips and suggestions for you. Take them or leave them but, don't get upset for us sharing them. I hope your tune and hard parts install goes well and you are unable to wipe the grin off your face from the newfound power and rumble. Keep us posted!

All right, where is the distributor cap? I need to find the #1 plug wire to hook up my SUN machine.
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#27 Old 06-21-2014, 08:55 PM
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Originally Posted by Fidrat View Post
I like the idea of more data too. But what it really comes down to is MONEY. I just don't have the cash to do everything the best way. Ya' know what? This is the wrong place for this...I'm starting a build thread. I promise this will be fun.
yeah def do a build thread! im curious to see how your plan comes out!
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