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Old 04-12-2012, 11:09 PM   #176
Fish
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whats the second line on the AFR chart?
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Old 04-13-2012, 12:37 AM   #177
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Boost and AFR are shown on the same graph. The numbers on the left are for the boost reading whereas the numbers on the right measure the AFR.
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Old 04-13-2012, 01:38 AM   #178
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If the 2012 STI has even a slightly safer map. I want it and the dealer said they would install it if it was a option. I will know tomorrow. I am fighting with myself to just throw 5 g's @ this pile and call it a day. But I know its money wasted. Damn. Sad face.
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Old 04-13-2012, 02:19 AM   #179
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This story sucks bro. Damn it!
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Old 04-13-2012, 09:33 AM   #180
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Quote:
Originally Posted by gordyzero View Post
If the 2012 STI has even a slightly safer map. I want it and the dealer said they would install it if it was a option. I will know tomorrow. I am fighting with myself to just throw 5 g's @ this pile and call it a day. But I know its money wasted. Damn. Sad face.
2012 STi air:fuel



It's not safe. Like I posted before, it's running 14:1 (lean) until 4,200rpm and doesn't drop to 11:1 (safe) until 4,900rpm. This is because the EJ engine is antiquated, which is probably why they're going to get rid of it for the 2014 model year.
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Old 04-13-2012, 10:17 AM   #181
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So, 14:1 is not safe? 14.7:1 is stoich for gas though. It should be fine with that. Not max power, but should be safe. But I can understand that some comfort level below stoich should be there on a boosted engine.
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Old 04-13-2012, 11:47 AM   #182
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The delayed enrichment is an emissions mandate. I work for a manufacturer and have had to implement this system. Its a simple fix. Even if you intend to leave the car stock. You can get a tune that will provide a large factor of safety by correctly adjusting the enrichment delay and rpm settings.

The TRQ curve dictates when enrichment is needed. Please to do not listen to hacks telling you to zero all these tables and settings. If you do, You end up with poor mileage and lots of carbon build up in the motor from the over enrichment as you drive around town. Gas is expensive. There is no excuse to just waste it

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Old 04-13-2012, 06:32 PM   #183
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I just installed the Cobb stage 1 on my 2011, it's so much smoother now it's not even funny.
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Old 04-13-2012, 07:41 PM   #184
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Quote:
Originally Posted by Clark Turner View Post
The delayed enrichment is an emissions mandate. I work for a manufacturer and have had to implement this system. Its a simple fix. Even if you intend to leave the car stock. You can get a tune that will provide a large factor of safety by correctly adjusting the enrichment delay and rpm settings.

The TRQ curve dictates when enrichment is needed. Please to do not listen to hacks telling you to zero all these tables and settings. If you do, You end up with poor mileage and lots of carbon build up in the motor from the over enrichment as you drive around town. Gas is expensive. There is no excuse to just waste it

C
Can you explain a little further? Is the EPA forcing Subaru to run a lean tune from 3-4k? I'm assuming it's the same in the WRX, but not a problem because it runs lower boost and TQ?
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Old 04-13-2012, 07:49 PM   #185
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Quote:
Originally Posted by 561wrx
This story sucks bro. Damn it!
Picked it was up today, 2 miles later the same code came back. This time it was for the other 2 cylinders. The dealer can't figure this out. Im back in a rental car. I have photos of my old cylinder walls. I will post them if I can through the android app.
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Old 04-13-2012, 07:54 PM   #186
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This is beyond stupid, I am defeated by this, completely. At least the dealer has been awesome about this. There even going to bring it back to me 3 hours away, when they figure it out... I hope they wreck the ****ing thing beyond repair. Friday the 13th really is bad luck
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Old 04-13-2012, 08:06 PM   #187
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This is beyond stupid, I am defeated by this, completely. At least the dealer has been awesome about this. There even going to bring it back to me 3 hours away, when they figure it out... I hope they wreck the ****ing thing beyond repair. Friday the 13th really is bad luck
That really sucks. You should call SOA and demand a new shortblock (and an upgraded warranty while you're at it). Yours was clearly built on a Friday at 4:59 PM.
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Old 04-13-2012, 08:16 PM   #188
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Quote:
Originally Posted by PraetorianGuard

That really sucks. You should call SOA and demand a new shortblock (and an upgraded warranty while you're at it). Yours was clearly built on a Friday at 4:59 PM.
That shortblock had 8 miles on it, It cant be anything in that new block, uhhh right? The tech looked like he wanted to kill himself. He said he was going to swap coils, and see what happens. He cleared the code 3 times and the code back on each road test. He also mention my down pipe cat might be damaged causing back pressure. No on understands whats going on. I think this car can't be trusted. Starting to consider a chat with SOA. The dealer doesn't make these wheel barrels, they just push the ****ing things. I wish SOA tried as hard as the dealership. F'ing corporations.
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Old 04-13-2012, 08:47 PM   #189
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Keep track of every visit, every nut and bolt, every receipt, etc. it may come in handy if you have to do something like the lemon law.
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Old 04-13-2012, 08:53 PM   #190
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Quote:
Originally Posted by gordyzero View Post
That shortblock had 8 miles on it, It cant be anything in that new block, uhhh right? The tech looked like he wanted to kill himself. He said he was going to swap coils, and see what happens. He cleared the code 3 times and the code back on each road test. He also mention my down pipe cat might be damaged causing back pressure. No on understands whats going on. I think this car can't be trusted. Starting to consider a chat with SOA. The dealer doesn't make these wheel barrels, they just push the ****ing things. I wish SOA tried as hard as the dealership. F'ing corporations.
Don't waste your time with SOA they have nothing to do with your car as you are in New England. You need to call SNE (Subaru of New England), they are located in Norwood, MA and control the distribution of cars, training of techs, advertising (feel the freedom!) and warranty claims. Call (781) 769-5100.
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Old 04-13-2012, 10:04 PM   #191
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Thanks Snowdrift ! I can't seem to post pics from the Android app. Basically, by the looks of things don't you ever use Subaru oil.
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Old 04-14-2012, 02:18 PM   #192
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Quote:
Originally Posted by PraetorianGuard View Post
I'm assuming it's the same in the WRX, but not a problem because it runs lower boost and TQ?
It is the same in the WRX, and it is just as much of a problem for the WRX in my opinion.
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Old 04-14-2012, 03:31 PM   #193
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It is the same in the WRX, and it is just as much of a problem for the WRX in my opinion.
Why don't you see the same ringland failures in the WRX? (most are early 2008 STI)
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Old 04-14-2012, 03:40 PM   #194
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I wish my ringlands would have been the problem. Week 3 of this ****.
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Old 04-14-2012, 03:54 PM   #195
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Quote:
Originally Posted by Snow Drift

Why don't you see the same ringland failures in the WRX? (most are early 2008 STI)
Because WRX stock tunes do not run anywhere near as lean as stock STI's, in the closed to open loop transition.
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Old 04-14-2012, 03:56 PM   #196
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All the maps from 04 and on have the delay and run lean into into boost. 08 included.

C
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Old 04-14-2012, 04:03 PM   #197
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So here was the official explanation on the warranty paper, oh and here what it would have cost me had I tuned it, $4556.73 ..

" Diag. Results found P0303/P0304 cyl #3 and cyl #4 misfire. Completed compression test and leak down. Upon tear found cyl. Hones unevenly worn. Scorned top and bottom of each hone. Replaced engine block and 4 exhaust valves due to not completely sealing post assembly. "
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Old 04-14-2012, 04:32 PM   #198
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Quote:
Originally Posted by Snow Drift View Post
Why don't you see the same ringland failures in the WRX? (most are early 2008 STI)
Some of the graphs I've looked at show the WRX tune not running as lean as the STi, but still too lean for longevity's sake. And others show AFRs as high as a stock STi. The lean areas of the stock tune vary even among WRXs.

2009 WRX: Stock and Stage 1:



2009 WRX: Stock and Stage 1:



The first graph starts to richen up at the 3,300rpm mark whereas the second one doesn't start to richen up until 3,900rpm.

However, the STi seems to richen up consistently after the 4,000rpm mark.

2010 STi: Stock and Stage 1:



2011 STi: Stock and Stage 1:



And now just to confuse the **** out of everyone, take a look at this:

2009 STi: Stock and Stage 1:



Stock is richer throughout the entire RPM range than even Stage 1. So, who's ready to move on to a different engine platform so we can have safe factory tunes on our cars?
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Old 04-14-2012, 04:49 PM   #199
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Every map is blank on android, ? I will try desktop vs.
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Old 04-14-2012, 06:59 PM   #200
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Quote:
Originally Posted by gordyzero View Post
So here was the official explanation on the warranty paper, oh and here what it would have cost me had I tuned it, $4556.73 ..

" Diag. Results found P0303/P0304 cyl #3 and cyl #4 misfire. Completed compression test and leak down. Upon tear found cyl. Hones unevenly worn. Scorned top and bottom of each hone. Replaced engine block and 4 exhaust valves due to not completely sealing post assembly. "
Good for you man, I truly feel for the people that tune a stock car trying to avoid ring land failure only to have an engine fail for an issue such as yours.
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