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Old 10-05-2013, 07:59 PM   #26
SkateAndDestroy
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What intake is it, the AEM right? I doubt its maxed out but you are getting close I bet. You would have to do a log and see what the maf g/s or maf volts look like.

Your vacuum numbers are normal, mine are the same...
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Old 10-05-2013, 08:08 PM   #27
nate_fisher
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I know a while back I was having a problem were I would get a maf related cel when I would hit peak boost but he upped a table and it has not happened since. Or maybe it was a map related lol I can't remember but yes it's a aem intake.
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Old 10-06-2013, 12:52 PM   #28
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Quote:
Originally Posted by nate_fisher View Post
Could it be that my maf is maxed out?
that would not cause a trim issue.
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Old 10-06-2013, 01:16 PM   #29
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nevermind

Last edited by nate_fisher; 10-06-2013 at 03:30 PM.
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Old 10-11-2013, 08:03 PM   #30
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Well tuner took a look and it looks like my maf is scaled correct so I must have a leak some were. It does not learn in c and d when I am wot or just cruising it only learns negative if I give it enough throttle like 3/4 just enough to get it to begin to boost it will learn -.1 every time I do it. But if I am just putting around or go full wot it does not seem to learn.

I made a boost leak detecter at home depot that will hook on to my turbo inlet I just need to know a couple things on what I need to cap off. I have dual catch cans that intersect the lines from the inlet from the crank case and pcv and then go back to the inlet. I am going to unhook the lines from the inlet on the catch cans and plug them but do I want to plug the lines that go to the crank case and pcv? I will be taking the oil filler cap off the bleed any excess pressure but wanted to know if the pcv and crank case should be plugged or left open? Or do I just plug the pcv and leave the crank case catch can hooked up? I will also use some of my kids bubble mix to put on any of the noisy areas to see if it blows bubbles to confirm.

Last edited by nate_fisher; 10-11-2013 at 08:14 PM.
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Old 10-12-2013, 04:15 PM   #31
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Anyone?
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Old 10-13-2013, 05:08 PM   #32
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going to leak check this tomorrow wish me luck!

Last edited by nate_fisher; 10-13-2013 at 06:26 PM.
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Old 10-13-2013, 07:30 PM   #33
SkateAndDestroy
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Im at the airport so I didnt really read the whole thread about the rewiring stuff, but I bet you'll prob not find any leaks. Was the fueling mods done after the last time it was tuned? If you are running a higher fuel pressure, that will effect what the injectors flow. You would need to adjust the fuel injector scalar right? I would think the higher pressure is why you are running rich in the D range. Its always a good idea to check for leaks though.
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Old 10-14-2013, 09:38 AM   #34
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Yeah it has been touched up a couple times since the pump and fpr were installed to bring the the afr leaner to compensate. I don't think I will be driving down to evo vs sti day with it like this. I can get to learn in the d range by going from cl to ol with just enough throttle and boost which is normal but then it never goes back it stays there. Then if I do it again it goes more and more negative each time until it finally goes lean. I am hoping for a leak I guess I will find out today.
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Old 10-14-2013, 04:21 PM   #35
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Found 7 leaks that I never knew were there so many that I will have to tackle some tomorrow. 2 fmic couplers, bpv flange, bpv hose on bpv and inlet and both my catch cans.
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Old 10-19-2013, 09:01 AM   #36
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How do you go about shutting off afr learning 1 D just wondering?
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Old 10-19-2013, 06:10 PM   #37
SkateAndDestroy
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Look for a table called "A/F Learning #1 Modify Airflow Limit (Max)". Then take a look at what your fuel trim ranges are set up like. Its under table "A/F Learning #1". On my model, stock they are:

A: up to 5.6 g/s
B: 5.6-10
C: 10-40
D: 40 til when open loop starts

They may be different on your car, or Ray might have changed them. In this case you would set the Max airflow limit table to 39 g/s so nothing is learning in the D range. If the Max Airflow table isn't in your ECU, you can simply change the fuel trims ranges, making sure the D range will not be hit during closed loop.

An example would be:

A: up to 10 g/s
B: 10-40
C: 40-80
D: 80+

I hit open loop between 40-65 g/s on my car, so never in closed loop will I be at 80 g/s, so the D range will always stay zero.
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