Learning View Snapshots \ Discussions

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Re: Learning View Snapshots \ Discussions

Postby bigBADbenny » Wed Jun 04, 2014 1:05 pm

Screenshot 2014-06-04 13.04.03.jpg
Screenshot 2014-06-04 13.04.03.jpg (25 KiB) Viewed 3408 times


Whats this all about then?
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Re: Learning View Snapshots \ Discussions

Postby KiDo_Tuning » Wed Jun 04, 2014 1:18 pm

alexeiwoody wrote:
bigBADbenny wrote:Image

TheMightyGonzo: It's a MY06 3.0RB, and it's had an error light which has been on and off since I bought the thing. It seems to trigger when the fuel tank is at about 2/3 full. I originally thought it was an issue around the fuel cap seal being dodgey, but according to subaru both the front cats are busted.

Any advice? Research: http://tinyurl.com/mbfp55v


Is that MGonzo's actual LV?

There's something going on there that looks more serious than a clogged cat. Need logsss and to take a look at ze car... :o


That is actually surprisingly good for a stock H6 actually. Most are like these:
Learning View_SS_D0XJ001T_2012-11-17 16 15 37.jpg
Learning View_SS_D0XJ001T_2012-11-17 16 15 37.jpg (83.74 KiB) Viewed 3406 times

Learning View_SS_D0XJ001M_2012-11-17 20 50 13.jpg
Learning View_SS_D0XJ001M_2012-11-17 20 50 13.jpg (83.75 KiB) Viewed 3406 times
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Re: Learning View Snapshots \ Discussions

Postby KiDo_Tuning » Wed Jun 04, 2014 1:20 pm

bigBADbenny wrote:
Screenshot 2014-06-04 13.04.03.jpg


Whats this all about then?


LV has the trims offset by one column for AF#2
Should read

AF#1 : -1.80 : -0.20 : 0.70 : 0.30
AF#2 : -6.40 : -3.30 : -1.50 : 2.90
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Re: Learning View Snapshots \ Discussions

Postby KiDo_Tuning » Wed Jun 04, 2014 1:23 pm

Also, P0420 happens due to the rear O2 sensor thinking the cat is flowing too much air... not from being blocked.
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Re: Learning View Snapshots \ Discussions

Postby alexeiwoody » Wed Jun 04, 2014 1:53 pm

chimera wrote:IAM was originally designed specifically for the various octane differences in fuel I believe. Hopefully you're not throwing low octane shit in ya tank, turbo cars (especially) hate it. Could be false knock too, check there's nothing loose around the block


His car doesn't have a turbo. It could always be a batch of bad fuel. Maybe run it on 98 next time.

IAM starts at 0.5 for stock tuned cars, upon an ECU reset, and then builds up to 1.000 after ECU sees safe operating behaviour.

His knock sensor is picking up knock even with IAM at 0.6, without even an ECU reset. Maf scaling looks interesting.
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Re: Learning View Snapshots \ Discussions

Postby bigBADbenny » Wed Jun 04, 2014 1:54 pm

SO what would you advise, Matt: check the usual suspects, MAF, vac leaks inlet and zorst side, loose & random stuff in engine bay... and a tune? 8)
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Re: Learning View Snapshots \ Discussions

Postby alexeiwoody » Wed Jun 04, 2014 2:01 pm

KiDo_Tuning wrote:
alexeiwoody wrote:
bigBADbenny wrote:TheMightyGonzo: It's a MY06 3.0RB, and it's had an error light which has been on and off since I bought the thing. It seems to trigger when the fuel tank is at about 2/3 full. I originally thought it was an issue around the fuel cap seal being dodgey, but according to subaru both the front cats are busted.

Any advice? Research: http://tinyurl.com/mbfp55v


Is that MGonzo's actual LV?

There's something going on there that looks more serious than a clogged cat. Need logsss and to take a look at ze car... :o


That is actually surprisingly good for a stock H6 actually. Most are like these:


And yet you agree that it looks bad when another car had a very similar LV: viewtopic.php?f=16&t=19008&start=120#p302718

Now you're saying that most stock H6's drive around with IAM at 0, knock sensor reading detonation even then and Maf scaling at -10...?

If you're saying that in your experience it's normal for stock N/a's to exhibit some knock - OK. Those LV's you posted...they don't look like "most H6's".
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Re: Learning View Snapshots \ Discussions

Postby TheMightyGonzo » Wed Jun 04, 2014 2:05 pm

alexeiwoody wrote:
It could always be a batch of bad fuel. Maybe run it on 98 next time.


I've been using 98 the entire time I've owned it.
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Re: Learning View Snapshots \ Discussions

Postby alexeiwoody » Wed Jun 04, 2014 2:09 pm

TheMightyGonzo wrote:
alexeiwoody wrote:
It could always be a batch of bad fuel. Maybe run it on 98 next time.


I've been using 98 the entire time I've owned it.


Good :ok:

A tune is always a good idea. Just make sure there aren't any mechanical issues, like a faulty sensor.
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Re: Learning View Snapshots \ Discussions

Postby alexeiwoody » Wed Jun 04, 2014 2:16 pm

KiDo_Tuning wrote:Also, P0420 happens due to the rear O2 sensor thinking the cat is flowing too much air... not from being blocked.


A P0420 happens when the rear sensor is reading the same pattern of AFRs as the front sensor. That is - the same amount of fuel coming through, and none being cleaned. That means the cat isn't working or sensor is broken.

Too much air isn't quite what the sensor is there to measure.

Anyway - are you calling 30rbullet a liar? :lol:

30rbullet wrote:Had this problem in my 30rb last year.

Left cat collapsed. Was replaced with standard flow magnaflow cats at $500 each.

Its not the sensors even though they can be an issue yes. But stock exhaust generally always is cats.


They can also be a pain to fit due to sensors being timmid and needing correct placement so function properly.

Look up magmaflow replacement cats.


30rbullet wrote:Don't have the cat was a long time ago. They just clog up over time man and let fuck all through and choke the motor.

When the cats were replaced my power improved and response came back.
Was better on fuel too.
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Re: Learning View Snapshots \ Discussions

Postby bigBADbenny » Wed Jun 04, 2014 2:47 pm

Discussion continues here: Replacing catalytic converters
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Re: Learning View Snapshots \ Discussions

Postby KiDo_Tuning » Wed Jun 04, 2014 3:00 pm

So P0420 occurs when they read the same signal even when the rear O2 sensor is post cat and it is blocked... :shock: Blocked cat getting the same signal is well... interesting.
Didn't realise you had examined the ECU coding that determines the branches that cause individual CEL's

P0420 actually has a rear O2 heater component. Higher flowing magnaflow cats 'should' actually trigger the code more often which they do ;)

Dump pipe only tunes can set off the code all the time, higher flowing cat triggering the code must mean it is blocked right?

alexeiwoody wrote:
KiDo_Tuning wrote:Also, P0420 happens due to the rear O2 sensor thinking the cat is flowing too much air... not from being blocked.


A P0420 happens when the rear sensor is reading the same pattern of AFRs as the front sensor. That is - the same amount of fuel coming through, and none being cleaned. That means the cat isn't working or sensor is broken.

Too much air isn't quite what the sensor is there to measure.

Anyway - are you calling 30rbullet a liar? :lol:

30rbullet wrote:Had this problem in my 30rb last year.

Left cat collapsed. Was replaced with standard flow magnaflow cats at $500 each.

Its not the sensors even though they can be an issue yes. But stock exhaust generally always is cats.

They can also be a pain to fit due to sensors being timmid and needing correct placement so function properly.

Look up magmaflow replacement cats.


30rbullet wrote:Don't have the cat was a long time ago. They just clog up over time man and let fuck all through and choke the motor.

When the cats were replaced my power improved and response came back.
Was better on fuel too.


alexeiwoody wrote:And yet you agree that it looks bad when another car had a very similar LV: viewtopic.php?f=16&t=19008&start=120#p302718

Now you're saying that most stock H6's drive around with IAM at 0, knock sensor reading detonation even then and Maf scaling at -10...?

If you're saying that in your experience it's normal for stock N/a's to exhibit some knock - OK. Those LV's you posted...they don't look like "most H6's".


Yes, it looks bad and I was only agreeing that that IAM is good even though it is under 0.500 since 9/10 are under 0.250 and I have only ever found ONE IAM above 0.750 on a H6.
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Re: Learning View Snapshots \ Discussions

Postby KiDo_Tuning » Wed Jun 04, 2014 3:04 pm

Here is a LV from a NSW dyno tuned H6... owner will recognise it :)

Learning View_SS_D2UH001M_2014-04-23 14 42 07.jpg
Learning View_SS_D2UH001M_2014-04-23 14 42 07.jpg (84.27 KiB) Viewed 3384 times
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Re: Learning View Snapshots \ Discussions

Postby TheMightyGonzo » Wed Jun 04, 2014 3:14 pm

KiDo_Tuning wrote: Yes, it looks bad and I was only agreeing that that IAM is good even though it is under 0.500 since 9/10 are under 0.250 and I have only ever found ONE IAM above 0.750 on a H6.


So my car isn't quite as stuffed as some, thats positive. :D

Where do I go from this point? Replace the headers and cats? Check the O2 sensors somehow?
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Re: Learning View Snapshots \ Discussions

Postby KiDo_Tuning » Wed Jun 04, 2014 3:36 pm

TheMightyGonzo wrote:
KiDo_Tuning wrote: Yes, it looks bad and I was only agreeing that that IAM is good even though it is under 0.500 since 9/10 are under 0.250 and I have only ever found ONE IAM above 0.750 on a H6.


So my car isn't quite as stuffed as some, thats positive. :D

Where do I go from this point? Replace the headers and cats? Check the O2 sensors somehow?


Stock tune runs a lot of unnecessary timing to pass exhaust emissions in the preface H6

Timing.png
Timing.png (154.36 KiB) Viewed 3373 times


Now look at the post face timing

Post_Timing.png
Post_Timing.png (167.64 KiB) Viewed 3373 times
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