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Author Topic: V8-T ME7.1 Load Drops Suddenly, MAF reading normal and rising  (Read 41419 times)
q_dubz
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« Reply #45 on: May 27, 2016, 08:43:25 PM »

Going to be impossible to tune unless you have a more useful logging setup ..
I mean what can I do? I'm using visual me7 logger my ecu just doesn't have a MAF voltage block.
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q_dubz
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« Reply #46 on: May 27, 2016, 11:13:28 PM »

seems here the requested load just drops.
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nyet
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« Reply #47 on: May 28, 2016, 02:20:32 AM »

why not use ecuxplot to actually graph that?
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q_dubz
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« Reply #48 on: May 28, 2016, 07:49:16 AM »

why not use ecuxplot to actually graph that?
ok sure
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vwaudiguy
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« Reply #49 on: May 29, 2016, 07:47:19 AM »

Couldn't you just use a multimeter, and run the wires into the cabin? Put it next to the dash, and have someone take a vid during your run.
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q_dubz
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« Reply #50 on: May 29, 2016, 08:22:09 AM »

Couldn't you just use a multimeter, and run the wires into the cabin? Put it next to the dash, and have someone take a vid during your run.
if I was capping out MAF voltage I'd see the g/s flatline correct? Cause according to the log they're still increasing
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nyet
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« Reply #51 on: May 29, 2016, 10:02:20 AM »

ok sure

That log doesn't show a MAF dip.

You're trying to diagnose two separate things at once. Pick one at time, focus on that. Also, post the logs.

BTW I don't think you're capping MAF. I just want to see voltage during the dip you saw.

The requested load issue is a totally different problem.

Also, what is the hardware difference from stock on this setup?
« Last Edit: May 29, 2016, 10:03:56 AM by nyet » Logged

ME7.1 tuning guide
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q_dubz
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« Reply #52 on: May 29, 2016, 10:25:15 AM »

That log doesn't show a MAF dip.

You're trying to diagnose two separate things at once. Pick one at time, focus on that. Also, post the logs.

BTW I don't think you're capping MAF. I just want to see voltage during the dip you saw.

The requested load issue is a totally different problem.

Also, what is the hardware difference from stock on this setup?
I'm not trying to diagnose two difference things. I'm running a stock MAF and housing. I think/assumed there is a correlation between the MAF and requested load drop. It seems to happen right at 420g/s. I don't see a voltage dip. Never claimed to. I solely want to diagnose the req load drop.
« Last Edit: May 29, 2016, 10:27:09 AM by q_dubz » Logged
nyet
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« Reply #53 on: May 29, 2016, 10:27:29 AM »

I'm not trying to diagnose two difference things. I'm running a stock MAF and housing. I think/assumed there is a correlation between the MAF and requested load drop. It seems to happen right at 420g/s. I don't see a voltage dip. Never claimed to. I solely want to diagnose the req load drop.



The topic says, MAF reading normal and rising, but one of your other logs show the MAF dip.

Please post the logs

Preferably one that has ALL the load request variables.

You may have to do some IDA work if ME7Info doesn't find enough of them.

Also, what are the hardware changes from stock?
« Last Edit: May 29, 2016, 10:34:11 AM by nyet » Logged

ME7.1 tuning guide
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Please do not ask me for tunes. I'm here to help people make their own.

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q_dubz
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« Reply #54 on: May 29, 2016, 10:34:26 AM »

Ah, thats because of i hadn't dialed in my boost curve yet so i'd spike and then level out some and then start dropping boost in the upper rpms.

I only have TWO load variables i can log. Link me to this "IDA work" you refer to. I'm not familiar...

here's the log.

Hardware changes include:

one twin scroll turbo charger
one air/water IC

stock everything else.
« Last Edit: May 29, 2016, 10:36:53 AM by q_dubz » Logged
q_dubz
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« Reply #55 on: May 29, 2016, 10:38:03 AM »

here are my me7info variables list with rough translations...
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nyet
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« Reply #56 on: May 29, 2016, 10:39:59 AM »

Wait, you are adding a turbo to a NA V8 w/o knowing how to disassemble the ECU code with IDA Pro?

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ME7.1 tuning guide
ECUx Plot
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Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
q_dubz
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« Reply #57 on: May 29, 2016, 10:42:44 AM »

Wait, you are adding a turbo to a NA V8 w/o knowing how to disassemble the ECU code with IDA Pro?


i'm not the one tuning it.
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nyet
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« Reply #58 on: May 29, 2016, 10:45:07 AM »

i'm not the one tuning it.

So shouldn't your tuner be able to provide you at least a few RAM locations to help logging?
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
q_dubz
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« Reply #59 on: May 29, 2016, 10:47:29 AM »

So shouldn't your tuner be able to provide you at least a few RAM locations to help logging?
probably, i'll ask. but how do i add those ram locations to the logging program?
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