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Megasquirt trouble with 3.0.3s

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Old Apr 30, 2010 | 11:21 AM
  #26  
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The continuity test is the one to trust. If you've got continuity from the primary injector pins on the MS to the secondary injectors something is wrong.

Ken
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Old Apr 30, 2010 | 11:36 AM
  #27  
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I dont know. It was like 12am and I was tired. Ill do it again with the manifold off so I can see whats going on.
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Old Apr 30, 2010 | 12:28 PM
  #28  
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Okay, its confirmed. Continuity is correct for primaries and secondaries. Primaries to 32, 33 and secondaries to 34, 35. I had a loose pin on one of my secondary plugs, it was kinda coming out of the back of the plug. Im not sure if it was enough to make it not fire though.

Gonna run staging on the table in a while, and see what happens. will have a datalog to post if I still have issues. Im setting my bank 2 to the same as bank 1 in injector characteristics, even though my secondaries are 4.7 ohm injectors. I have excellent shielding and excellent grounding. So hopefully they are not causing a problem.

Still wondering about those staging settings I should be running.
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Old Apr 30, 2010 | 02:08 PM
  #29  
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That seemed to fix it. I am leaning more towards the staging table rather than the loose injector. It was instantly better. Posting a msq. have to make a new log because mine was too big even in .zip.

I will tune with this for a while.

What do you recomend for accel enrichment? TPS or MAP, or both?

My mapdot gets a lot of jumping around, but im concerned with TPS not doing the job because it is a narrow range to full throttle. Some of the mapdot could be from the untuned areas in my ve right now making the map go crazy.

Is there a maximum VE value that we are not supposed to go beyond? because Im nearing 150 around 100Kpa, and I have 15psi of boost to get through.
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Old Apr 30, 2010 | 04:11 PM
  #30  
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If your VE values are getting too high, try turning on "incorporate AFR." That will help flatten out the table a bit.

For accel, I use EAE for all but the quickest throttle movements, and for those I use TPSdot, although I'm going to switch to MAPdot as soon as I put the car back together.

If you're getting a lot of MAP jitter, try tuning the MAP sampling settings. Make sure also that your vacuum line is connected to both rotors. I have mine connected to the surge tank on the manifold as that seems to smooth things out the best.

Ken

Ken
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Old Apr 30, 2010 | 04:12 PM
  #31  
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ugh. When Im cranking, both injectors are spraying what just the primaries should. pw1 and pw2 are reading like 2.5ms. Thats way too much fuel to get started. How can I fix this without turning off the staging table?
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Old Apr 30, 2010 | 08:22 PM
  #32  
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i think i have that worked out. cranking pulls like no vacuum, and i think it was trying to stage.

i cant find incorperate afr

nevermind i found it. Not where I thought it would be.
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Old May 1, 2010 | 01:05 AM
  #33  
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I made some adjustments to the map sampling in the lags screen.

Can you give me a quick rundown of how to use the Incorporate AFR setting?

1. Do I need to set EGO on during this?
2. Is this going to alter my ve table as I drive or is it something I have to do afterward?
3. Is this a closed loop process?
4. Is it better than using ve analyzer in Logviewer? or is it a ve analyzer thats active while driving?
5. I assume I should turn it off when I tune boost...

I saved my msq where I am now, and made a copy to use this Incorporate AFR feature in case it screws me.
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Old May 3, 2010 | 10:55 AM
  #34  
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Originally Posted by smackhead999
I made some adjustments to the map sampling in the lags screen.

Can you give me a quick rundown of how to use the Incorporate AFR setting?

1. Do I need to set EGO on during this?
No.

2. Is this going to alter my ve table as I drive or is it something I have to do afterward?
Most likely you'll have to retune after turning it on.

3. Is this a closed loop process?
No. It can be used with closed-loop EGO, but all it does is factor desired AFR into the final fuel equations. So once you've tuned with it turned on, if you want to change the AFR of a part of the table, you don't have to retune VE, just change the AFR in the AFR table and you're done.

4. Is it better than using ve analyzer in Logviewer? or is it a ve analyzer thats active while driving?
It's not better than or worse than because it's completely different.

5. I assume I should turn it off when I tune boost...
Nope, it's not a closed loop algorithm, so no need to turn it off ever.

Ken
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Old May 3, 2010 | 03:34 PM
  #35  
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ok, so I still have to tune like I have been, but when in the future I want to run leaner say in my cruise bins, I just adjust the afr bins in that cruise area, and then it will do it for me...

Ok I thought it was some new interactive ego control or something, because there just isnt a lot of info on it. Pretty much just the algorithm for adjustment.

So effectively, I could continue to use the VE analyzer in Logviewer, or use ego while driving with no pressure pipe on my turbo to adjust the ve table through out the ranges and allow that to try to hit my target afr's?

The ego does adjust to the afr table right, within the parameters you set in ego control?

I never used the ego feature before and just did it all by datalog and adjust. Id like to see if this is easier and less time consuming.
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Old May 4, 2010 | 04:28 PM
  #36  
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Ugh. Back to tuning with VE analyzer. Dont really like the ego. I see why you should only use it in cruise areas.

I think Ill be good for a while. Seem to have worked out all my issues and now I need to tune for a while. Thanks for the help Ken
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Old May 4, 2010 | 04:35 PM
  #37  
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I've used EGO in non-cruise areas but if you're using the PID method you have to get the numbers right to avoid oscillation, and that can be something of a challenge.

Ken
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Old May 5, 2010 | 01:24 PM
  #38  
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I dont think I was using PID. I had no Idea what it was so I didnt mess with it.
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