Notices
MEGAsquirt A place to collectively sort out this megasquirt gizmo

losing power at higher rpm (bucks)

Thread Tools
 
Search this Thread
 
Old Oct 7, 2017 | 12:07 AM
  #1  
Halcyon's Avatar
Thread Starter
Junior Member
iTrader: (1)
 
Joined: Dec 2006
Posts: 323
Total Cats: 2
From: San Francisco, CA
Default losing power at higher rpm (bucks)

Can someone take a look at this and tell me what's wrong?

I have a braineack built ms2.
To calibrate the MAP do I select MXP4250?
What's showing on tuner studio is different from my gauge.

Also have an AEM afr gauge.
Manual says
0.00 v 10.0 afr
4.99v 19.98 afr
But the values does not match up with the gauge either.

Any help would be greatly appreciated. Trying to get this running to go to MRLS this weekend.
Attached Files
File Type: msl
2017-10-06_18.15.37.msl (190.7 KB, 84 views)
Old Oct 7, 2017 | 12:09 AM
  #2  
Halcyon's Avatar
Thread Starter
Junior Member
iTrader: (1)
 
Joined: Dec 2006
Posts: 323
Total Cats: 2
From: San Francisco, CA
Default

Here's my MSQ
Attached Files
Old Oct 7, 2017 | 01:53 AM
  #3  
O R X O N's Avatar
Junior Member
 
Joined: Jun 2017
Posts: 46
Total Cats: 2
From: Pittsburgh
Default

What exactly are you running for AFR?

I had a gotcha moment earlier on my AEM UEGO when reinstalling ms3x after months of having stock ecu.

When you power it on, what do you see for your P-mode if any? EX P0 or P4?

Some have the ability to replicate narrowband output, and I left mine in narrowband mode for the stock ECU when I put MS in.
Old Oct 7, 2017 | 07:37 AM
  #4  
Akina_Downhill's Avatar
Junior Member
iTrader: (1)
 
Joined: Feb 2011
Posts: 108
Total Cats: 14
From: Thessaloniki
Default

With engine not running, what is your map sensor reading on TS?
Old Oct 13, 2017 | 09:09 PM
  #5  
Halcyon's Avatar
Thread Starter
Junior Member
iTrader: (1)
 
Joined: Dec 2006
Posts: 323
Total Cats: 2
From: San Francisco, CA
Default

Thanks for the help guys.
I got it running and had a blast at MRLS.
Its still not perfect though.
At least I got rid of the dips in power at higher rpm.

Running an AEM 30-4100 in P0.

Which setting do I use to find MAP sensor reading?
i was using boostpsiggauge.
should I be using engine MAP - mapgauge instead?
Old Oct 14, 2017 | 09:47 AM
  #6  
Akina_Downhill's Avatar
Junior Member
iTrader: (1)
 
Joined: Feb 2011
Posts: 108
Total Cats: 14
From: Thessaloniki
Default

Point is, you should see around ~100KPa with the engine not running, and if you are around sea level.
If you are not, then you have wrong map sensor settings, a faulty map, or bent map hose.




All times are GMT -4. The time now is 09:52 PM.