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Old 06-26-2015, 09:01 AM   #1
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Default DIYPNP map sensor spikes/flutter - problems

connection problem solved!

now its time for some new problems

my map-sensor is reading sometimes peakes/flutters. especially with the acceleration enrichment table (disabled it now).

~2200-3000 rpm its reading +/- 200 kpa/s while just holding throttle (no acceleration - while driving - or just in neutral).

on boost - theres flutter too +/- 150 - 200kpa.

will upload my MSQ and my log later.

Last edited by spidy; 07-01-2015 at 11:12 AM.
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Old 06-26-2015, 09:39 AM   #2
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post your msq. you probably fubared a setting or possible fubared the firmware.
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Old 06-26-2015, 12:00 PM   #3
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this is my latest msq - thx for help
Attached Files
File Type: msq testmap.msq (84.2 KB, 60 views)
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Old 06-26-2015, 08:58 PM   #4
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decided to try a reboot with the boot jumper and a new firmware tomorrow... x
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Old 06-28-2015, 02:37 PM   #5
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so Problem solved... new firmware (3.2.5 tested - cause canīt find the 3.1.0 :/) works again
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Old 07-01-2015, 06:14 PM   #6
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so hereīs a picture of my logfile - map spikes :/


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Old 07-02-2015, 09:09 AM   #7
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where's your MAP sensor plugged in?
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Old 07-02-2015, 11:14 AM   #8
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at the rear port at my manifold (the one you can see near the CAS)

maybe the problem caused by my hose adapter? the DIYPNP got a 3mm hose fitted at the map sensor - the manifold got a 5mm hose. fitted with an hose-adapter
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Old 07-02-2015, 02:16 PM   #9
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thats actually the absolute worst place to put it.

the TB is the second worst.



tee it off the FPR.
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Old 07-02-2015, 03:56 PM   #10
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ok thx - iīll try that.

at my nissans the after TB slots works fine.

thx for help :-)
and sorry for my bad english :/
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Old 07-12-2015, 07:30 AM   #11
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so its better - but still on WOT some points with AE and decelaration :/ sometimes with lean spikes

changed ignition cables -> new magnecore (red) and the pressure hose tee of the FPR port.

maybe other problems? VE and ignition maps crappy?


edit: turned my AE way higher - 0,8ms @ 350kp/s is the first point
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Old 07-12-2015, 01:09 PM   #12
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I don't see a problem, other than crappy tuning. I'd never settle for a VE map that rough, especially near low map and idle. I can't imagine why it has lean or rich spikes with adjacent cells more than 50% out from each other.
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Old 07-12-2015, 06:55 PM   #13
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too much autotune at low kpa-cells :/ need to smooth this cells and finetune the AE :/

Last edited by spidy; 07-12-2015 at 07:45 PM.
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