Mspnp gen1 resets in full throttle/boost - Miata Turbo Forum - Boost cars, acquire cats.

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Old 09-06-2014, 05:38 PM   #1
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Default Mspnp gen1 resets in full throttle/boost

Having problems with the ms1 pnp. Car acts/drives normally if I dont make an full throttle accelerations. When the rpm:s go 4000-7000 the meqasquirt resets itself for some reason. If I accelerate mildly and with just little boost it goes from 0 to 7000rpm just fine.

The car is an 93 eunos, its an ms1pnp and it has toyota cops + turbo kit. It has been doing this for a while...

Here's two datalogs if they are any help.

2014-06-09_20.10.51.msl - Speedy Share - upload your files here

2014-06-09_21.37.42.msl - Speedy Share - upload your files here
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Old 09-07-2014, 10:40 AM   #2
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Sounds like a misfire.

Sorry, I don't trust your 3rd party file host. Please upload your datalogs here.
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Old 09-07-2014, 12:09 PM   #3
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Should be uploaded now. Tried today lower the boost setting but still the megasquirt resets...

+ It will do resetting more often on second + third gear, fourth and fifth it doesnt reset that often.

Thought it was the misfiring but I have tried the toyota coil on plug setup and the gm ls coils allso. Does the resetting with both of them...
Attached Files
File Type: msl 2014-06-09_20.10.51.msl (222.6 KB, 71 views)
File Type: msl 2014-06-09_21.37.42.msl (38.9 KB, 45 views)
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Old 09-07-2014, 12:40 PM   #4
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I had massive issues with mij MSPNP back in the days with cutting out under boost. After trying everything I ditched the whole thing and got a DTA ECU.
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Old 09-08-2014, 12:32 PM   #5
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Are you by any chance using low impedance injectors?
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Old 09-08-2014, 01:57 PM   #6
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The injectors are: EV14, 670 CC, 12 ohm, C, USCAR.

I checked the logs today but I was wondering what the idleDC is doing? It peaks when the megasquirt resets...

I dont have the idle valve anymore and the wires are cutted from the engine bay side.
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Old 09-08-2014, 02:19 PM   #7
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stock coils? >10psi? gap your plugs down.
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Old 09-08-2014, 02:21 PM   #8
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Toyota cops / Ls coils. Tried with both with bkr7e 11 plugs (I think). Gapped them smaller also but it didnt help.
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Old 09-23-2014, 10:25 PM   #9
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Battery terminals connected and tight?

Sensor grounds to ECU ground, NOT engine ground?
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