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180sx limiter issue


Panos MZR

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***WRONG SECTION*** IS G4X

 

Hello,

I have installed a silvia g4x plugin on an s13 and I have an issue were it cuts out at around 5000-6000rpm. I don't see reaching any limiter. When I progressively depress the throttle it goes all the way to the redline(7500) . I'm attaching some logs. 
Tried trigger filtering but still does it. 

Running on the base map 

Log 2020-07-24 1;50;49 pm.llgx Log 2020-07-24 1;52;43 pm.llgx Log 2020-07-24 1;58;32 pm slowly rising tps.llgx

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Two of your logs just show 1 second of idling, the other is just a free rev.  Can you do a log of the actual problem occurring.

Is the boost controlling ok?  There are 4 counts of boost limit being hit in the saved statistics with a max MAP of 286kpa being achieved.

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First up you are running very lean based on your Lambda 1 reading and it looks like it is missing at around 5000 rpm on the full throttle log as the lambda oscillates between ~1.2 and ~0.8.

I would start by fixing your fueling as unless the lambda cal is wrong it looks like it could be causing problems.

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Agree with Vaughan that it looks like the fuel table needs some work, even in the "progressive" log Lambda is ~1.2.  But I would say your symptoms suggest you may have a lack of ignition energy.  You may be able to try closing the spark plug gap or a little more dwell depending on what coils you have.  Your batt voltage is quite high so dwell is quite low.

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