yulius Posted July 12, 2021 Report Share Posted July 12, 2021 (edited) hello i got some issue, anybody can help me, i got the engine like off like 1sec and it back again when pedals keep accelerate, and sometimes ecu like hank when datalog was record and the rpm it cut sametimes ecu disconect on the new version g4x ver 6.20.67 it was like the cars cant get over 1bar boost, but all the protections it show off, anybody can help me? my cars evo ix jdm with plugin g4x evo ix mods: individual coil and dbw active aem map.llgx Edited July 13, 2021 by yulius Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 12, 2021 Report Share Posted July 12, 2021 I dont see anything ECU related going on in the log, there are no cuts going on. What type of coils do you have? 5ms dwell at 6000RPM seems pretty extreme for individual coils. I would try about half that value. Quote Link to comment Share on other sites More sharing options...
yulius Posted July 12, 2021 Author Report Share Posted July 12, 2021 helo sir Adamw, it just for the test my normal dwel like 3ms i use honda coils, this my new loging todays New folder.rar Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 13, 2021 Report Share Posted July 13, 2021 I still dont see anything related to the ecu. Inj PW, dwell, batt voltage, ign timing & VVT angle is all stable, there are no cuts or trigger errors recorded. So it appears to be a misfire. I would still reduce the dwell further, most of the denso COP coils dont like much more than 2.0ms. Quote Link to comment Share on other sites More sharing options...
yulius Posted July 13, 2021 Author Report Share Posted July 13, 2021 3 hours ago, Adamw said: I still dont see anything related to the ecu. Inj PW, dwell, batt voltage, ign timing & VVT angle is all stable, there are no cuts or trigger errors recorded. So it appears to be a misfire. I would still reduce the dwell further, most of the denso COP coils dont like much more than 2.0ms. hello , i see on datalog name :log1, i see the rpm going up an down start from 4900rpm, why it happen Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 13, 2021 Report Share Posted July 13, 2021 The RPM that is shown in the log is updated every TDC event, so if some cylinders are misfiring you can see a large change in RPM from a cylinder that is working to a cylinder that is not working. Quote Link to comment Share on other sites More sharing options...
Brad Burnett Posted July 13, 2021 Report Share Posted July 13, 2021 Try raising your MAP limit. I have had a couple instances in the past with G4x, where i was getting too close to my MAP limit and it seemed like a misfire. In these instances, there was no sign of MAP limiter activation in the logs or on the PC, yet raising the MAP limit sorted the problem. Quote Link to comment Share on other sites More sharing options...
yulius Posted July 14, 2021 Author Report Share Posted July 14, 2021 8 hours ago, Brad Burnett said: Try raising your MAP limit. I have had a couple instances in the past with G4x, where i was getting too close to my MAP limit and it seemed like a misfire. In these instances, there was no sign of MAP limiter activation in the logs or on the PC, yet raising the MAP limit sorted the problem. hello, my limit was 400kpa now the log shows only 302kpa Quote Link to comment Share on other sites More sharing options...
yulius Posted July 14, 2021 Author Report Share Posted July 14, 2021 On 7/13/2021 at 3:42 PM, Adamw said: The RPM that is shown in the log is updated every TDC event, so if some cylinders are misfiring you can see a large change in RPM from a cylinder that is working to a cylinder that is not working. Hello sir, today i test again use dwell 1-2-3ms but keep same, boost going high now until 2bar but rpm keep erotic when 5100rpm ++ and im try like 6 times, on 2times random not straight ecu show disconnected when the rpm erotic and if i try push pedal in stop position cars, can do revs 8k rpm normal file name ;log12 its shows disconnect when logging was keep running rchive (1).zip Quote Link to comment Share on other sites More sharing options...
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