Giann Posted May 30, 2019 Report Share Posted May 30, 2019 Hi guys, I got and lancer evo stroker running on vipec ecu. few days ago I was cruising and suddently the car start to missfire, the rpm needle jumps random and when I try to boost I get boost cut. can somebody please analize this datalog and maybe see what the problem can be? Log 29-05-19 1;49;03 pm.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 31, 2019 Report Share Posted May 31, 2019 Yes, you have some serious trigger errors going on, it looks like almost everytime you go above about 3800RPM. You might need someone with an oscilloscope to get us a capture of the cam and crank signals to get to the bottom of it. What model evo is it? Make sure it has resistor spark plugs fitted. Quote Link to comment Share on other sites More sharing options...
Giann Posted May 31, 2019 Author Report Share Posted May 31, 2019 5 hours ago, Adamw said: Yes, you have some serious trigger errors going on, it looks like almost everytime you go above about 3800RPM. You might need someone with an oscilloscope to get us a capture of the cam and crank signals to get to the bottom of it. What model evo is it? Make sure it has resistor spark plugs fitted. Hi Adam thanks for taking your time for looking at my log. Its and evo 7 with an 2.3L stroker engine, is the problem cause mainly from the cam and crank sensor or can it also be from the stock coil pak maybe failing? Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 31, 2019 Report Share Posted May 31, 2019 Trigger error means the ECU has received a signal from the cam or crank sensor that it didnt expect, but that doesnt always mean it is related to the cam or crank sensor - it could for instance be the cam belt has slipped so the cam tooth is occuring ion the wrong place or it could be something like electrical interference that is inducing random voltage spikes into the trigger signal. An oscilloscope capture allows you to check for many of these with just one picture. The reason I ask about resistor spark plugs is the Evo ignition system can generate a crazy amount of noise without them and will often cause trigger error. Quote Link to comment Share on other sites More sharing options...
Giann Posted May 31, 2019 Author Report Share Posted May 31, 2019 Mmm Im at garage check the timing is good and bought a brand new crankshaft sensor and install it but still with the same missfire.... Quote Link to comment Share on other sites More sharing options...
Giann Posted May 31, 2019 Author Report Share Posted May 31, 2019 And this on red is always on after the problem start, never was there before. Launch control limit activated and Rpm limit activated Quote Link to comment Share on other sites More sharing options...
Giann Posted June 1, 2019 Author Report Share Posted June 1, 2019 I think if I had stock evo computer the problem shows up and car was already fixed. Quote Link to comment Share on other sites More sharing options...
Giann Posted June 4, 2019 Author Report Share Posted June 4, 2019 Problem solved, was the camsensor... Quote Link to comment Share on other sites More sharing options...
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