StijnFSP Posted April 13, 2021 Report Share Posted April 13, 2021 hi, i have a evo 9 with a fresh engine checked cam sensors over and over can make the di active with a piece of iron infront of the sensor but it wont see the cam engine has kelford cams i added the file when i do the calibration it says 0 on al 4 cam angle points i copied the points in the file from the old engine but it doesnt work any ideas swapped inputs on the ecu etc for testing but nothing evo 9 rood 1.5 bar 2.3liter.pclx Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 13, 2021 Report Share Posted April 13, 2021 Your setup all looks fine. That would suggest either there is no signal at all when it is running, or possibly there is a signal but it is not crossing one of the voltage thresholds. The fact it shows active with metal in front of the sensor with the engfine off suggests it is meeting the thresholds at that time, but there may be something like a large ground offset when its running or something that prevents it. The signal needs to rise above about 1.8V and fall below 1.0V so it is generally pretty foolproof. G4X triggerscope captures DI1-4, but if it shows Inactive all the time then the scope is going to show nothing either. Do you have an osciloscope or a powerprobe? Quote Link to comment Share on other sites More sharing options...
StijnFSP Posted April 13, 2021 Author Report Share Posted April 13, 2021 i have both Quote Link to comment Share on other sites More sharing options...
StijnFSP Posted April 13, 2021 Author Report Share Posted April 13, 2021 4 hours ago, Adamw said: Your setup all looks fine. That would suggest either there is no signal at all when it is running, or possibly there is a signal but it is not crossing one of the voltage thresholds. The fact it shows active with metal in front of the sensor with the engfine off suggests it is meeting the thresholds at that time, but there may be something like a large ground offset when its running or something that prevents it. The signal needs to rise above about 1.8V and fall below 1.0V so it is generally pretty foolproof. G4X triggerscope captures DI1-4, but if it shows Inactive all the time then the scope is going to show nothing either. Do you have an osciloscope or a powerprobe? but also the ground and power are the same as the trigger on, the exhaust cam and thats just fine Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 13, 2021 Report Share Posted April 13, 2021 Since you have a scope that would be a good test, connect the ground clip to the engine and the probe to the cam signal wire while running and give us a photo of the waveform. Some of the power probes a have a "waveform" function which give you a very basic scope type trace on screen with just min and max voltage reported. Quote Link to comment Share on other sites More sharing options...
StijnFSP Posted April 20, 2021 Author Report Share Posted April 20, 2021 so i tessted few thing with the scope i just have a flat line ... i tested with another sensor out of the engine and i got 5 v when nothing is infront of it so it looks like the sensor contantly sees iron because i have a 0.1V signial in the engine checked the trigger and it looks fine i'm going to ask another custumor to pass by so i can check his trigger if its diffrent in distance Quote Link to comment Share on other sites More sharing options...
StijnFSP Posted April 20, 2021 Author Report Share Posted April 20, 2021 i tested on another evo9 and the signial shifts between 0 and 1 volts but the wheels look perfect it just wont work its always low and with the sensor out of the engine its always 1 V Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 20, 2021 Report Share Posted April 20, 2021 The factory ecu uses a 5V pull-up. So the signal should vary between 0-5V with a factory ecu. The Link ECU has a 12V pull-up so I would expect something more like 0-12V when connected to the Link ecu. Quote Link to comment Share on other sites More sharing options...
StijnFSP Posted April 27, 2021 Author Report Share Posted April 27, 2021 found the issue ...the mivec sensor is 0.1mm shorter as the cam sensor got them switched around afther the rebuild the cam sensor can be replaced with the mivec sensor but not the other way around i found out Quote Link to comment Share on other sites More sharing options...
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