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Hello! I am new to this and I have doubts about the operation of the cam sensor or cam sync. my car is a honda civic with a series B engine, DIS system to do it Coil on plug with Kseries coils, I am using the oem crank trigger (12 teeth) and the factory dealer uses the TDC coil pickup and that is 4 teeth and delete it 3, in the photo you can see at the end of the DIS painted with liquid paper white. The question is the following is how I can determine in which cycle the engine is? the engine ignites but suddenly shuts off as if it were off the cycle. Question 2, I have a damper Ati and when the cam sensor tooth is as close as possible to make contact with the pickup coil this is approximately a 35 degree (see photo) BTDC, does this have to do? Is there any formula? now the firing order begins in cylinder 3, then in 4, then in 2 and finally in cylinder number 1. how can i really know if it is cylinder 3 that starts my firing order? if the firing order were started in cylinder number 3, would it be correct to use cylinder 3 to measure the time light? the REF DEGREE BTDC where would it be good to start 60 or 80 degrees? I hope you can help me then the EMS is WOLF tuner series (Australian ecu) 24 teeth with 5 skip, according to wolf 24 divided between 4 events equals 6 so are 5 skip, filters are 0 crank trigger reluctor rising edge , and cam sync reluctor rising edge, 24 teeth with 5 skip, according to wolf 24 divided between 4 events is equal to 6 therefore they are 5 skip, the filters are 0.

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I'll try and answer your questions although I'm not familiar with the Wolf ECU so can't help specifically on that platform.

First of all the position in the engine cycle (or which cylinder is firing at any particular time) is deduced by the sync input which happens once every engine cycle (or 720 deg). In most cases there is an offset or calibration parameter in the ECU that essentially defines where the sync tooth occurs relative to TDC on cylinder #1. During cranking the ECU waits to see the sync input so it can decide where in the engine cycle it is.

Some ECUs specify a particular point in the engine cycle where the sync tooth occurs (perhaps 60 deg BTDC #1 for example), while other ECUs aren't so fussy. I can't tell you how this information relates to the Wolf product. With regard to your question about the sync location, if you can adjust the offset or calibration in the ECU then this should be workable. Essentially you will set the base timing on #1 cylinder and you'll either be on the correct (firing) engine cycle or you will be on the exhaust stroke and the engine won't run. If the engine won't run but the timing looks correct with the timing light then you can add or subtract 360 degrees from your offset and you should be good to go.

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