VtrSp1 Posted February 12, 2021 Report Share Posted February 12, 2021 @Adamw i need to convert a old Nissan Micra 4 cylinder 1300 cc , code CG13de engine carburator to Efi with LinkEcu MonsoonX The engine don't have the crank trigger wheel but have the old distributor for spark signal. I chose a 60-2 tooth wheel and an inductive sensor for the crankshaft. In which position should I install the trigger wheel with the two missing teeth with respect to the TDC? Or any position of it can work and can be calibrated via software? Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 12, 2021 Report Share Posted February 12, 2021 The gap will work fine anywhere. However on a 4cyl I like to have it around 90 before or 90 after tdc. This means it is outside of the normal range of ignition timing for best accuracy and secondly, the gap passes the sensor when crank acceleration is stable so the gap is easier to detect during slow cranking conditions. dx4picco 1 Quote Link to comment Share on other sites More sharing options...
VtrSp1 Posted February 12, 2021 Author Report Share Posted February 12, 2021 @Adamw ok, so crank sensor at 90° and the gap at 90° with the engine at TDC 1° cyl? Quote Link to comment Share on other sites More sharing options...
dx4picco Posted February 12, 2021 Report Share Posted February 12, 2021 No, it i's rather 90° between the sensor and the gap. With cyl1 at tdc your sensor can be anywhere angle wise but the gap should be 90° before or after Quote Link to comment Share on other sites More sharing options...
VtrSp1 Posted February 12, 2021 Author Report Share Posted February 12, 2021 Ok thanks for the information about the trigger camshaft wheel, it’s ok a triggger wheel with only one tooth!? I can place the one tooth camshaft in any position or the one tooth need to be in a particular position ( like as 1 cyl intake valve open)? Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 12, 2021 Report Share Posted February 12, 2021 Yes, a single tooth on the camshaft is good. The camshaft tooth can be pretty much anywhere, the only important note is dont have it pass the cam sensor at the same time as the crank missing teeth pass the crank sensor. Quote Link to comment Share on other sites More sharing options...
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