ls2 tacho help
11-02-2009, 01:01 PM
#1
Staging Lane
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ls2 tacho help hi guys i am having trouble getting the tacho working on a rx7 with a ls2 in it. it is the later e40 ecu (ive had no trouble before with the e38 type), i have tried the search and get no real answer, my wiring pin out says pin 48 on the blue plug but that pin is green on my plug ? and others say it needs a 12v with a resistor ?, any help would be most helpful as its done bar this !!!
11-03-2009, 06:10 AM
#2
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hi guys i am having trouble getting the tacho working on a rx7 with a ls2 in it. it is the later e40 ecu (ive had no trouble before with the e38 type), i have tried the search and get no real answer, my wiring pin out says pin 48 on the blue plug but that pin is green on my plug ? and others say it needs a 12v with a resistor ?, any help would be most helpful as its done bar this !!!
in HP's make sure it is frequency... then the 12v resistor trick is if it still wont work... place a 3kohm resistor between ign 12v and the tacho wire.. acts as a pull up..
and yes pin 48 on X1 Blu plug is output for tacho..
