Hi all respected members of pakwheels, this is my first thread. My problem is that my Tachometer (RPM) is not working after engine swap from 4G13 to 4G93 SOHC on mitsubishi lancer CK1. The meter was fine before the swap. The ECU has the 4 grips and i dont remember the model number. The TACH signal pin is 58 i think. I cant get it to work as i've changed 3 ECU's and the test light dont show any signal. i've heard that the signal is weak and can't be detected by the test light. so please tell me what to do. i've checked the meter and its fine... One more thing the older engine was carby with a distributor and this one is a coil pack EFi. PLEASE HELP!!!!!!!!