Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - Tachometer Issue! S14

R3cK · 09-15-2015, 02:03 AM

also got the tach problem. euro s13 with ca18 swapped to sr20 redtop.
already put in a completely new car harness. checked ground, 12v, new ecu, new cluster. nothing. also checked CAS as descriped in the manual. no clue whats wrong.
put in a resistor, which worked for my buddy with the same swapp.
heard about puls and non puls cluster. -90s and +91s years. dunno. i know about SOHC and DOHC but this is a KA24 thing only.
RPM ecu signal is around 5.1V or 5.2V puls signal (cant measure the frequency but when i throttle up, the voltage doesnt go up, so i think it is puls)

09-15-2015, 02:03 AM	#4
R3cK Zilvia Member Join Date: Nov 2011 Location: bavaria Posts: 159 Trader Rating: (0)	also got the tach problem. euro s13 with ca18 swapped to sr20 redtop. already put in a completely new car harness. checked ground, 12v, new ecu, new cluster. nothing. also checked CAS as descriped in the manual. no clue whats wrong. put in a resistor, which worked for my buddy with the same swapp. heard about puls and non puls cluster. -90s and +91s years. dunno. i know about SOHC and DOHC but this is a KA24 thing only. RPM ecu signal is around 5.1V or 5.2V puls signal (cant measure the frequency but when i throttle up, the voltage doesnt go up, so i think it is puls)