Help! instrument gauge cluster voltage regulator - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

nismolvr · 05-15-2011, 09:59 PM

OK guys , First off I have searched! Even Used FSM. Not enough detailed info as far as repairing Cluster. Here is my prob. I Have a 1992 240 coupe with HUD instrument cluster. Everything was working fine untill I went to start today and Fuel gauge reads full Always! Also temp gauge Climbs to Hot the moment I turn Ignition ON.Speedo and Tach works . I have pulled fuel pump out and tested Fuel float potentiometer and its working fine. I have checked gauge sending unit and its within specs. I have researched enough and found some links on HUD repair but not On the two gauges . I also read somewhere that the Fuel and Temp gauges share a Voltage regulator wich steps down voltage and if voltage supplied is high reading will be high. I read that this is common and it affects both gauges when Voltage regulator Goes FUBAR. So My question is Where is this Regulator on the Cluster? Where is the DIY writeup if one exists? Has any one had this problem?

05-15-2011, 09:59 PM	#1
nismolvr Zilvia Junkie Join Date: Aug 2006 Location: Modesto,California Posts: 355 Trader Rating: (3) Feedback Score: 3 reviews	Help! gauge cluster voltage regulator affecting fuel and temp gauge! OK guys , First off I have searched! Even Used FSM. Not enough detailed info as far as repairing Cluster. Here is my prob. I Have a 1992 240 coupe with HUD instrument cluster. Everything was working fine untill I went to start today and Fuel gauge reads full Always! Also temp gauge Climbs to Hot the moment I turn Ignition ON.Speedo and Tach works . I have pulled fuel pump out and tested Fuel float potentiometer and its working fine. I have checked gauge sending unit and its within specs. I have researched enough and found some links on HUD repair but not On the two gauges . I also read somewhere that the Fuel and Temp gauges share a Voltage regulator wich steps down voltage and if voltage supplied is high reading will be high. I read that this is common and it affects both gauges when Voltage regulator Goes FUBAR. So My question is Where is this Regulator on the Cluster? Where is the DIY writeup if one exists? Has any one had this problem? __________________ Last edited by nismolvr; 05-16-2011 at 09:15 AM..