1hdt voltage drop and rev drop (2 Viewers)

[Jaden]

Hi everyone i have a issue with my 80 i cant solve. whenever i turn on the electricals indicator,heater ect. It drops voltage and effects the rev needle when its on and off ive replace the alternator,battery and cleaned the ground terminal going to the block but nothing has changed would appreciate if anybody knows what is causing it. Thanks

 

[mudgudgeon]

Have you tested the battery charge?
Or tested alternator output voltage?

Ekectrical issues will have zero impact on actual engine revs in a 1hd-t. Once running, it only needs power to the fuel cut solenoid, everything else is mechanical.

 

[Jaden]

Have you tested the battery charge?
Or tested alternator output voltage?

Ekectrical issues will have zero impact on actual engine revs in a 1hd-t. Once running, it only needs power to the fuel cut solenoid, everything else is mechanical.

Yea i got the battery tested before doing the alternator but haven't tested the alternator but i will now thank you