StiCk3

iTrader: (5)

I seem to be running into every unknown problem out there....

97 SC300 w/ 1JZ swap. at the point to wire up the tach properly, only thing is that resistor R109 does not exist on my circuit board. Yes i've searched around and yes i've seen the video, and everyone's is different from my tach. The only resistor that resembles R109 is resistor R2. Can anyone confirm a tach fix for the 97+ SCs?

LexusFTW

iTrader: (7)

R2 is it .

AngrySC3

I wired mine directly to the green wire somewhere on the back forgot the number of the pin.

StiCk3

iTrader: (5)

fixed it for ya

confirmed that R2 works, can't confirm how accurate it is

Sag

So...here I go
Have 94 SC300 with 1jz swap
same problem tach does not work,
I saw the video, but I dont have r109 in that place, I have it elsewhere,
Also did not find R2 resistor.
Any ideas?

Sag

if on the video guy has denso cluster 457952-0984a
I have nippondenso 457952-1411
83010-24483 is the part number,I think, sticker on the cluster.

Sag

Really need help with this one.

Sag

cant believe that every one have -92 or 97+ models.

99SC42

iTrader: (44)

For 92-96 it's R109, what is your question?

93MSB

iTrader: (8)

Sag what year is your car/cluster?

Sag

My car is 1994 Lexus SC300
here are few pics of my dash back side
sc300dash1.jpg
sc300dash2.jpg
sc300dash3.jpg

As you can see there is no R109 resistor in needed place.

93MSB

iTrader: (8)

you need to jump R73 thats above the center connector. my 95 board matches the part number on yours. They must have started using the new PCB boards at the end of 94

here you can see the matching part number


you can see the jumpered R73 above the center connector


a closer pic of the jumpered R73


close up of R73

Sag

Thanx alot.
Will try that later on today
PS
where should I insert 330ohm resistor ? For temp gauge fix.
what wire is that ? I mean connector and pin number ?

93MSB

iTrader: (8)

I'm not sure about the temp guage resistor. I left mine as is, it sits at the second mark instead of the middle which doesn't bother me

Sag

93MSB Thanx alot
finally my dash is alive
feel my self human again.