'90 Ls400 Speedo And Rpm Gauge Run Slow

[DaronMcGuiness]

Hello all,

I bought my lex May 2014 and didn't notice he slight difference in my actual speed versus what my gauges were telling me. Over the year, the needles seemed to slow more to where they are now; at what I've recorded as 65mph on my GPS shows about 43mph on the gauge. This is the opposite effect of what I've seen other posts say about speedometer miscalibration. I also believe my rpm gauge to be slow, I seem to be idling at 0rpm and cruise around 1k. I'm not sure where to go from here as far as fixing it goes but I'm hoping someone can help me out. :> thanks

[1990LS400]

I wish I had known about www.taninautoelectronix.com when I had gauge problems. I recommend contacting them and describing the problems you are having.

[DaronMcGuiness]

Thanks, I'll look into it. I should also mention that I'm running stock rims and tires, but you know.