mematney
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I have a problem with my speedometer on my '91 LS400. I've noticed lately people seem to be driving slower than speed limit. Then I got a ticket for speeding on a 10 hour drive. That got me to thinking and I checked my speed with an app on my phone. I am actually going 70mph when the speedometer says 55.
Odometer works correctly and cruise control works fine. I did not have any new code. I have had code 25 off and on.
Do I have a speed sensor problem?
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Ok I don't believe it is the sensor now. From other things I have read I think the needle needs to be adjusted/calibrated. When I am stopped the needle is below the 0. As I drive my phone speedometer shows 11 mph when my needle hits 0.
Now I just need to find the post that tells how to fix it.
thanks for listening.
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Thanks for the info. I just found a new employee at my tire shop who is quite knowledgeable with Lexus, had him change my O2 sensor. He checked lower connections for my transmission but I think I may have a problem at the ECU since my heater valve was leaking. Thanks again for the info.
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I've searched Sewell, problem is when I put in my year it only lists valve stems. When I leave it for all years I finally see some parts I need. Thanks for making me try harder, I'm making progress now.
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I've been searching to buy #1&2 Solenoid valve for '91 LS400 A341E transmission, also the OD Direct Clutch Speed Sensor. I started getting code 62 & 67 when raining but now the code comes in dry conditions. What are the part numbers and where can I purchase them to replace? The only problem I notice is it does not downshift when going up a hill.
