sdaley62

You could get a simple Garmin unit (~$100) for long term testing or use your smart phone app. As far as the ECU, I am guessing that the ODO is stored there but it might also be stored in the gauge unit. Not sure. I have heard that you can read the actual mileage out of the system using an OBDII scanner but I have never tried it. That might be interesting to see if it matches your gauge readout. Any good body shop should be able to read out the mileage and adjust if you have a need to. But again, verify that what you think you saw is indeed always true, that is...the mileage is going up way too fast. A GPS unit will help with that in the 'trip' mode. Maybe you can borrow one.

Ok sounds great I'm happy that I already have a smart phone ready/ also I just manage to invest in a obd2 Bluetooth scanner to use with my torque pro app top sear I'd I can pull off the actual millage and see if I may be able to set it back

If your speedo is correct but your odometer is jumping up in discrete increments, then I would definitely invest in a cheap GPS that can log your miles driven and speed and check against that. If you find that the speed reading is correct but the odo is completely off, then I would suspect an ECU issue. Maybe capacitors. But you have some verification to do before you can find the root cause.

Ok sounds good what brand would you recommend and also/ like if it turns out to be the ecu how to go about bring it back to being accurate.

Does your car have the stock wheels and tires?

Yeah it has the stock wheels and tires currently installed no mods just yet

No the Speedo reads very accurate/ I met with my friend's dad that had a Speedo and used that to clock me/ had him follow me a few places.

Hello. Thought I would chime in. If the odometer is not recording properly, then the speedometer may be off as well. That is the first thing I would look at. Does the speedometer read correctly all of the time or is it reading too fast? A GPS would help in determining.

Hello. Thought I would chime in. If the odometer is not recording properly, then the speedometer may be off as well. That is the first thing I would look at. Does the speedometer read correctly all of the time or is it reading too fast? A GPS would help in determining.

Hello. Thought I would chime in. If the odometer is not recording properly, then the speedometer may be off as well. That is the first thing I would look at. Does the speedometer read correctly all of the time or is it reading too fast? A GPS would help in determining.

I completely forgotten to note this down there is chattering under my dash not sure if it could be the fuses or relays. Not sure as to how to go about trouble shooting

Like after I got it I sat and took pictures for a good few days then started driving

Ooh and day that I realized was when I decided to show off my dream car about a good week after I got to start as my daily/ and I found out about the motor by going to Lexus of Palm Beach

Yea it's a pre owned/ like what made me realize was when I glanced at the odo it was at 76661 then after that it jumped to 76702 just after 13 miles off city driving. Then I hit the trip/odometer reset then tried to drive home (drove 40 miles on odo) I did the same on my way to work on the freeway it read correct. I'm not sure if it did the same for the previous owner but the motor was swapped

My odometer is counting too fast. the rest of the cluster works but the odo count is off. The odo counts properly only on the freeway. Any advice on this please and thank you (oh according to the record engine was swapped for another 2jzge)