Go Back   Club Lexus Forums > Lexus Model Forums > LS Models > LS400
Sign in using an external account
Register Forgot Password?

Can i use a 91' transmission in my 93' car?

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 08-08-14, 01:05 PM   #1
Terje1
Driver School Candidate
Trader Score: (0)
 
Join Date: Oct 2011
Location: Europe
Posts: 30
Default Can i use a 91' transmission in my 93' car?

As topic.


So i got a 93 with a 91 tranny and my speedometer is showing about 30 miles too much all
the time.
The needle is not flickering or jumping around at all,it just show way too high speed.

What can be wrong?

Does the 93 transmission have less "teeth" on the sensor wheel?
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
Terje1 is offline   Reply With Quote
Old 08-09-14, 02:33 PM   #2
steve2006
Lead Lap
Trader Score: (0)
 
Join Date: Jan 2007
Location: UK
Posts: 671
Default

Could be different as the 90-92 has a mechanical odometer and the 93-94 has an electronic display odometer.
Seems strange though as you would have thought if the speed sensor was incorrect you would get a percentage error so 10% up at 30 would read 33 and at 60 it would read 66MPH not a 30MPH error throughout the whole speed range.
I'm asuming the needle is a zero when the car is stationary?
steve2006 is offline   Reply With Quote
Old 08-09-14, 08:03 PM   #3
Yamae
Lexus Test Driver
Trader Score: (0)
 
Join Date: Aug 2011
Location: Japan
Posts: 850
Default

There's a design change and there's a no direct compatibility.
In order to overcome this, you need to use an interface circuit which converts the signal to match. But this converter is not sold at all as a unit in the market. A PIC micro controller, a FPGA or some discrete circuit can be a choice to make a converter by someone who is capable.
Yamae is offline   Reply With Quote
Old 08-10-14, 02:37 AM   #4
Terje1
Driver School Candidate
Trader Score: (0)
 
Join Date: Oct 2011
Location: Europe
Posts: 30
Default

Quote:
Originally Posted by steve2006 View Post
Could be different as the 90-92 has a mechanical odometer and the 93-94 has an electronic display odometer.
Seems strange though as you would have thought if the speed sensor was incorrect you would get a percentage error so 10% up at 30 would read 33 and at 60 it would read 66MPH not a 30MPH error throughout the whole speed range.
I'm asuming the needle is a zero when the car is stationary?

Yes,The needle is at zero when the car is stationary.
Terje1 is offline   Reply With Quote
Old 08-10-14, 02:37 AM
 
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Premium Gasoline Necessary? pointman GX - Second Generation 34 05-13-14 08:10 PM
Transmisson swap disp0sal GS - First Generation 16 01-16-14 10:07 AM
How to replace transmission maarisssa Performance & Maintenance 2 08-05-13 02:08 AM
MD For sale- 18"x8" Enkei Tarmac rims/wheels and tires for RX300 Smartazz91 Wheels and Tires Classifieds 5 02-01-13 04:35 PM
Automatic Transmission Fluid Bankswood Performance & Maintenance 3 09-28-12 05:27 AM

All times are GMT -7. The time now is 11:18 AM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info