New Member RX-7 Technical Post your first technical questions here, in an easy flame free environment, before jumping into the main technical sections.

Tachometer and Speedometer Issues

Thread Tools
 
Search this Thread
 
Old Jun 1, 2012 | 08:04 PM
  #1  
johnson_racing's Avatar
Thread Starter
Junior Member
 
Joined: Jun 2012
Posts: 15
Likes: 0
From: Wichita, Kansas
Tachometer and Speedometer Issues

Hey RX7 owners, help me out.

The tachometer is not reading correctly. It hardly ever reads the rpms between 2500 and 3000. Like as soon as it hits 2500, it instantly jumps to 3000 rpms and sits there until the rpm actually rises over 3000. And again at 5500 to 6000. I was told that maybe this could be a result of someone installing white face gauges in the passed but I'm not sure.

The speedometer. While sitting at a stop light and I have the car in gear, I can accelerate the engine and my mph will jump to 20-30 mph without actually moving. It even reads on the odometer too so I am accumulating miles without even moving. What is causing this?

Any and all help would be greatly appreciated. I have even considered installing aftermarket gauges.
Reply
Old Jun 1, 2012 | 09:56 PM
  #2  
misterstyx69's Avatar
Retired Moderator, RIP
Tenured Member: 20 Years
iTrader: (142)
 
Joined: Sep 2005
Posts: 25,581
Likes: 136
From: Smiths Falls.(near Ottawa!.Mapquest IT!)
Year and series??..
Reply
Old Jun 1, 2012 | 10:13 PM
  #3  
sick_dippin's Avatar
clutch rider
 
Joined: Jun 2012
Posts: 24
Likes: 0
From: los angeles.
more common a problem then you would think.
Reply
Old Jun 2, 2012 | 09:44 PM
  #4  
johnson_racing's Avatar
Thread Starter
Junior Member
 
Joined: Jun 2012
Posts: 15
Likes: 0
From: Wichita, Kansas
Its a 1993 RX7 R1.
Reply
Old Jun 2, 2012 | 10:17 PM
  #5  
misterstyx69's Avatar
Retired Moderator, RIP
Tenured Member: 20 Years
iTrader: (142)
 
Joined: Sep 2005
Posts: 25,581
Likes: 136
From: Smiths Falls.(near Ottawa!.Mapquest IT!)
I have heard of a glitch with the cluster on Fd's.(I am an FC guy myself but I read a lot of stuff on here.lol!)
Take a look in the 3rd Gen Specific section or in the 3rd gen archives.If anything you can find the solution.It does exist and it is common.
Reply
Old Jun 4, 2012 | 04:34 PM
  #6  
johnson_racing's Avatar
Thread Starter
Junior Member
 
Joined: Jun 2012
Posts: 15
Likes: 0
From: Wichita, Kansas
Thank you very much guys! At least now I know I'm not the only one with this issue.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bauer778
3rd Generation Specific (1993-2002)
10
Nov 4, 2015 04:42 PM
Steven_McKinley
General Rotary Tech Support
12
Sep 5, 2015 10:48 AM




All times are GMT -5. The time now is 12:11 AM.