stock temp gauge issues - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to   Members

General Miata Chat A place to talk about anything Miata

LinkBack Thread Tools
Old 03-22-2009, 02:54 PM   #1
Thread Starter
Join Date: Feb 2008
Posts: 27
Total Cats: 0
Default stock temp gauge issues

My stock temp gauge stopped working. Every once in a while it will give me a good reading and then it drops all the way down. Any hints on a repair? The car is a '95. Thanks.
sxevegan is offline   Reply With Quote
Old 03-22-2009, 03:41 PM   #2
Junior Member
Join Date: May 2006
Location: Vancouver Canada
Posts: 104
Total Cats: 0

The full cold position indicated infinite resistance across the gauge, so you have a broken or intermittently connecting wire somewhere between the gauge cluster and the temp sensor itself. I would start by throwing a Multimeter on the sensor itself and check that it has an appropriate resistance. 183 ohms should put the needle right on C and 20 ohms right on H. If you warm the car up and then check the resistance of the sensor (disconnect the wire from it first) it should be somewhere between those values. If it is infinite, change the sensor. If it isn't start working your way back along the wire with the multimeter looking for a loss of continuity.
matttheniceguy is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 AM
Recommended Tire Temp for best friction thumpetto007 Race Prep 4 09-27-2015 06:16 PM

Thread Tools

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

All times are GMT -4. The time now is 10:32 PM.