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Check Gauge Light Comes on 90 l98

bobder41

Member
Joined
Oct 19, 2005
Messages
8
Location
georgia
Corvette
1990 coupe l98
I have a 90 L i bought last Sept (55000 miles). The owner of the car put 4000 miles on the car in 12 years, he had a dealer maintain the car once a year. When he had the car checked out in Aug of last year they replaced the computer located by the master cylinder and battery. I drove the car from Penn to GA and the Temp gauge was reading high oil temp normal. The car is only driven on occasions. When I got home took the car a local garage and they replaced the radiator, tsat 195 degree, and hoses and added a 7 ohm resistor to the water temp sending wire for the analog gauge. 3 months ago they replaced the intake and valve cover gaskets (leaking oil).
Question. the car now has 57600 miles on it. I drove it to work today 8 am in Atlanta rush hr traffic 75 miles with a/c on 84 degrees outside with no problems. When I drove the car home 6 pm after about 50 miles the check gauges light came on. All of the analog gauges where normal and showed 3/4 of a tank of fuel. The light stayed on the rest of the way home with the gauges reading normal. Car was at 60 mph for the last 20 miles with a/c on 96 degrees outside. When I got home used an infrared thermometer and took a reading at the t-stat housing with the motor running and got a reading of 210 degrees one fan running a/c off.
At no time did the check engine light come on, nor did the car act up.
Please give me some advise as to what is wrong and how can i read the computer sensor readings that is causing the light to come on.
Thanks in advance Bob
 
thanks but the service engine soon light did not come on, also the computer did not store any codes
 

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