Can a bad coolant sensor cause a car to run poorly? Code 15 problem! Need answer fast
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Joined: Sep 2000
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From: Cincinnati, OH
Can a bad coolant sensor cause a car to run poorly? Code 15 problem! Need answer fast
I got a code 15 on my 86 Trans Am now, which on here indicates a low tempature reading at the engine coolant tempature sensor. Which I knew was bad to begin with, because it wasn't kicking my fan on. So I just said the heck with it and ran the fan manually and didn't worry about the sensor. But the car runs terrible at first startup. If I let it run for a bit and drive it, the SES light will eventually turn off.
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Yes! The computer uses the temp of the coolant in many of its calculations to know how much fuel and timing to add. If its reading wrong it will cause the computer to make the car run poorly.
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1991 Camaro Z28
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------------------
West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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