Gas gauge jumps up halfway and falls back down again

1998 CHEVROLET MONTE CARLO
151,000 MILES • 3.8L • V6 • FWD • AUTOMATIC
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AARON LISTER
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So I bought this car after it sat about six years. Everything works, but the gas gauge does not. Weird thing about it is that when I turn the key, it jumps up about halfway and falls back down. Any ideas?
Oct 25, 2016 at 8:08 AM
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HMAC300
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scan for codes first then a mechanic will have to test the rest of system. he needs to put a special tool on PCM harness to test it.
Oct 25, 2016 at 9:35 AM
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AARON LISTER
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Only code is fuel pressure sensor
Oct 25, 2016 at 4:00 PM
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HMAC300
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then you'll have to take to a mechanic so h e can test it by varying resistance to fuel gauge.
Oct 25, 2016 at 4:36 PM