1990 Chevrolet Silverado 5 0 Eng Idles Great Just Started Spitting Sputtering

1990 CHEVROLET SILVERADO
17,000 MILES
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MAYBEE44
  • MEMBER
  • 1 POST
5.0 eng idles great, just started spitting and sputtering under load, code 15 came up, if I disconnect wiring connector to eng coolant sensor the eng speeds up. Is this normal. Also is there a book or web site that explains what happens if you do things like that?
Feb 13, 2013 at 11:24 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
you have told the computer that the temp is real high and to lean out the misture.

you should have someone look at the reading with a scan tool to see if it is faulty.

it does not mean the coolant sensor is bad.

you compensated for an issue

Roy
Feb 13, 2013 at 11:49 PM
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