2005 Chevy Silverado Engine sputters

2005 CHEVROLET SILVERADO
63,000 MILES • 6 CYL • 2WD • AUTOMATIC
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BTHOOD
  • MEMBER
  • 3 POSTS
I do not have a MIL on my scan nor do I have a pending trouble codes. It does die and is sometimes hard to restart. I was wondering what is the reference voltage for the tps? I would like to back probe the sensor, but I am unsure what the correct voltage should be.
May 6, 2008 at 8:18 PM
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PEAR69
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 1,482 POSTS
The reference voltage is 12 volts, however the voltage you measure to see if the tps is good is around 5 volts. It will go from 0 to 5 volts (smoothly) as the throttle is opened and closed--I think it is the blue wire.
A bad tps will give you a trouble code--Check the fuel pressure and run some fuel system cleaner with tectron in it. Your engine is famous for a factory defect that causes clogged fuel injectors. Also, make sure that there are no vaccume leaks.
May 7, 2008 at 5:21 AM
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