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2000 Chevy Blazer stalling

Tiny
KIKINORCASS
  • MEMBER
  • 2000 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 74,000 MILES
Hello, I have a 2000 chevy blazer and when I am sitting at a stop light and start moving slowly my rpms drop and my oil pressure gauge wobbles I am getting an error code of p1187 on the engine codes list. If I start fast it doesnt do it any ideas what can be wrong?
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Thursday, February 28th, 2008 AT 11:06 PM

1 Reply

Tiny
PEAR69
  • MECHANIC
  • 1,482 POSTS
Well, a p1187 code can mean two different things. Is your engine diesel or gas powered?
This code in a diesel is a low voltage reading on the EOT (Engine Oil Temp.) Sensor.
This code in a gas engine is a shorting or a low voltage signal in the bank two oxygen sensor. In this case check for any burnt or worn out wires for that o2 sensor.

BTW--make sure it is a P1187 and not a p1189.
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Friday, February 29th, 2008 AT 3:24 AM

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