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Discussion Starter #1
hie verybody again, my neihgbor has a tahoe 1997 and he had a trouble with truck. He received a code 1187 or 187 (meybe) in a computer scan. And in my town nobody knows what the code means and what he must to check/repair or change. Help us.
Another question: how many money are paying for a galon super gasoline?

we are paying here about 4 US$ per galon.

Bye and thanks
 

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Code 1187 is either "Engine Oil Temperature Sensor Circuit Voltage Low" or "Engine Oil Pressure Sensor Circuit Voltage Low". I don't think the 97 Tahoe had a oil temp sensor, so it is probably the oil pressure sensor. Does your gauge show low?

I paid $3.03 this morning for mid-grade.

Where are you located?
 

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We have 87 to 93 octane here. Mid grade is around 90. Wish we had some 95.

Cableguy, I show the code that you described to be P1161, not P1187.
 

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Discussion Starter #7
97 octane here

We have a 93 to 97 unleaded.
for my chevy silverado 5.7 vortec a 97 octane is a great feed, it clean injectors and it`s hear really good inside engine
 
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