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Randall C
Randall C, ASE Master Tech
Category: Chevy
Satisfied Customers: 12826
Experience:  ASE Master, L1, 32 years, Diagnostic / Electrical Specialist
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Chevy s-10 trouble codes po 101, 128, 300.

Resolved Question:

chevy s-10 trouble codes po 101, 128, 300.
Submitted: 7 years ago.
Category: Chevy
Expert:  Randall C replied 7 years ago.
Hello, how does the vehicle run? lmk thanks
Customer: replied 7 years ago.
it seems to be runing fine
Expert:  Randall C replied 7 years ago.
Thanks. The 101 code is for a problem with the MAF or mass airflow sensor. The 128 code indicates a problem with the coolant tenp sensor. The code 300 is random cyinder misfire. A MAF or Coolant sensor can cause a random misfire. You could have set an intermittant code or problem. You need to take off the NEG battery cable and leave off for 60 seconds or more. This should clear the codes. Drive the vehicle if one or more return, you need to see which one and possibley replace that sensor as it continues to store a trouble code.
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