Question about 2002 Buick LeSabre

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Trouble codes- What to do with them?

When I am driving sometimes my car spits back and forth were I think it may stall. So I went to checkers to get a diagnostic test and I got codes P0102, P0128, P0440 and P0716. I'm not sure what they are or if this is a common problem in Buicks. I have 219,000 miles on this puppy!! (most of them highway miles.)
I would like to know where to start with these problems?

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P0102 - Mass Air Flow (MAF) Sensor Circuit Low Frequency, clean inside the of MAF sensor with spray brake clean, if code returns replace the Mass Airflow sensor (MAF)
P0440 - Evaporative Emission (EVAP) System,
poss loose or leaking gas cap
P0128 - Coolant Thermostat Below Thermostat Regulating Temperature,
replace the thermostat, engine running cold
P0716 - Input Speed Sensor Circuit Intermittent, this is a problem with the VSS, vehicle speed sensor, replace it.
Clear all the codes after above repairs and drive a few days, then retest system for codes.

Posted on Sep 23, 2008

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