1998 Chevrolet S-10 Pickup Logo
Posted on Jun 20, 2012
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My chevy blazer 2000 ha a p0101 code changed the mass air flow sensor still does not want to accelerate

It runs better with the mass air flow sensor unplugged when it is plugged in it would not accelerate sounds like it is choking

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ZJ Limited

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  • Chevrolet Master 17,989 Answers
  • Posted on Jun 20, 2012
ZJ Limited
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Hi there:
This code is set when the MAF (Mass Air Flow) meter is not sending the PCM the correct information. This can be due to a bad conection of the rubber intake hose between the MAF and the Throttle plate opening, a dirty air filter, a dirty mass air flow or a bad mass air flow.



Most programmer have you tie into the iat sensor in the mass air flow. this can cause the the iat sensor oto short out.


Hope helps.

4 Related Answers

Anonymous

  • 3640 Answers
  • Posted on Aug 22, 2010

SOURCE: have two codes on 1999 chevy blazer

p0404 is egr flow range, remove and clean egr passage way, it maybe built up with carbon, p0101 remove and clean mass air flow sensor. you can buy the cleaner at any auto parts store. but be carefull of the inside of sensor, follow directions on can. this should help a lot!!

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Anonymous

  • 67 Answers
  • Posted on Mar 12, 2010

SOURCE: service engine light on 2001 blazer

with the p0101 make sure you have a clean air filter. it can be bad spark plugs and or wires, or a leak in the air intake system

dennymulford

Dennis Mulford

  • 1055 Answers
  • Posted on Apr 16, 2009

SOURCE: I have a 2000 Chevy Blazer I have replaced

maf sensor, tps sensor,or timing gear

Anonymous

  • 77 Answers
  • Posted on Apr 13, 2011

SOURCE: 2002 chevy blazer 6 cyl, 4.3 engine, emissions

P0101 is the Mass Air Flow Sensor error,
http://www.obd-codes.com/p0101


P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature

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These show up on computer p0101 maf sensor p0128 thermostat p0155 02s heater circuit im not getting power i need to now all the problems & solutions i have 85700 miles 2002 chevy blazer is this...

Ok, it's not the transmission.
P0101 maf sensor ( mass air flow) sensor. Change the sensor, it is located in the air intake hose that runs from the air filter housing to the throttle plate/ throttle body. Disconnect the wire from it and loosen clamps ( if equipped) and pull hose from it.
P0128 thermostat is below temperature specs, change to a 190 or 195 degree thermostat. auto parts store should be able to tell you which one you need.
P0155 the heater circuit in the oxygen sensor is bad, need new one. That is on bank 2 sensor #1. If it is a V6, looking at the engine, it would be on passenger side, screwed into the exhaust pipe near the exhaust manfold.
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Service engine light on 2001 blazer

with the p0101 make sure you have a clean air filter. it can be bad spark plugs and or wires, or a leak in the air intake system
0helpful
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I have a 2000 Chevy Blazer I have replaced

maf sensor, tps sensor,or timing gear
1helpful
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Have two codes on 1999 chevy blazer

p0404 is egr flow range, remove and clean egr passage way, it maybe built up with carbon, p0101 remove and clean mass air flow sensor. you can buy the cleaner at any auto parts store. but be carefull of the inside of sensor, follow directions on can. this should help a lot!!
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