Question about 2006 Chevrolet Colorado

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Check engine light came on and a code of 101. i teied replaceinf the MAF but it made it worse. Do you know what is wrong.

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1 Answer

You need to study auto technology

Codes do not tell you what is wrong or what to replace.

You need a set of Factory Service Manuals and Emissions Diagnosis Manuals (Helm.com) if your going to work on todays vehicles, like your own,in your driveway. It can be done, but will require a lifetime of study to learn the technology. You also can spend hundreds of dollars on tools, just to get at one bolt that is hard to see or reach.

Replacing a MAF Sensor with the correct part does not make things worse, common sense.

The codes you get are the symptoms,not always the area of the problem. You need an understanding of the system your working on,and even then if you don't have a head for logic,you end up throwing parts and money at it.

Posted on Jul 31, 2010

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I don't have a listing for the c code but from the other 2 codes I would be checking around the maf/vaf sensors and the HO2S sensor (replace)
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Hello,
You may, or may not be aware of this, so let me mention it. Fault codes are not part specific, they just reduce the field for trouble shooting. Code 101 sounds like it may recognise a problem with the emission system. I would try the following;

1. Make sure you have a clean air filter. Engines need a proper fuel/air mix ratio, a dirty filter prevents the engine from getting the air it needs.

2. MAF, you already did the mass air flow sensor, but, make certain that all of the hoses and vacuum lines were properly reconnected.

3. Oxygen sensor. If this part is faulty, it will have a number of similar effects as the MAF. You do have 1 in front, ( before the catalytic converter ), and 1 in the back, ( behind the catalytic converter)
I would have both of these checked.

I hope this helps you.

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