Trailblazer problem P0300 code

The trailblazer is 6 cyl u 8 cyl good The case is the same if with the washing of injectors the problem was not corrected the safest thing is that it is some of a coil being the case of the 6 cyl or a spark plug cable being the case of the 8 cyl I hope and this serves you something

Ok and where is that sensor located? And what do you have to do?

It only gives you p0300 or some? Look in the data line of your scanner the fuel trim. Disconnect the MAF sensor and see if there is a change, clean this sensor with great care and brake cleaner. Check the engine void and look for some broken hose where the engine not registered by the computer sucks. Lomism for the boards of the multiple of admission. Czech that do not have the fugitors, you can do this by measuring the gasoline pressure observing after turning off the engine for a quick fall of the pressure or you can remove the rail (the rails) of fuel. Verify the coils. Greetings

Surely the spark plug does not receive all its strength, change the box where the high tension cables come to the spark plugs.

Friend here I leave the solution that I found to that problem in my workshop that passes the plastic tube that is between the air filter and the acceleration chin there is a thermal reader that when this type of fault is cause And delay if need) ...... For them it gives you explanations in cylinders if I have to explode at that time I hope to be helped ... any other consultation ..