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Trailblazer SS 2008 143k miles with 4LE65 Performance transmission, Belltech Airride and E Fan.
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7 Posts
Discussion Starter · #1 ·
Hey Guys,

I still have error p0300
I cleaning the injectors and the O2 sensors.
The plugs are 6 months old...
I noticed that this does not occur when driving on the motorway.

When I often stand at traffic lights or in a traffic jam the engine control light comes on.

When idling, I really notice how the engine is sometimes running restlessly and shaking.

do you have an idea what could be the cause?

thanks a lot and have a nice week!! :)
 

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2008 TrailblazerSS
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Have you tried cleaning the mass air flow sensor?


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Registered
Trailblazer SS 2008 143k miles with 4LE65 Performance transmission, Belltech Airride and E Fan.
Joined
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7 Posts
Discussion Starter · #3 ·
Have you tried cleaning the mass air flow sensor?


Sent from my iPhone using Tapatalk
No....I didn't think about that.
thanks for the advice.

will try it today!
 
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