miss firing engine light stays on
10

Asked by GuruXL6KM Oct 25, 2018 at 04:22 PM about the 2009 Lexus RX 350 AWD

Question type: Maintenance & Repair

Lexus 2009 miss firing so I had all sparks plugs and cylinders had tune done did not fix problem. Check engine light stays on and while driving at any point light will start flashing  I have to put car in neutral  and turn it off and restart it.  but it will do it again through out my whole trip. car also makes a noise that sounds likes it needs a new belt but I'm this car has a chain I don't.  

4 Answers
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beatupchevy answered 6 years ago

you should scan for codes and get the definitions , are the injectors firing normal ?

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10

GuruXL6KM answered 6 years ago

scan for code done it reads cylinders are still misfiring.

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Guru95J8NB answered 3 years ago

check your power to your injectors and coils make sure it is getting accurate power just had one in my shop that was doing the same thing and the lady had everything changed but still countinued to miss fire come to find out she had a short in her wire harness that was causing improper feed power which waqs causing hers to misfire, her check engine light would flash as well but fixing the harness fixed all of the problems she was having

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