So yesterday I put up a post about losing boost as speeds were increased. In fact, it wouldn't let me even go past 2 lbs. Sounds like a cracked charge pipe or intercooler huh? No. I checked today and everything was fine (except my missing fog light :thumbs down. So I took my Trifecta cable and ran to see what my check engine light was trying to tell me (because it stays on due to no cat anyway).

Come to find out I have 5 codes which are:

1). P0420 - This is for the no cat issue blah blah okay cool NEXT

I NEED SUGGESTIONS ON HOW TO TAKE CARE OF THE NEXT 4...
2.) P0101 - MAF issue...okay NOW WHAT?
3.) P0300 - Multiple cylinder mis fire...which leads to my next two codes...
4.) P0301 - Cylinder 1 mis fire
5.) P0303 - Cylinder 3 mis fire


I'd really appreciate all the advice on how to fix these issues. It makes sense now why I was losing boost. I'm figuring the P0101 MAF issue was making the ECM "learn down". As far as fixing that...suggestions? And how to fix cylinder misfires?

Thank you.

 

The bottom three are directly related to the P0101. Unless you misfired cause you suck at NLS... If you werent boosting, you will most likely fix all of the codes with just taking care of the P0101.

As for the MAF... I can guess its a voltage issue, or you have oil in it from your air filter, or oil from the engine. Take it out, check it and clean it. Past that... hopefully someone else has some more insight.

 

I heard buying the dejon pipe with maf re locate fixes it? and tune?

 

Check and clean the MAF for starters. How long has it been since you changed or checked your plugs? Also will be helpful to know what mods are on your car?

 

I have 54K miles apps and have never cleaned plugs lol I have upper pipe intercooler and catless dp

 

I would start with cleaning the MAF and changing your plugs. Those would be my first two things to try without seeing or driving the car.