i need help to find out whats going on with car it gets boost but with lack of power i dont know if running leaded race fuel had an ill effect,
could it be my injectors got somewhat clogged? i replace o2 sensor which i was getting a cel for that now is gone, but car its slower it gets up
in boost slower and is not as fast as before, i have a not cat needswings dp so it wont be the cat i am thinking mybe the injectors but dont know
or a boost leak ? but not sure , anyone care to help me out ??


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not sure how you expect us to help here. just saying "my car is slower" doesn't give us a whole lot to work with. more details, mod list, and the exact differences that you're seeing would help.

 

boost levels?? spiking and holding?how are your spark plugs and wires?

 

[50 trim w upgraded agp injectors and fuel system, catless cutout dp, upgraded fmic, etc]the car runs fine till it goes into higher boost and when it gets there it doesnt pull as hard as it used to, all this happened shortly after putting leaded race fuel, replaced downstream o2 sensor got rid of ck engine light, car idles good, runs good in low boostbut when it gets to 19psi it doesnt pull hard like it should everything was fine before i put leaded fuel, theres no CEL codes


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wow i just took it for a test drive and it overheated never that had happened bofore and it was only seen about 10 psi of boost , it sucks any help guys


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Could it be heat soak that is robbing you of your power? i dunno, try some water wetter?

 

i know every car is diff but what is a good approx fpr pressure psi at , i was thinkin that something in my fuel system is clogged not necessarily injectors


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help anyone?? , just got back from driving the car its so slow only gets up to 10psi on the higher rpm's, doesn't pull like it should and the bov has like a delay and i cant barely hear the bov , its not heating up anymore..could be the ecu acting up or the turbo on its last leg??


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i am leaning towards the fact that i think is a boost leak...anyone??


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i doubt that it has anything to do with the leaded gas. i've been running c16 for the last two seasons with no problems, haven't even had to replace my o2 sensors yet.

it's hard to say what the problem is really. i would start with the basics though and work from there. do a boost leak test, change your plugs and wires, and check your wga