Bad Boost problem

[4g63monster]

my car boost fine until i get to 4 grand then it jerks n bogs crazy but once i pass 4 grand it boost fine i checked the plug and wires they are fine and just replaced them a few months ago jus started doin it a week ago

 

[crusher966]

Is it manual or automatic? How many miles are on the car?

 

[dented_coffee]

you should run a boost leak test. i would also pull the ecu and inspect it for any damage as well.

 

[4g63monster]

its a manual and my ecu is good should i reset it or boost leak

 

[crusher966]

Boost leak or bad vacum lines. Or this could be the way you et your boost controler. If you connected it you your BOV this would also explain the problem. Make sure you have it hooked up properly then check the vacum lines going to the wastegate actuator and the air intake.

 

[dented_coffee]

you can make a boost leak tester for less that 10 dollars at your local hardware store. you could reset the ecu. take both positive and negative wire off of the battery and hold them together for about 10 seconds. but reseting the ecu is not gonna solve your problem. if you are using the stock smic make shure the outlet neck isnt corroded and falling apart (common stock intercooler problem).

 

[4g63monster]

problem fixed i reseted the ecu n it booost fines

 

[4g63monster]

it turns out to be my maf actin up ima get a gm maf n put it in