Andross

hey so my problem at the moment. is when i get up to about 5500 rpm to 6500 rpm my car will randomly lose power for a second. like if it was missing. rpms and everything drops and kicks back in. anyone have this happen to them? or wat are some possibilities this could be. definitely isnt a boost leak. and the compression is fine!

Mahjik

iTrader: (1)

What mods are on the car? When was the last time you've done routine maintenance (spark plugs, fuel filter, etc)? What's your boost levels during the run?

DaveW

As Mahjik said, what modifications do you have, and what boost levels are you getting? This sounds like fuel cut. Intake and/or exhaust flow improvements can cause the boost to get too high and trigger fuel cut with the stock ECU. The chart below shows the boost levels that will cause fuel cut.

Andross

i've just did the plugs and wires, havent gotten to the fuel filter yet! but i just have a catback exhaust and cold air intake, and i hit about12-13 psi at points. and yeah stock ecu. so ill get on that fuel filter as well. trying to save up for a pfc at the same time lol

apexhittinbull

iTrader: (21)

if you can't rev, and you'v just done plugs and wire job...

likely the plugs and wire jobs at fault. my guess.

cpnneeda

iTrader: (1)

Yeah check and make sure you wired the plug wires correctly. Which plugs did you put in? 7's & 9's? Check the wires, and of course a fuel filter change isn't a bad idea as well, though looking at the latest mod is always the best place to start. Good Luck.

Andross

it did it before i swapped them out. i thought it was just an occasional miss. but its not. plugs and wires are fine. all are getting spark. ill replace my fuel filter and planning on buying a pfc soon.

oo7arkman

iTrader: (2)

You stated your are still on the stock ecu, I would HIGHLY recommend you reduse your boost back down to 10psi. 12-13 on the stock ecu is asking for trouble. And it sounds like fuel cut to me as well. The stock ecu is trying to save the motor by cutting fuel b/c it does not know how to supply more for the boost levels you are running. But it cannot save that motor forever. Reduce the boost until you get your pfc and get that tuned for the 12-13psi or it will do you no good to purchase and install it.

Andross

so how do u reduce it? i dont have the stock parts to put back on the car.

Andross

just ordered a booster controller. should have it cased once i put it in. thanks a bunch!