ok i installed a cold air intake on my friends srt4.. everything is perfect looks great so we go out for a ride and does great then later on he tells me he hears a noise where the filter is bottem left on his bumper and its when he is down shifting or something i told him its prob just back pressure or something but on his turbo psi gauge its only running up to 10 psi when it shoudl be pushing 14 .. did we do soemthing wrong we took it out did it twice and everything was tight no leakes that we could see? coudl it be a factory defect but i duuno how.. how could i have scrwed up his cold air intake?
help please!
srt_4_88
01-20-2005, 04:45 PM
try sending it back saying it was falty and see if that works unless its over 30days or 90days what ever manufactiur says...
zEus
01-20-2005, 05:05 PM
a cold air intake wont even pick up that much horsepower in a forced induction car.... unless you knocked some charge piping loose somewhere i have no clue why you would be loosing boost as the cai wouldnt add anything but the noise of the turbo spinning being more pronounced
newblusrt
03-18-2005, 01:11 PM
there shouldn't be any boost loss from installing a CAI unless the elbow isn't fastened to the turbo as tight as it should. Check that and reset the PCM.(disconnect the battery)
TEKRODRIGO
03-24-2005, 12:12 AM
Hey check it out I got a 04 srt-4 and i took the air box completely out. As soon as I did my boost lowered to 10 just like yours. I am positive that the problem is that there is a pressure sensor that senses the pressure in the intake and because the pressure reading is not what the manufactures wanted it drops boost to save the engine. I know for a fact it deals with the intake preasure because when my intake filter falls off my boost pressure does not go above 5. I am trying desperatly to find that vacume hose and make it think what it wants.
More advice, On ebay right now is a standard manual boost controller. I have just bought it and it will be here in two more days. Now if this works right I will be telling the wastegate the pressure that I want it to know. That means a higher and a steadier boost. The best part is that it only costs 35$.
newblusrt
03-24-2005, 09:03 AM
Is your car stage 1? Do you have an adjustable wastegate? If you have neither of these you will throw an OVERBOOST CODE
PSI Chick
04-13-2005, 02:11 PM
even with a wga it will throw an overboost code. you need a stage ecu to fix that.
whenever installing anything new on the car, always reset the ecu afterwards, and again in a few hundred miles. the ecu's on these cars are active learning, and as such they need time to adjust to the new modification. weather also plays a role in this, warmer weather will see higher boost levels. if there has been a change in your weather recently this could also be the cause. but definetly reset the ecu.
