03 x50 only pulls to .4 bar?
#1
03 x50 only pulls to .4 bar?
A friend of mine has a x50 with 24k miles and it only pulls to .4 bar in 3rd or 4th it runs great and no codes but will not go past .4. He has tried disconnecting the battery, should it just have a boost leak test or would that be DV's?
#6
.4 is typically referred to as "limp mode" which is what the car goes into when there's a leak...It was designed into the computer to protect the engine and to alert the driver that something is wrong. Blowing a hose off the intercooler will cause this...F hose leaks or poor/loose hose fittings will cause it. Did your friend do anything to the car recently....like, install diverter valves etc? If so, check the recent work, If not, then look for the leaks.
BTW....if it turns out to be a hose to the intercooler or boost hose....don't be afraid to spray a little WD40 on the connection and wrestle the hose back into the connection till you hear it click. I spent hours taking everything apart and messing with the wire clip...then took it to an indy who simply grabbed the hose intercooler hose, jammed it in and yanked on it like he was pulling a bad molar...and I heard the wire clip "click" as the hose snapped into place. He did in one minute what I had taken hours to fiddle with because I was using a white glove approach.
BTW....if it turns out to be a hose to the intercooler or boost hose....don't be afraid to spray a little WD40 on the connection and wrestle the hose back into the connection till you hear it click. I spent hours taking everything apart and messing with the wire clip...then took it to an indy who simply grabbed the hose intercooler hose, jammed it in and yanked on it like he was pulling a bad molar...and I heard the wire clip "click" as the hose snapped into place. He did in one minute what I had taken hours to fiddle with because I was using a white glove approach.
Last edited by Chuck Jones; 07-02-2009 at 11:01 AM.
#7
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#8
Thanks, he dropped the car by so we'll check for loose hoses and then do a pressure test. I was wondering why it just stayed at .4 but that answered my question that a boost leak can send it to limp mode. Thanks again
#13
Easy, just take of the intake pipe going into the compressor housing inlet and look at the wheel for damage. You will also want to check the shaft play by holding the center of the wheel and moving it up and down.