Error code 00575 intake manifold pressure deviating

[Bahamacharger]

Hello All, My Old reliable A4 B5 Avant is having a hissy fit. NO boost like limp mode ? The only error is 00575, I have swapped the oil temp water temp all the filters and coolant and oil too. What is the error 00575 pointing too ? I says intake manifold pressure deviating, but not what is doing it. I have checked all the vacuum pipes and fittings and fond NO issues. Could it be one of the boost control solenoids ?. PLEASE help I am missing the Old Lady big time. Thanks Paul

[MFGF]

Hello All, My Old reliable A4 B5 Avant is having a hissy fit. NO boost like limp mode ? The only error is 00575, I have swapped the oil temp water temp all the filters and coolant and oil too. What is the error 00575 pointing too ? I says intake manifold pressure deviating, but not what is doing it. I have checked all the vacuum pipes and fittings and fond NO issues. Could it be one of the boost control solenoids ?. PLEASE help I am missing the Old Lady big time. Thanks Paul

Hi,

There are some ideas on the Ross Tech Wiki:

http://wiki.ross-tech.com/wiki/index.php/00575

Good luck!

MF.

[Rob69]

yes it could be the n75 solenoid, have you tried sucking on the turbo actuator diaphragm vacuum tube to see if diaphragm is split, could also be MAF sensor. A basic OBDII scanner will not give you much to go on unless you can trend live data etc.

[Bahamacharger]

I had a Pal call over last night with his Snap on reader from his Job. It came up as My MAF had flat lined. On live data it was not moving at all and the other points were all good to go. I have ordered a new MAF. Thanks Guys's.