acmo
03-01-2014, 07:34 PM
Hi all
Firstly I do (unlike many people on some forums) know the difference between the N75 and the N249 valve.
I have an erratic boost after changing the bypass valve, the N75 seems to be working ok after changing it with another..but no difference.
I have done an output test with vag com on the N249...it clicks as it should but while blowing up the vac pipe from the bypass valve it doesn't seem like it's closing.
With the engine running the pipe then maintains a constant vacuum. ??
Getting really confused with all this, coupled with the posts that confuse the N249 with the N75. I understand the basics with the N75 and don't think this is the issue.....
Can anyone help?
Thanks
Firstly I do (unlike many people on some forums) know the difference between the N75 and the N249 valve.
I have an erratic boost after changing the bypass valve, the N75 seems to be working ok after changing it with another..but no difference.
I have done an output test with vag com on the N249...it clicks as it should but while blowing up the vac pipe from the bypass valve it doesn't seem like it's closing.
With the engine running the pipe then maintains a constant vacuum. ??
Getting really confused with all this, coupled with the posts that confuse the N249 with the N75. I understand the basics with the N75 and don't think this is the issue.....
Can anyone help?
Thanks