galion
Thursday 18th May 2006, 03:31
Good day VPCUK
I have some strange boost issues in my stock S70R
Sometimes boost reaches a very scary 18psi, wich I think is wrong, but most of the times it hits 12psi at the first WOT and inmediately fades to a constant 7psi for the rest of the day, no matter RPMs
I thought I had a bad BCS or Wastegate actuator , did some searching and found the following statement at another forum:
"A bad Boost Control Selenoid will not boost normally; run a regular vacuum/boost line right from the vacuum tree right to the wastegate, cap the hose leaving the BCS to wastegate, if the boost is the same, then your BCS is shot, if the boost is different, then something else is wrong"
After doing this I had the same boost numbers, just a constant 7psi
No overboosting issues at all.
Now what do you think?
BCS is shot? bad wastegate actuator?
PS: all hoses are new
I have some strange boost issues in my stock S70R
Sometimes boost reaches a very scary 18psi, wich I think is wrong, but most of the times it hits 12psi at the first WOT and inmediately fades to a constant 7psi for the rest of the day, no matter RPMs
I thought I had a bad BCS or Wastegate actuator , did some searching and found the following statement at another forum:
"A bad Boost Control Selenoid will not boost normally; run a regular vacuum/boost line right from the vacuum tree right to the wastegate, cap the hose leaving the BCS to wastegate, if the boost is the same, then your BCS is shot, if the boost is different, then something else is wrong"
After doing this I had the same boost numbers, just a constant 7psi
No overboosting issues at all.
Now what do you think?
BCS is shot? bad wastegate actuator?
PS: all hoses are new