View Full Version : New fuel pressure regulator, came with new boost problems.

10-21-2009, 05:14 AM
I put a crane cams' fuel pressure regulator on my 86 svo, since then I've had boost problems. Most of the time it only boosts 9-10 psi. Once I get into higher rpms it spikes to around 19 psi then goes down to it's normal 15 psi. I checked the vac lines, and found one came loose from the stock boost controller to the part between the vam, and the turbo. I put it back on, and I still have the same problem. I adjusted the fuel pressure to 42-43 psi at idle. Any idea what the issues could be? any help would be greatly appreciated!

10-21-2009, 05:28 AM
I also opened up the boost controller, and cleaned it up. Everything seems to be normal inside.

10-21-2009, 09:26 AM
put back the old fuel regulator and see what happens