[335why]

Is anyone else running into any problems on the highway? I can't seem to cruise around 80 without the car boosting 1-3 pounds (according to boost on fuel)

Once I put the car into "cruise" however the car doesn't boost at all. Only occasionally when going up hills ect..

This normal ?


Mods now are DCI, Catless DP's, and jb4 (map 2)

[themyst]

The jb4/Procede reads preboost, which isn't necessarily accurate at low throttle. I used to have a mechanical boost gauge in my last n54 which reported vacuum at up to 3-4 psi on the in-dash piggy boost gauge.

Perfectly normal.

[Mike@N54Tuning.com]

Originally Posted by themyst

The jb4/Procede reads preboost, which isn't necessarily accurate at low throttle. I used to have a mechanical boost gauge in my last n54 which reported vacuum at up to 3-4 psi on the in-dash piggy boost gauge.

Perfectly normal.

+1

If you want to verify boost you can always do a catalog with the JB4 and/or get a dedicated boost gauge.

Mike