Bringing the car out for the summer I was constantly hitting 24psi on pump gas. Not good.


Well figured out since I removed my apexi avcr that I can maintain 5psi of boost with 7psi spike on the wastegate spring. So my 24psi runs were because the apexi avcr failed. Normally with the avcr selected to off it should hold 12vdc to the solenoid to allow it to run open to wastegate. This is not the case. I removed the solenoid and applied direct 12vdc to the solenoid. It operated perfectly. So I ripped apart my interior and measured the continuity of the wiring to the solenoid. It rang out fine. For a second I thought that installing the wideband along the same wires as the haltech/avcr that I may have damaged a wire. Not the case. (It worked last year and the boost lines are correctly installed)

Anybody have experience in this type of troubleshooting? If it is bad then this is one expensive boost gauge!! I might be able to use the solenoid throught the haltech as a boost controller.

 

I had a wiring problem on my old car with the AVCR, I just turned the ignition on so the AVCR was on and registers amb pressure without the engine running (depends how you have it wired up) Then take the pipe from the inlet manifold that runs to the AVCR MAP sensor and put pressure through it, if you have your boost setting and duty adjusted so a hand pump or syringe can fool the VACR into thinking its overboosting as you apply pressure to the line, the solenoid for the AVCR will start clicking like mad.
Have the peak hold on to see if your hitting the boost setting on your AVCR.

Worth ago.

 

Or, set the AVC-r for .70kg/cm² (9.9psi), and/or monitor your boost at idle. Watch your boost gauge and set your AVC-r to peak hold (like Bucky said) and make sure the AVC-R matches what your boost gauge read. Obviously if your boost gauge jumps up to 15psi and the avc-r only read 10psi, something is wrong. I have my AVC-R pressure pickup and my boost gauge pickup right next to each other so they get the same amount of pressure.

-Darren-