Discrepancy between stock and AEM boost gauges
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Discrepancy between stock and AEM boost gauges
Alright, so I installed my AEM digital boost gauge yesterday, no problem (Tee'd into the same line as the stock MR gauge). However, there is a difference between the two on full boost, 4th gear. The AEM seems to peak at 21-22 psi, yet the stock MR is around 1.4 (which is assumed to be ~20 psi). Is the stock gauge that inaccurate? I had always heard it was pretty accurate. Or is the AEM gauge inaccurate? I checked all the connections on the vacuum line and checked for kinks and it seems to be all good. Oh and also, my vacuum reads 16 in/hg at idle. Sometimes it will jump back and forth from 16 to 18 pretty rapidly (on the AEM gauge). Is that a normal number for vacuum?
All my IX has is a Megan TBE + Hallman Pro (set at stock of course).
All my IX has is a Megan TBE + Hallman Pro (set at stock of course).
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Another thing too. When I hit peak boost on the AEM gauge, it flucuates rapidly from like 20-22. It never really "stays" at a number. I was thinking...could I have a leak somewhere in some other vacuum lines?