E46Fanatics - View Single Post - Need help trouble shooting AEM boost gauge
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Old 07-17-2010, 02:02 PM   #1
Registered User
Join Date: Aug 2008
Location: Bay Area
Posts: 194
My Ride: AA HKS Boosted M3
Need help trouble shooting AEM boost gauge

Finally installed my AEM digital gauges. AFR gauge is reading fine but my boost gauge doesn't seem to be registering boost. When I turn the car on both gauges go through it's cycles. The boost gauge starts to go left of the zero slowly at idle and stays at around -8 to -10. When I start driving, the gauge does not move toward the right into boost and just stays at -8 or -10. At full revs while driving to 7-8k rpms, gauge stays at -8 to -10.

I double checked all the connections. I have both gauges grounded to the cig lighter and both tapped into the radio power line (fuse 7) in the glove box. The boost sensor is tapped into my vacuum line in between the blow off valves. I even tried moving the sensor tap closer to the fuel rail and still the same results. I made sure the sensor wire was not flat or pinched off anywhere from the steering column to the vac line. I have both AFR and boost sensor wires going through the DME hole on the drivers side. I pulled out all the covers and carpeting underneath the steering column just to make sure it was a clean read. I un-plugged the wire behind the gauge and re-plugged and no luck.

I'm not sure what else to do...any of you FI gauge experts have any suggestions? Could I have a bad gauge? Is there another way to reset it somehow?
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///M3AN ONE is offline   Reply With Quote
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