Amp won't turn on with engine

[XVar]

Got a weird problem with my Vibe Blackbox 3 amp, it turns on fine with the ignition on but won't turn on with the engine running. The remote terminal to ground reads at 12v with the ignition on and with the engine started, and the live to ground reads 12v with the ignition on and 14v with the engine started.

Also, the remote to live reads at 2-3v, is this normal?

I've tried with no speakers connected, no RCAs connected, everything connected, but it's always the same, works unless you start the engine.

Any ideas?

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[Blove1991 10+ year member]

Where is your remote wire run too? HU?

Find a fuse that only has power when the ignition is on/engine is running and run your remote wire into that and see if that amp will power up

 

[blackbonnie 5,000+ posts]

x2, and welcome to the site

 

[ultimate157 5,000+ posts]

First, disconnect the remote wire and start the engine. Jump from the 12v+ on the amp to the remote wire terminal. See if it turns on.

 

[XVar]

Turns on with the remote terminal shorted to the live terminal. Must be something wrong with the remote lead or remote output on the HU. Weird that it's only when the engine's running that it doesn't work though.