Quote:
Originally Posted by Irace86.2.0
So everything was working fine at one point. I disconnected the Haltech and nothing changes, as the Haltech is only for the engine. I’ve been working on the car often, so I couldn’t really say, but it happened after I installed an oil pressure sensor. All of the wires pin into the Haltech and not anything else. It could just be coincidence that the symptoms started near this time, but I ran a wire parallel to the power wire of the OEM Audio system that runs along the firewall. It went into the passenger side engine harness grommet into the cabin and to the Haltech. Nothing too odd or anything.
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Let's try to narrow it down a bit more:
1) Does the noise appear when the key switch is in ACC position?
2) Does the noise appear when the key switch is in the ON position, with the engine NOT running?
3) Does the noise appear when the key switch is in the ON position, while the engine IS running?