Quote:
Originally Posted by FR-S2GT86
You're in that realm of major modifications to the car that most of us have not stepped into, but we'll try to help as best we can:
1) I believe you replaced your ECU with an aftermarket unit, correct? Where did that get mounted, and did you use shielded cables?
2) Is it possible that ignition noise could be the cause?
3) Any new circuits run from the front of the car along the driver's side in parallel with the signal wires from the head unit to the stock amplifier?
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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.