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Wiring, Electrical & Installation
Interference problems on Full custom ICE. None of the solutions works.
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<blockquote data-quote="Seabasskitten" data-source="post: 8836224" data-attributes="member: 687957"><p>*also* i had some time today to run some tests.</p><p></p><p>i unplugged the ECU relay. and the gas pedal communication noise is now gone. a slight hiss remains tho. this is with radio off.</p><p></p><p>it is a fully digital gas pedal though. so that likely goes trough the ECU.</p><p></p><p>unplugging the fuel pump relay. no change to the noise.</p><p></p><p>the issue is still present when i connect battery- to engine block and or a ground on the ECU.</p><p></p><p>battery- to amplifier- no change.</p><p></p><p>HeadUnit chassis to amplifier- no change.</p><p></p><p>using a test harness. headunit+ to battery+ headunit- to amplifier- no change.</p><p></p><p></p><p>ground connections are all good. and all devices are getting stable voltage input.</p><p></p><p>my amplifiers are wired in to turn on with ignition. the interference does not change if i use radio remote instead.</p></blockquote><p></p>
[QUOTE="Seabasskitten, post: 8836224, member: 687957"] *also* i had some time today to run some tests. i unplugged the ECU relay. and the gas pedal communication noise is now gone. a slight hiss remains tho. this is with radio off. it is a fully digital gas pedal though. so that likely goes trough the ECU. unplugging the fuel pump relay. no change to the noise. the issue is still present when i connect battery- to engine block and or a ground on the ECU. battery- to amplifier- no change. HeadUnit chassis to amplifier- no change. using a test harness. headunit+ to battery+ headunit- to amplifier- no change. ground connections are all good. and all devices are getting stable voltage input. my amplifiers are wired in to turn on with ignition. the interference does not change if i use radio remote instead. [/QUOTE]
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Interference problems on Full custom ICE. None of the solutions works.
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