Excess electromagnetic interference?
It seems my car emits a lot of electromagnetic interference. My radio sometimes has an RPM-based intereference through the antenna. My DIYPNP kept disconnecting randomly and during WOT so I replaced the USB cord with a serial extension cable which solved that. I also have a lot of noise in my CLT signal (the sensor is right next to the coils) and AFR (the signal cable goes above the transmission tunnel, so it's acting like an antenna) but not much noise in the MAT signal (which stays away from the coils).
Is this common? I'm thinking maybe the coils might be arcing to something but I don't want to replace it unless I'm sure that's the issue (I already replaced the spark plug wires for an unrelated reason) Is there any good way to shield the coils to send any EMI to a ground somewhere or is it likely something wrong with the coils? |
wat.
I mean, yes, it's a very common issue, just wear a tinfoil hat when you drive. |
Originally Posted by soviet
(Post 940012)
wat.
I mean, yes, it's a very common issue, just wear a tinfoil hat when you drive. |
What plug wires?
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resistor-less plugs?
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I've had this issue on two different cars - both had low impedance injectors, and the DIYPNP is not compatible with these anyway.
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Originally Posted by midpack
(Post 940092)
resistor-less plugs?
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In general you don't want signal wires running near the plug wires or coils.
Especially signals that move quickly (e.g. TPS, as opposed to CLT) |
Originally Posted by JasonC SBB
(Post 940341)
In general you don't want signal wires running near the plug wires or coils.
Especially signals that move quickly (e.g. TPS, as opposed to CLT) |
Originally Posted by event
(Post 940127)
I'm running RX-8 injectors and Bosch Platinum Spark Plugs. I don't know how to visually verify that these have resistors in them so I searched them and found a resistance of 5kohm. I'm assuming these classify as resistor plugs. I had never even heard of resistor-less plugs until trying to search out my problem.
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