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Discussion Starter #1
Alright, I have checked all over, can't find anything that resembles the problem I'm having. I have a 91 NA stock except for a cold air, intake air sensor is disconnected.
So, when I let off the gas over 3000 rpm I get a weird electronic buzzing sound. goes away when the rpm drops below 3k. closest thing I can compare to the sound is the sound an electronic steering servo on an RC car makes.
The sound goes away when I touch the gas, dont have to even start accelerating as if there were some sort of switch there, and it only happens over 3k rpm and only when I'm off the gas.
 

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Hi,

Take a look at the exhaust pipe heat shields. They are known to rattle expecially at higher rpms.
 

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Discussion Starter #3
alright, I do know that the heat shield rattles just didn't think it was related.

I'll check into it, thanks
 
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