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engine noise in a 90 niss max


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dj1266 
Member - Posts: 1
Member spacespace
Joined: December 10, 2009
Location: California, United States
Posted: December 10, 2009 at 1:55 AM / IP Logged  

Ok I have changed the ground it is no longer hooked to factory harness; I unplugged the ant from the radio. no luck. Checked and re grounded the amps. 2 old school ppi a404s. I even took the rca’s and ran them outside the car im still getting engine noise and yes it goes up and down with rpm’s and I did check the grd on the alternator good shape.

My next step is unhooking power from factory harness and going to steering column harness for 12v switch and 12v mem. If this does not work, I don’t know where to go next or what could be causing it. Has anyone ran across this one with this type of car.

Sys installed in car is as follows.

Pioneer deh 410ub

Pioneer deq9200

2 ppi art a404’s

1 mtx 551244

1 pair crystal 61/2 comp rear

1 pair crystal 51/4 comp frt

i am an idiot 
Platinum - Posts: 13,666
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: December 10, 2009 at 4:43 AM / IP Logged  
tommy... 
Gold - Posts: 1,901
Gold spacespace
Joined: December 10, 2004
Location: United States
Posted: December 10, 2009 at 7:49 AM / IP Logged  
Does it say Pioneer in there somewhere...?
M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
i am an idiot 
Platinum - Posts: 13,666
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: December 10, 2009 at 9:00 AM / IP Logged  
I hope it does, if not I might look like an idiot. 

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