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'89 240sx, Matrix 3.5 alarm/remote start

Home / the12volt's Install Bay / Car Security and Convenience / '89 240sx, Matrix 3.5 alarm/remote start (Topic Closed Topic Closed)
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00neon 
Copper - Posts: 61
Copper spacespace
Joined: February 20, 2004
Location: United States
Posted: September 01, 2004 at 10:46 PM / IP Logged  
im going to be insatlling a avital 3300 on my 2000 neon.  i have been trying to place the antenna.  i dont want to stick it to the window.  but there is a small gap between the headliner and the roof, right next to the window, do you think this will work?  or will it be obsturcted?  also this will sound like a complete newbie question, but is there anyway to wire the antenna so it interfaces with the factory antenna??  that would be GREAT range
1 JL 12 w3 D4
1 MTX 421 D Monoblock
1 Sony Xplod 75x4
Front: Alpine SPX-177A
Rear: JL audio VR690-CXI
krayzie2k3 
Copper - Posts: 47
Copper spacespace
Joined: January 14, 2004
Location: United States
Posted: September 02, 2004 at 1:43 PM / IP Logged  

i dont think thatll work becuase they work on different frequencies...

00neon wrote:
im going to be insatlling a avital 3300 on my 2000 neon.  i have been trying to place the antenna.  i dont want to stick it to the window.  but there is a small gap between the headliner and the roof, right next to the window, do you think this will work?  or will it be obsturcted?  also this will sound like a complete newbie question, but is there anyway to wire the antenna so it interfaces with the factory antenna??  that would be GREAT range

mrbean01 
Member - Posts: 28
Member spacespace
Joined: July 30, 2004
Location: United States
Posted: September 07, 2004 at 4:17 AM / IP Logged  

Hey all,

Just fiunished installing my Matrix 3.5 into my '89 240sx, everything works fine, but my tach is all whacked out.  The needle twitches wildly during deceleration when my foot is off the gas, and during hard acceleration.  I've done the tach learning procedure as described by the manual, and it's not as bad as it was, but it definitely doesn't behave like it used to.  The connection between the tach wire and the alarm is clean, no fraying or exposed threads. 

Anyone else have this problem with this particular alarm?  What could be causing this?  And most importantly, what should I do?

mrbean01 
Member - Posts: 28
Member spacespace
Joined: July 30, 2004
Location: United States
Posted: September 07, 2004 at 4:24 AM / IP Logged  
Well, it's now mounted right behind my rear view mirror, about as high up in the car as I could get it, and I'm still not too impressed with the range.  For something that boasts reception up to a 1/4 mile, the best I can get is about 100 feet with clear line of sight.  If I'm indoors, or around a corner, then it's about 40 feet.  Is there any way to boost the range so that it approaches the range advertised?
tbirdman74 
Copper - Posts: 164
Copper spacespace
Joined: August 22, 2003
Location: United States
Posted: September 07, 2004 at 8:18 AM / IP Logged  
I would suggest onhooking the tach wire from alarm, and see if the problem is still there.  That way you can at least tell if it is the alarm, or the car.  Good luck.
If it don't fit, Force it.
If it breaks, You needed a new one anyway!
Teken 
Gold - Posts: 1,492
Gold spacespace
Joined: August 04, 2002
Location: Aruba
Posted: September 07, 2004 at 9:07 AM / IP Logged  
If its vehicle related only. Then it could be a sign of the alternator, coil, ignitor, distributor, or internal rotor.
When they checked your electrical system. How did they varify its condition?
Regards
EVIL Teken . . .
mrbean01 
Member - Posts: 28
Member spacespace
Joined: July 30, 2004
Location: United States
Posted: September 07, 2004 at 12:56 PM / IP Logged  
It's alarm related.  I had the wire tapped for a few days before hooking it up to the alarm, and it was fine.  As soon as I plugged it into the alarm brain, it went weird...
kgerry 
Platinum - Posts: 3,455
Platinum spaceThis member consistently provides reliable informationspace
Joined: February 07, 2004
Location: Saskatchewan, Canada
Posted: September 07, 2004 at 5:32 PM / IP Logged  

did you verify your tach wire with a meter?

and no, you cant combine your acc and ign wires together....

Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
mrbean01 
Member - Posts: 28
Member spacespace
Joined: July 30, 2004
Location: United States
Posted: September 07, 2004 at 8:53 PM / IP Logged  
Yup, verified the tach wire with a multimeter.  I'm sure its the right one.
mrbean01 
Member - Posts: 28
Member spacespace
Joined: July 30, 2004
Location: United States
Posted: September 07, 2004 at 8:54 PM / IP Logged  
wow... presto combino!  I didn't know I posted so much... :)
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