i have a se 03 and i want to install my mini tach, i know with a sxt cluster it has a tach and when you install it on my car the tach, works. the question is which wires do i need to splice in behind the cluster to make my tach work.

 

I was wonering the same thing. People are telling me to by a tach adapter. But the other model neons come with it int he cluster so there has to be a signal wire sumwhere. The closest i got was hooking it up to the negitive wire comming out of the ignition but when i did that it only read half the rpms. Say my car was doing 4k rpms the tach only read 2k. So i to am looking for an answer. I have a 2002.

 

I have an SE with out a tach either. I also thought about doing what you want to do. But I just bought a farely new SXT tach off ebay for $45 shipped. Perfect condition. You could just do what I did. It will be way cheaper for sure. $14 for the SRT-4 gauge bezel, $70 for a tach, $? for the adapter?

 

ok this is what i have tried so far. i took the cluster out and there is a rectangle that the cluster plugs into in the dash, well i took the tach signal wire from the gauge and started pluging it in each hole. i found one slot that made the tach needle move but when i reved the car the needle stayed in the same spot. so i think there is 2 wires that make the tach work on a stock tach cluster, but which 2 wires? unless does anyone have wire diagram for the wire plug in back?

 

I am not sure of the wire on the 2nd gen, but I know on my 1st gen, I hooked the pick-up wire to the coil pack and got half a signal, when I hooked it to the wire from the PCM,I got a full signal and the tach worked fine.

 

ok i have a 2001 neon lx with no tach so when i went to go pull the dash apart i found a wire on top of the top under the cover i think it may be a tach wirre im istalling a 2 1/16 gauge in my pillar all cuztom molded i have pics if any one wants to see i dont know if that wire is a tach wire if any one knows can u help

 

doe any one have a wire schimadict( diagram)

 

i have the whole schematic of the whole car (dads a sales manager at a dodge dealership) if u need enthing ask ill c what i can do

 

can u upload the diagram for where the gauge cluster plugs in. its rectangle in shape and like 16 wires coming out of it thanks

 

which wire for the pcm though?