Rev counter going wild

Rev counter going wild

Author
Discussion

Lemonentry

Original Poster:

136 posts

135 months

Monday 21st July 2014
quotequote all
Hi yer

Rev counter on my 3.9 goes wild after hitting 4000 rpm, but the engine remaines smooth, ive been told it should have a resisitor fitted on the coil. Been on ebay and found this:,

Genuine Range Rover Classic 3.9 V8 Diode/Resistor Ignition Coil ERR40

Is this what i need please? and if so does it wire on the + positive and down to engine earth on the coil?