This is a simple guide how to install a fuel warning light from NBFL (Mk2.5) into NB (Mk2) Mazda MX-5. You will need tools to remove the instrument cluster, soldering equipment, a bit of thin electrical wire and of course a donor NBFL instruments which have the warning light (we’ve heard that not all do), from which you’ll take the warning light circuit board.
Source a donor instrument cluser from 2001-2005 NBFL Mazda MX-5 and always check, if it has the warning light (some 2001-2002 might not have). Remove the instrument cluster from your car: remove the trim around the steering wheel, then undo the 4 bolts holding the instrument cluster in place and carefully disconnect all the cables.
1) Open the spare instrument cluster and remove the warning light circuit board
2) Carefuly open your instrument cluster and make room for the circuit board in the same spot as it was in NBFL
3) Install the circuit board into your cluster the same way as it was in the donor cluster.
4) Take off the light shade from the donor cluster and put it into your.
5) Carefully put some solder onto the bulb’s contact points.
6) Put the bulb into the cluster and solder wires to it’s contacts.
7) Connect the wires as on the photo (best is to use crimp rings).
8) Put your NB instrument cluster back together, install it in the car and test if everything works.
That’s it. You should get at least 50km (30 miles) of range from the moment it comes on. We hope you found this guide useful. If you’re disassembling the instruments for this modification, we recommend to do a coolant temperature gauge linearisation and optionally an installation of our oil pressure warning light (also includes parts for linearisation and can be purchased here).