Where is the fuel injector relay on a Miata?
The relay for the fuel pump relay is under the dash. The relay in the fuse box under the hood controls power to the coils, injector, and airbag and gets power from the fuse marked INJ (mine has a cap that says airbag over it). Pulling any of the three will inhibit the engine from starting.
How do you clean injectors on a Miata?
He swears by the 44K products and cleaning the fuel injectors, etc….
- Cut a short piece of 5/16″ fuel line, about 6″.
- Force the hose over the tip of the injector.
- Fill the hose 1/2 full of cleaner.
- Tightly hold the top of the injector in a towel to catch the spray and the screen if it should dislodge.
How to bypass fuel pump relay on Miata?
MIATA NO START SOLVED! FUEL PUMP RELAY BYPASS FOR FREE – YouTube If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information.
How do you fix a bad fuel pump relay?
5. Install a jumper between the Fuel pump and Ground pins on the Diagnostic connector. This will pull in the fuel pump relay and you SHOULD get 12VDC at the fuel pump connector with the ingnition switch ON. If it passes this test, the fuel pump relay CONTACTS AND COIL are working. If it fails this test , you probably have a BAD Fuel Pump RELAY.
How to diagnose fuel delivery problems in a Miata?
A multimeter — you’ll need this to be able to measure resistance and DC voltage. Check the fuses with the meter. You want continuity. Check (listen) for the main relay clicking in when you turn on the switch. It’s on the passenger side fenderwell and it’s pretty loud. you should hear it in the cockpit of the car. Then, move on to: 1.
What to do if your Miata main relay is corroded?
Luckily, it’s an easy fix. Swap out your relay as preventative maintenance or toss a new one in the glovebox. Yes, they’re a bit expensive but they’re cheaper than a tow. When you do remove the original, take a good look at the condition of the socket in the fusebox. If it’s corroded, we recommend cleaning it to prevent a recurrance.