How to by pass a resistor pack on a 1987 mazda s4 turbo?

 

Fuel pump resistor/relay, or injector resistor pack? Why are you wanting to bypass?

 

Sorry injector resistor pack. The car has s5 turbo injectors and this means it is high impedance right? Another thing the injector resistor pack has five wires which ones do i connect together?

 

I'm also using a s4 stock ecu.

 

Yes, S5 injectors are all high impedance.

To bypass an injector resistor pack, you connect ALL 5 wires on the harness-side plug together. One wire is power from the main relay and the other 4 go to the (+) side of each injector (B/Y wires). By connecting everything together, you run direct power to each one.

You can also cut the wires off between the pack and the pack-side plug and solder them together there: https://www.rx7club.com/2nd-generati...or-box-672951/

 

ok i think I'm going to modify the injector resistor pack side and just solder the 5 wires and just connect the pigtail back to the hardness. Thanks for your help!

 

Hey RotaryRocket88. Can you show me or give me a link on how to do a compression test? Another problem I have is that the car didn't come with a fuse box cover and i don't know which fuse is for the injectors. I know that you need to take off the injector fuse in order to do the compression test right? One more thing what type (metric? right?) of socket and what size? I tried the 5/8 and the 3/4 and they were long and they didn't fit to the spark plug. please help I'm new to mazdas sorry for these types of questions.

 

Compression test:
Banzai Racing Home Page

 

13/16 socket for the spark plugs.
Sec Gen section "FAQ's has the fuse diagram.
I pull the first 2 closest to the engine.(EGI and Comp fuses)

 

thanks guys i appreciate your help.