Megasquirt

[j1valverde]

Hi there I recently got a 280Z with Megasquirt and DIYautotune. The wiring was shoddy to say the least and as I was driving the car died. I took a look and 3 fuses had blown. I quickly replaced those. Now it cranks but won’t start. 

 

[seattlejester]

Hmm twisted wires is always a bad sign but you can't just replace a fuse and expect it to work again. Generally that means something caused the circuit to take in more amps than was deemed necessary. If you weren't the cause of it ala jump starting the car or kicking a power wire to ground or something then you have to trace the fault.

 

In this case three of your circuits were overloaded. You have to find if they have a common fault or if it cascaded as one fuse blew if it caused other circuits to overload. 

 

Looks like you have a megasquirt with a relay board. All the wires will be labeled so find where the fuse blew and trace the wire back or forward until you find the fault.

[j1valverde]

On 7/5/2019 at 3:30 PM, seattlejester said:

Hmm twisted wires is always a bad sign but you can't just replace a fuse and expect it to work again. Generally that means something caused the circuit to take in more amps than was deemed necessary. If you weren't the cause of it ala jump starting the car or kicking a power wire to ground or something then you have to trace the fault.

 

In this case three of your circuits were overloaded. You have to find if they have a common fault or if it cascaded as one fuse blew if it caused other circuits to overload. 

 

Looks like you have a megasquirt with a relay board. All the wires will be labeled so find where the fuse blew and trace the wire back or forward until you find the fault.

Thanks I traced the wires to where they should go and spotted two TPS wires were  in the same post and had a additional black wire attached. I removed the ground looking wire and put them in their respective areas.