Even INJ #9 fuse blowing

[MudderFinger]

Wanted to see if anyone had any ideas for me, I have narrowed this done to the Coils and or wiring, but the fuse keeps blowing intermittly while driving and I lose one half of the engine firing. The fuse is supposed to be for Even Injectors and coils, however when it blows the fuse I set codes for Injector control on the Odd cylinders 1, 3, 5, & 7. This was happpening over a week ago and I swapped the entire coils packs and brakets from one side to the other, and the fuse blowing went away for over a week, now it is still blowing same ODD INJ fuse #9, does anyone have any ideas for me to check to futher narrow this down and find root cause. I wish it would blow as soon as putting new fuse in cause it would be easier to find. Thanks for any help/ideas.

[2SSCAMARO]

Melting the fuse sounds like a wire shorting to ground. Have you inspected the even cylinders wiring to the injectors and the coil packs? A wire sheathing may be chaffed and intermittently touches the intake or fuel rail.

[MudderFinger]

Originally Posted by 2SSCAMARO

Melting the fuse sounds like a wire shorting to ground. Have you inspected the even cylinders wiring to the injectors and the coil packs? A wire sheathing may be chaffed and intermittently touches the intake or fuel rail.

I have done that numerous times but maybe I should look again, I was also thinking about coil harness inside of plastic gaurds on brakets maybe. I also have no short when checking it with multimeter so it only happens while driving

[Batmanntexas]

a fuse blows for two reasons: either to much voltage, to much current, or a combination of the two.
Reading your initial post, I'm confused about the fuse. Is it the EVEN fuse or the ODD fuse, because you mention both?

[MudderFinger]

It is even fuse but setting codes for odd injector controls

[2SSCAMARO]

Originally Posted by Batmanntexas

a fuse blows for two reasons: either to much voltage, to much current, or a combination of the two.
Reading your initial post, I'm confused about the fuse. Is it the EVEN fuse or the ODD fuse, because you mention both?

The OEM type fuse's element will melt when a hot wire is shorted to ground or when a current draw in excess of the fuses' rated amperage generates enough heat to melt the element. Think about it for a minute, many guys with BAP's jack the voltage up to 18 to 20 volts and no fuses are blown. I doubt the car's electrical system could ever generate any more than about 16 volts.

[MudderFinger]

Originally Posted by 2SSCAMARO

Melting the fuse sounds like a wire shorting to ground. Have you inspected the even cylinders wiring to the injectors and the coil packs? A wire sheathing may be chaffed and intermittently touches the intake or fuel rail.

I had a stainless steel hose for my Oil catch can and it rubbed the wire for Coil pack #1 and shorted it to ground, I already expected something like this but had really been paying more attention to the other side sense it was Even fuse, but finally had a code for #1 Injector circuit control that lead me to check that coil very well. Thanks for your suggestion as it caused me to relook at things I had already looked for.

[2SSCAMARO]

That's great. Nice find. It's bad enough when you know what the problem is and have to fix it let alone when you can't zero in on the root cause and the problem persists.

[Inferno6256]

I have my #9Fuse keeps on blowing when I press hard on the gas pedal, otherwise nothing happens.
Already changed the relay but it reoccurred. Any help?