Recent content by Brendan Courtney

No battery light, it’s on and off per test requirements. I’ll take it in for a test and see what they say. I’ll down load the link later. Thanks for your help I’ll keep you posted.

After checking voltages it seems like the “I” circuit is higher in voltage than it should be, I’m getting 11v vs. the 6v it says I should be getting.

Thanks Jay, I’ve had the alt and battery tested, both were bad at one time or another. Battery is new, Autozone, and it’s a new alternator J2Fab. I think something is causing them to fail. Let me try out what you have posted and I will update the thread. I have a DMM, thanks for your help!

Thanks man

Bummer battery light on, connector good I’m ****ed haha

That sounds more like it! Reclick which connector? At the alt it at the fuse coupler? I’ll check for the battery light when I get home.

I have not checked the ECM but I will look into it.

A capture of voltage before problem and current state. Second one is voltage fallout at WOT

It’s weird, at idle the alt isn’t putting out the 14v it should be, more like 12-12.5 if I tip in the gas a little it brings the colts up to where they should be. However, at WOT the voltage is falling out....

I’ve done the “Big 3” with a previous alternator...

I’m aware haha currently running a J2 Fab it’s not the alternator...

Anyone in the PHX area know of a good trouble shooter for electrical issues? Been struggling with voltage (no it's not the alt) issues. I can see it in the SCT X4 that voltage is erratic across battery voltage, volts across injectors, etc. I've heard of some places for typical cars but not for...

Is there a way to isolate the FPDM? I have power at the inertia switch; back probing the FPDM I don't see any voltage.

Jay will do...thanks. White Snake, yeah that noise suppressor got me before, I'm aware of it. I'll look at both suggestions and see what I come up with, thank you.

Hello, I'm kinda stumped but still investigating an issue that started in my tune. I noticed that my volts signal was all over the place on every graph for power. Where I used to have a straight line for volts, is now very erratic across "Fuel Pump Voltage from Table", "pressure drop across...