BoostKing
Well-Known Member
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Hey Everyone,
I have a 2018 Mustang that has been great until today. Recap. Two weeks ago, I installed my hellion twin turbo sleeper kit. Car is running great, but wastegate pressure was 9-10 psi and I wanted to put an EBC on the car so I could run like 5 psi for daily and just use the controller to turn it up when I wanted.
Three days ago I put the car on jack stands and got to work swapping out the wastegate springs and installing the GFB3 controller. I also installed an AEM X Series wideband but did not wire it up yet. I did plug the OBD2 connector in but that shouldnt do anything. I didnt give it power from any source yet.
For the GFB3, I used the passenger side foot well grommet that you access behind the fender liner. I pulled the wheel and liner out Carefully I cut the nipple on the existing firewall grommet and fed the boost reference line and harness through to the inside. From there, I ran the power to the kick panel fuse compartment with a Bussman add a fuse on 23. I put a 10 amp fuse on the extended circuit, grounded the nut to the chassis near the fuse panel with the existing mounting bracket just behind the corner sill plate. I plugged in the harness to the GFB3 and it powered on an off with the ignition as needed. I did not start the vehicle since it is in my garage and on jack stands.
For the wastegates, I dropped the downpipes and put the new springs in, then added my new wideband to the rear bung and routed the harness up to the engine bay and through the grommet for later.
I tidied up all my vacuum hoses and such and put the car back on the ground. Excited, I went to start the vehicle and it said steering system fault, see manual. No crank, no start, nothing. Thought that was odd, since I was on the passenger side the entire time and didn't mess with it.
I grabbed Forscan and ran a diagnostic on it. Many DTC's came up. Most are for lost communication to something or another. Tried clearing the codes which did not work.
I noticed during the initial scan from Forscan, it would say it could not communicate with the ICM module. Assuming this is the ignition control module, I am concerned but also unsure of how to proceed.
For info, I have physically checked every fuse by way of continuity, pulling every fuse and manually checking it on my volt meter. Every FUSE, twice.
I swapped around some relays in the engine compartment that seemed relative to modules but to no avail.
I have gone head to tow looking for a pinched wire or disconnected harness. I also have put a battery charger on since it did get a little low. I disconnected the battery for 30+ minutes to see if that would help. I did an individual reset on every module I could get to with Forscan as well.
I am lost, worried I have screwed something up and I have no clue what. This was such a simple install, and now I have no clue where to look. Please let me know if you need more information while I continue to look top to bottom for something unplugged, pinched, or cut. I have yet to find anything. Thanks everyone!
I have a 2018 Mustang that has been great until today. Recap. Two weeks ago, I installed my hellion twin turbo sleeper kit. Car is running great, but wastegate pressure was 9-10 psi and I wanted to put an EBC on the car so I could run like 5 psi for daily and just use the controller to turn it up when I wanted.
Three days ago I put the car on jack stands and got to work swapping out the wastegate springs and installing the GFB3 controller. I also installed an AEM X Series wideband but did not wire it up yet. I did plug the OBD2 connector in but that shouldnt do anything. I didnt give it power from any source yet.
For the GFB3, I used the passenger side foot well grommet that you access behind the fender liner. I pulled the wheel and liner out Carefully I cut the nipple on the existing firewall grommet and fed the boost reference line and harness through to the inside. From there, I ran the power to the kick panel fuse compartment with a Bussman add a fuse on 23. I put a 10 amp fuse on the extended circuit, grounded the nut to the chassis near the fuse panel with the existing mounting bracket just behind the corner sill plate. I plugged in the harness to the GFB3 and it powered on an off with the ignition as needed. I did not start the vehicle since it is in my garage and on jack stands.
For the wastegates, I dropped the downpipes and put the new springs in, then added my new wideband to the rear bung and routed the harness up to the engine bay and through the grommet for later.
I tidied up all my vacuum hoses and such and put the car back on the ground. Excited, I went to start the vehicle and it said steering system fault, see manual. No crank, no start, nothing. Thought that was odd, since I was on the passenger side the entire time and didn't mess with it.
I grabbed Forscan and ran a diagnostic on it. Many DTC's came up. Most are for lost communication to something or another. Tried clearing the codes which did not work.
I noticed during the initial scan from Forscan, it would say it could not communicate with the ICM module. Assuming this is the ignition control module, I am concerned but also unsure of how to proceed.
For info, I have physically checked every fuse by way of continuity, pulling every fuse and manually checking it on my volt meter. Every FUSE, twice.
I swapped around some relays in the engine compartment that seemed relative to modules but to no avail.
I have gone head to tow looking for a pinched wire or disconnected harness. I also have put a battery charger on since it did get a little low. I disconnected the battery for 30+ minutes to see if that would help. I did an individual reset on every module I could get to with Forscan as well.
I am lost, worried I have screwed something up and I have no clue what. This was such a simple install, and now I have no clue where to look. Please let me know if you need more information while I continue to look top to bottom for something unplugged, pinched, or cut. I have yet to find anything. Thanks everyone!
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