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He said 555G2 not R2. Big difference. I run a dedicated snow tire (Michelin X-Ice) in the winter with a 245 width. At any temperature under 60 degrees, the snow tire outperforms the 305 width 555G2's. They're just not very good. I do hear good things about the R2. If you're going to do a...

I wouldn't overthink it. That ground isn't there for the starter, it's just there for the trigger wire that goes hot when you turn the key to start. It's not high current. Hell you could probably use an equal gauge or slightly larger wire as the small red wire and route it to some other...

Cruise control not working is a dead giveaway that the transmission gear ratios are not set correctly in the tune. The Bowler harness can correct the OSS gear ratio, but it can't change the allowed range of gear ratios in the tune that tell the ECU which gear you are in. For some reason, cruise...

No, it didn't work for me on the AC side. I can't remember if I tried it on the crank pulley, but I have an ATI balancer. I forgot about this post and I should have deleted my recommendation. I bought the tool and didn't need to try it out for months, then when I went to use it, I couldn't...

I doubt the O2 sensors are the problem. The green cats just aren't as clean as the stock cats. This is the same code you get when you run catless headers.

I was just out topping off my system since I recently filled it and it takes forever to get all the air bubbles out. After filling, I took a quick video to show you what it should look like when the pump is turned on:

You can see it flowing in the fill tube when it's running. You will get a lot of bubbling and turbulence. I have never seen IAT temps that high with a functional intercooler system. If I were you, I'd trace the wiring to the relay. If it goes to the IMRC connectors behind the engine, then...

Intercooler pump should be on any time the ignition is on. It doesn't turn on at a certain temp unless you have something very custom. How did you verify it was running?

The rear O2 sensors contribute to some correction of the front O2 sensors and fuel trims. There is a system called FAOSC that should be disabled in the tune if you don't have the rear O2 sensors in the exhaust stream. Unfortunately, this is another item that most tuners won't touch anymore due...

Ford's battery management system (BMS) will vary the charging voltage based on battery lifetime, temperature, etc. If I remember correctly, the voltage range it can command is 12.3 - 15.2 V. When a new battery is installed, the system should be reset so it knows it has a new battery. If it...

The other guy had trouble due to the rev matching feature and the sensor in the trans that tells what gear it's in. Do the 2018's have this feature? Did you have tune changes for the new gear ratios and the OSS count/rev? How is the transmission wired? Are you using a conversion harness...

Was your previous tune the Whipple canned tune? IAT2 should not read if you used the relocation harness. Normal IAT will be reading from the IAT2 sensor. -40 is the result when the sensor is unplugged from the old harness. For the high temps... when you switch from the Whipple tune to a...

That looks to be a lot of things that come from the same wiring harness that runs along the passenger side under the starter... by the passenger side of the oil pan. Is it possible the harness is damaged or connectors unplugged?

This is where the ground is. Not my picture, I took it from the internet, but the black circled ground wire connects to the stud with the red arrow. The stud is one of the four bolts that holds the motor mount bracket to the engine block. There should be a nut on that stud for the wire. I...

I don't know if the GT350 is the same as the GT in this area, but I would also check the ground at the passenger side motor mount bracket where it bolts to the engine near the starter. There is a stud there with a large ground cable and it's possible the dealer touched it.

Which tables are you adjusting for that? Driver demand or are you manipulating throttle mapping? I don't understand the torque and how to generate the torque inverse very well so I shy away from touching those tables. I was wondering if I could remap the throttle so 100% pedal is something...

I don't think Corsa sells the headers anymore due to the EPA bullying and they only had catless. Too bad because I have a set and they're beautiful.

If I remember right, you can setup a spare key to have some restrictions like not being able to turn off traction control. I think there's a speed limiter too? I don't think you can limit full throttle, but at least you can prevent a few things.

I had a gen 2 and now have a gen 4 whipple on a 2016 with Whipple's big heat exchanger. I used to log IAT2 religiously and tried many airflow mods to try and get cooler temps. I never went to a different pump or heat exchanger, but I opened up the grill, added ducting to the airbox...

It's really tough to eyeball what's going on with a live gauge like that. A real datalog is much easier to track. The timing strategy on these cars is very advanced. As you climb in RPM and load, you could easily push into a different cam position and jump to a different timing table for that...