HKS350 does it again! Living up to the title..
Lexus Test Driver
Joined: Aug 2009
Posts: 1,353
Likes: 3
From: Louisiana
I didnt see that you said firewall earlier. I was thinking of something completely different....my bad.
The HKS F-con has a base map that has 64 different settings that can be adjusted. The adjustments can be made via 8 dip switch combinations so a total of 64 possable tunes. All these do is change the base maps around. The HKS F-con monitors the engine data (rpm, timing, fuel% etc...) via the OBD2 port. When its plugged into the OBD2 port its in full time learn mode. When I like the tune I just unplug the F-con from the OBD2 and it will run that map.
The issue I'm having is I'd like to change the base mapping to speed up the tuning process but the cars tune is getting better the more I drive. So I'll most likely wait and see how the F-con does on its own. HKS pro dealer WILL NOT give me any info on the dip switches. This is what they change when you pay them to tune so its kinda there bread and butter to keep it to themselves.
As for the wiring going through the firewall. You have to get a harness about the size of your wrist/forearm into the cabin of the IS. So making your own hole is the only option. The HKS instructions show you where to do so and its very clean OEM'ish.
The issue I'm having is I'd like to change the base mapping to speed up the tuning process but the cars tune is getting better the more I drive. So I'll most likely wait and see how the F-con does on its own. HKS pro dealer WILL NOT give me any info on the dip switches. This is what they change when you pay them to tune so its kinda there bread and butter to keep it to themselves.
As for the wiring going through the firewall. You have to get a harness about the size of your wrist/forearm into the cabin of the IS. So making your own hole is the only option. The HKS instructions show you where to do so and its very clean OEM'ish.
Intermediate
Joined: Jun 2010
Posts: 386
Likes: 0
From: CA
As far as I can tell, the stock ECU learns, the F-Con uses ECU data to make adjustments, and than the stock ECU learns from those adjustments; it basically should be adjusting (stock ECU) based on adjustments (F-Con).
