ECMlink 1G ECMLink Log Review

[awdseegs]

Good day,

I purchased this car last December and have been slowly bringing it back. I plan to daily drive it, so I added power steering and AC back to the car. Both the AC and power steering are working as expected after some troubleshooting. I added the IAC/FIAV back to the car to help with the cold start and no idle that I had when I first purchased the car. I have boost leak tested and repaired all leaks, replaced nearly everything gasket/seal that I could (including both transfer case seals). The car drives reasonably well, but I have very little experience with DSMLink. I was able to dial in the fuel a bit so that it idles reasonably well, but still shakes the car a bit. I want to see if I can get a smoother idle based on what is in my log. I would really appreciate some overall feedback on the tune, too. Thanks! I could be asking for too much considering the mods that are currently on the car:

This is my mod list:

Engine / Turbo System​

• 6-bolt 4G63 engine
• ARP head studs
• HKS 264/272 cams
• Tubular exhaust manifold
• 20g
• S90 billet throttle body
• GM IAT sensor
• GM 3-bar MAP sensor
• Speed density setup
• DSMLink V3 (socketed ECU)
• FIC 1050cc injectors
• Front mount intercooler (FMIC)
• 3" exhaust
• Upper intercooler pipe upgraded
• Greddy blow-off valve
• Walbro 255 fuel pump
• Aftermarket oil catch can
• Oil feed/return lines upgraded
• Oil return leak currently being addressed

Fuel / ECU Tuning​

• DSMLink V3 tuning
• Speed Density enabled
• Injector scaling/tuning for 1050cc injectors
• Base fuel pressure adjusted:
  • Originally ~47 psi
  • Later changed toward ~40 psi
• Wideband O₂ (LC-1)
• GM sensors integrated into DSMLink

Cooling System​

• Aftermarket aluminum radiator (CX Racing style setup)
• Dual slim electric fans with shroud
• Battery relocated to trunk
• Plans/repairs:
  • Rewire front fans
  • Fan circuits through underhood fuse block
  • Considering independent fan relays
• Factory fan control modified because radiator did not have factory thermo switch provision
• FIAV installed
• ISC installed
• S90 throttle body setup retained

Drivetrain​

• AWD drivetrain
• ACT 2600 clutch
• Transfer case leak repair pending
• Transfer case/input/output seals being investigated

Brakes​

• CTS-V big brake upgrade
• Researching Tesla Model 3 Brembo caliper swap options
• Looking at hub-centric/adaptor solutions

Suspension​

• Megan Racing lowering springs
• KYB AGX adjustable struts
• Rear KYB AGX + Megan springs installation planned/being completed

Wheels / Tires​

• 17x8 Platinum Reprisal wheels
• Offset: +40
• Tire sizing discussed:
  • Looking for a size that keeps speedometer accuracy

Interior / Electronics​

• Battery relocated to trunk
• USB charger added/planned
• Rear speakers repaired/planned
• Dash trim installed
• Rear carpet installed/planned
• Rear view mirror installed
• Electrical cleanup ongoing

Exterior​

• R65 maroon/burgundy exterior
• Front bumper work completed
• Side markers completed/resealed
• Front headlights polished
• Headlights and side markers installed/planned
• Front emblem installation pending
• Passenger-side molding repair pending

A/C System Upgrades​

• New compressor
• New drier
• New expansion valve
• Evaporator installed
• Converted/serviced system for R134a
• Repaired AC wiring issue:
  • Found break between AC thermo switch and low-pressure circuit
  • Added jumper wiring to restore AC request signal
• DSMLink AC request working after wiring repair
• Currently producing cold air

Current Remaining Items I Have Tracked​

• Fix rear speakers / USB plug
• Repair oil return leak
• Finish transfer case leak/seals
• Complete fan wiring cleanup
• Passenger-side molding repair
• Front emblem installation
• AC tensioner bolt repair

Overall build theme:​

A street-driven AWD 1G Talon TSi with a built DSM foundation, targeting roughly a 400–500+ hp capable setup with:

• FP Green/20G-class turbo
• 1050cc fueling
• DSMLink speed density
• FMIC
• upgraded clutch
• upgraded brakes/suspension
• OEM+ restoration touches

 

[Stapl3]

In direct access, you need to go to the LoadScale tab and change it from 114.8 to 100. 114.8 would be accurate if the engine was a 1.7L bored over something like .030. It's just wrong.

In direct access, go to InjBatteryAdj and change the values to below. This is the personality of the injectors and should not be changed.

7v -> 2988
9v -> 2142
12v -> 1266
14v -> 971
16v -> 789
19v -> 558

I assume this is on e85? Global and timing table suggests it, target a/f ratio suggests like 87oct.

Your coolant temp is absurd. You need to change the thermostat, get the fans working, add coolant, or all of the above.

Your alternator seems to be on the fritz.

ISC is doing a lot of work, I would turn the BISS counterclockwise a bit.

I would enable airflow smoothing with SD.

 

[awdseegs]

This is awesome! Thank you very much.

It's actually on 93 octane. It has an aftermarket radiator/shroud setup that looks like a CXracing style. I have both fans running all the time now and it still slowly creeps up. Coolant was just topped off right before this log. Still way too hot.

Yes, the alternator is not outputting enough volts. I remember there was a 90a alternative.

I have the S90, does it have a BISS?

I will enable airflow smoothing.