Ecu boost control via EVAP question

shadow85 · 09-13-2022, 04:29 AM

Planning to have my e85 TT tuned with SZs ECU Ecutek boost control solenoid kit.

But wondering if it completely disables the factory EVAP, and if it does, is it unsafe to drive for long periods, will we get fuel vapors in the cabin and do any long term damage to us? Or is the factory EVAP still in operation?

PJMilton · 10-08-2024, 04:41 PM

Great question shadow85. I am planning to do the same TT tune with SZ and use the Ecutek Evap Boost Control... did you have any issues with vapors or other issues using the Evap boost control setup? Thanks for any insights.

NorthStyle · 10-09-2024, 08:35 AM

You'll be fine.

phunk · 10-09-2024, 11:23 PM

When the EVAP system is disabled, it will not perform its purge cycle, which is easy to think of similar to a water softener regeneration. Without the purge cycle, the charcoal canister just remains saturated and becomes ineffective. The system does not become sealed, it will just stop absorbing evaporative emissions. The fuel vapors will be expelled from the charcoal canister which is towards the rear of the car. You probably will not notice this in the cabin, if at all. Maybe in a closed garage.

At least, as I understand it. I havent spent a ton of energy learning about the EVAP system.

09-13-2022, 04:29 AM	#1 (permalink)
shadow85 Track Member Join Date: Jul 2015 Location: South Australia, Austra Posts: 918 Drives: 15' 370Z A/T AMM TT Rep Power: 25	Ecu boost control via EVAP question Planning to have my e85 TT tuned with SZs ECU Ecutek boost control solenoid kit. But wondering if it completely disables the factory EVAP, and if it does, is it unsafe to drive for long periods, will we get fuel vapors in the cabin and do any long term damage to us? Or is the factory EVAP still in operation? Shrav likes this.

10-09-2024, 11:23 PM	#4 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,668 Drives: 370 Rep Power: 974723	When the EVAP system is disabled, it will not perform its purge cycle, which is easy to think of similar to a water softener regeneration. Without the purge cycle, the charcoal canister just remains saturated and becomes ineffective. The system does not become sealed, it will just stop absorbing evaporative emissions. The fuel vapors will be expelled from the charcoal canister which is towards the rear of the car. You probably will not notice this in the cabin, if at all. Maybe in a closed garage. At least, as I understand it. I havent spent a ton of energy learning about the EVAP system. Rusty, sx moneypit, Gooch and 1 others like this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph Last edited by phunk; 10-09-2024 at 11:31 PM.

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10-08-2024, 04:41 PM	#2 (permalink)
PJMilton Base Member Join Date: Sep 2018 Location: Tennessee Posts: 7 Drives: 2017 370Z Nismo Tech Rep Power: 7	Great question shadow85. I am planning to do the same TT tune with SZ and use the Ecutek Evap Boost Control... did you have any issues with vapors or other issues using the Evap boost control setup? Thanks for any insights.

10-09-2024, 08:35 AM	#3 (permalink)
NorthStyle A True Z Fanatic Join Date: Aug 2015 Location: Deutschland + SC/FL USA Posts: 1,255 Drives: 2011 370Z Nismo Rep Power: 24277	You'll be fine.