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NEED HELP- Improper Idle After Twin Scroll Kit Install.
Hey what's going on on everyone. Im interested in finding out if anyone else is running a Full Race Twin Scroll T4 kit on their X. I just finished my build and was able to get it tuned. Car made 500whp/342tq at 26psi on the EFR-8374 running regular pump 93. The car is/ feels phenomenal and there was plenty of room to keep going but im still stock bottom end so didn't want to push it any more.
The problem I am running in to is the idling issue. When I cold start the car first time, it will idle just fine with no known issues. If I shut the car off and then start it right back up, it will not idle properly and keep dropping to about 6-800rpm and choke itself out and stall. My MAF is clean and has no issues but we swapped to a brand new one and problem still occurring. Im just trying to figure out what the problem could be causing the idling issue. Before the build the car was perfect 100% of the time with no idle issues.
I would like to be able to drive this car and enjoy it without keeping foot on gas at lights to keep it from stalling. Any help or suggestions would be greatly appreciated.
Before Build
Injen intake w UICP
ETS 4" FMIC
Tomei Widemouth DP
Tomei Titanium Exhaust w Test Pipe
FIC 775cc
28psi Stock Turbo
After Build
GSC S2 Cams w/ Valve's & Springs
FIC 1650cc
Walbro 450
Fuel Pressure Regulator
Inline Fuel Filter
Full Race Twin Scroll Kit
EFR-8374 EWG
UICP & LICP
3.5" Intake (Full Race)
TiAL Q BOV
Stock Bottom end
Stock Head
what is controlling that massive fuel pump? Is it running full voltage all the time? What does the wideband (assuming you have one) say is going on when it is idling rough? What is your target idle RPM set to in the ECU?
Need a lot more info.
what is controlling that massive fuel pump? Is it running full voltage all the time? What does the wideband (assuming you have one) say is going on when it is idling rough? What is your target idle RPM set to in the ECU?
Need a lot more info.
I will double check the wideband for you later on and the idle target. I know on the original cold start it will idle between 1k-1200 just fine. When I ordered the fuel pump (MAP) I ordered the install/ wiring kit for it as well along with all the upgrade relays.
what is controlling that massive fuel pump? Is it running full voltage all the time? What does the wideband (assuming you have one) say is going on when it is idling rough? What is your target idle RPM set to in the ECU?
Need a lot more info.
I will double check the wideband for you later on and the idle target. I know on the original cold start it will idle around 1200 just fine so I'm assuming it's 1200. When I ordered the fuel pump (MAP) I ordered the install/ wiring kit for it as well along with all the upgrade relays.
Anything specific I should be looking for with the wideband?
I will double check the wideband for you later on and the idle target. I know on the original cold start it will idle around 1200 just fine so I'm assuming it's 1200. When I ordered the fuel pump (MAP) I ordered the install/ wiring kit for it as well along with all the upgrade relays.
Anything specific I should be looking for with the wideband?
Idle target should be 14.7. Let's see if it is idling rich or lean....
