HELP CEL ON: Rich at idle bank 1 and 2 / Lean under load bank 1 and 2
#1
HELP CEL ON: Rich at idle bank 1 and 2 / Lean under load bank 1 and 2
Can someone point me a direction?
Catless exhaust and tune to avoid cel
Spark plugs and coils is brand new
Replaced also both primaries O2 sensors
Same codes with maf and mafless tune
It has rough idle during cold starts and get back to normal at warm.
The smell at idle is alot more intense than before but i think it is a result of unburned fuel/rich condition.
Torque Diagnosis
COBB diagnosis
Taken by GF. Not my nails 🤣🤣🤣
Catless exhaust and tune to avoid cel
Spark plugs and coils is brand new
Replaced also both primaries O2 sensors
Same codes with maf and mafless tune
It has rough idle during cold starts and get back to normal at warm.
The smell at idle is alot more intense than before but i think it is a result of unburned fuel/rich condition.
Torque Diagnosis
COBB diagnosis
Taken by GF. Not my nails 🤣🤣🤣
Last edited by Tiago; 03-29-2018 at 04:50 AM.
#5
Have you checked fuel pressure from the pumps? Low pressure can cause rich condition at idle (opposite of what you would think) and then a lean condition on power.
Assuming you have a stock pressure regulator, it should be 3.8bar (~55psi)
If it is out of spec, check the pumps in the tank.
Assuming you have a stock pressure regulator, it should be 3.8bar (~55psi)
If it is out of spec, check the pumps in the tank.
#6
check vacuum line to the fuel pressure regulator on the passenger side fuel rail, it likely popped off
__________________
#TeamAIM
997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
#TeamAIM
997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
Thread
Thread Starter
Forum
Replies
Last Post
Wealth Manager
996 Turbo / GT2
7
02-05-2015 04:18 PM