919.s550
Member
- Joined
- Sep 14, 2020
- Threads
- 1
- Messages
- 13
- Reaction score
- 6
- Location
- Raleigh, NC
- First Name
- Emmanuel
- Vehicle(s)
- 2019 Mustang GT
- Thread starter
- #1
Recent Whipple install has been one headache after another between initial package delivery being delayed, to FexEx completely trashing the 1st blower unit and needing to get another blower shipped out, to missing parts and having to delay install to now having a potential ‘intake leak’ I cannot seem to find. Here’s a little about the car
2019 Mustang GT PP1 w/ Gen 5 3.0 Whipple on a 3.875 pulley
NGK 6510 .028” gap
Stock fuel pump with Lethal Performance BAP
DW95 injectors
93 Octane fuel
132mm Throttle body on stock Whipple closed air box
IAT2 brass temp sensor
Full Corsa exhaust with 1.875” headers
So still trying to get past the base tune. Car seems to idle perfectly to say the least, drives good however at idle after car is warmed up Short term fuel trims climb high have gotten up to 30-45%+ (seem to climb higher and higher the longer the car idles, have only seen it get to 45ish%) indicating a lean condition, was advised by the tuner it’s a intake leak. Aside from looking at the trims you would not know the car is running rough aside from the excessive fuel smell coming from the exhaust. According to car’s vacuum gauge (unsure of accuracy of the thing) it idles at 21inHg.
Now to what I’ve done:
I have smoke tested the system only found 1 leak around the IAT treads which has been fixed but made no change in the fuel trims
Have plugged off intake side of the PCV system and venting the valve cover side.
Have plugged Purge valve line
Have plugged off brake booster line
Have removed SC lid and verified O-ring around the perimeter was good and while in there also checked bypass O-ring. All is good.
Smoked tested a few more times both while engine was cold and hot (was thinking maybe something was expanding and allowing air in?) no smoke exiting was found.
Have also tried the gas Trick around potential leak areas with no change to fuel trims either. I’ve tried looking at other posts, haven’t found one with my issues. I can provide the 2 logs I’ve gotten so far, they’re .csv files but I’m unsure how to post them on here. any help is greatly appreciated
2019 Mustang GT PP1 w/ Gen 5 3.0 Whipple on a 3.875 pulley
NGK 6510 .028” gap
Stock fuel pump with Lethal Performance BAP
DW95 injectors
93 Octane fuel
132mm Throttle body on stock Whipple closed air box
IAT2 brass temp sensor
Full Corsa exhaust with 1.875” headers
So still trying to get past the base tune. Car seems to idle perfectly to say the least, drives good however at idle after car is warmed up Short term fuel trims climb high have gotten up to 30-45%+ (seem to climb higher and higher the longer the car idles, have only seen it get to 45ish%) indicating a lean condition, was advised by the tuner it’s a intake leak. Aside from looking at the trims you would not know the car is running rough aside from the excessive fuel smell coming from the exhaust. According to car’s vacuum gauge (unsure of accuracy of the thing) it idles at 21inHg.
Now to what I’ve done:
I have smoke tested the system only found 1 leak around the IAT treads which has been fixed but made no change in the fuel trims
Have plugged off intake side of the PCV system and venting the valve cover side.
Have plugged Purge valve line
Have plugged off brake booster line
Have removed SC lid and verified O-ring around the perimeter was good and while in there also checked bypass O-ring. All is good.
Smoked tested a few more times both while engine was cold and hot (was thinking maybe something was expanding and allowing air in?) no smoke exiting was found.
Have also tried the gas Trick around potential leak areas with no change to fuel trims either. I’ve tried looking at other posts, haven’t found one with my issues. I can provide the 2 logs I’ve gotten so far, they’re .csv files but I’m unsure how to post them on here. any help is greatly appreciated
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