Superknock on cylinders 5 and 6

335x · 02-05-2024, 08:36 AM

After doing a friendly run against my friend’s 2020 Mustang 5.0 last night in Mexico, the check engine light came on at around 135 mph and I let off immediately and these were the codes that came up, I am on upgraded turbos but I am on stock fuel pump, stock tmap sensor and the injectors are index 7.

Could the reason be the tune is too aggressive for having the stock fuel pump with those injectors?

The car ran perfectly after and this morning on my way to work it started up perfect and drove fine.

iqraceworks · 02-12-2024, 12:52 PM

Do you MHD, or some way to record a log? See what's going on. Your LPFP could be going bad.

02-05-2024, 08:36 AM	#1
335x Registered 8 Rep 1 Posts Drives: BMW 335 xDrive Join Date: Aug 2023 Location: San Antonio iTrader: (0) Garage List 2010 335 xDrive [7.00]	After doing a friendly run against my friend’s 2020 Mustang 5.0 last night in Mexico, the check engine light came on at around 135 mph and I let off immediately and these were the codes that came up, I am on upgraded turbos but I am on stock fuel pump, stock tmap sensor and the injectors are index 7. Could the reason be the tune is too aggressive for having the stock fuel pump with those injectors? The car ran perfectly after and this morning on my way to work it started up perfect and drove fine. Attached Images
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02-12-2024, 12:52 PM	#2
iqraceworks Brigadier General 2001 Rep 3,731 Posts Drives: 2007 335i Join Date: Aug 2019 Location: Missouri iTrader: (0)	Do you MHD, or some way to record a log? See what's going on. Your LPFP could be going bad. __________________ 2007 335i, BMS DCI, BMS Chargepipe w/Tial BOV, ARM Catless Downpipes, silicone inlets, Bilstein B12 Prokit Suspension, Whiteline subframe bushings, Front/Rear M3 control arms, G-Plus FMIC, Stage 2 LPFP, Custom E40 tune by Justin (V8Bait), xHP stage 3 transmission flash, RB Two Turbos....10.90 @ 128mph
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