Misfire after MHD Tune

TommyCa313 · 11-23-2021, 08:27 PM

Just got 2-step Spark Plugs and coils, after putting just the stage 1 MHD Tune im getting a misfire code for cylinder 2 and 3, Switched the coils and checked the gap for the spark plugs, same thing, i was wondering if maybe the injectors are on their way out, any help?

Saif2018 · 11-23-2021, 08:33 PM

Quote:

Originally Posted by TommyCa313

Just got 2-step Spark Plugs and coils, after putting just the stage 1 MHD Tune im getting a misfire code for cylinder 2 and 3, Switched the coils and checked the gap for the spark plugs, same thing, i was wondering if maybe the injectors are on their way out, any help?

2 step colder plugs are for high powered Hybrid turbo or Single turbo setups, not for Stage 1 OTS maps

You should be using OEM Bosch 3 pronged plugs at your power level, 1 step colder at most.

iqraceworks · 11-24-2021, 07:02 AM

Yep....1 step colder plugs is all you need, and gap them at .022".

11-23-2021, 08:27 PM	#1
TommyCa313 Registered 0 Rep 1 Posts Drives: 2008 BMW 335i E90 Join Date: Nov 2021 Location: Rochester, Michigan iTrader: (0)	Misfire after MHD Tune Just got 2-step Spark Plugs and coils, after putting just the stage 1 MHD Tune im getting a misfire code for cylinder 2 and 3, Switched the coils and checked the gap for the spark plugs, same thing, i was wondering if maybe the injectors are on their way out, any help?
	Appreciate 0 Tweet Quote

11-24-2021, 07:02 AM	#3
iqraceworks Brigadier General 2004 Rep 3,732 Posts Drives: 2007 335i Join Date: Aug 2019 Location: Missouri iTrader: (0)	Yep....1 step colder plugs is all you need, and gap them at .022". __________________ 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
	Appreciate 0 Quote