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TOPIC : misfire

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Dirty Honda Injectors

This bulletin applies to 2018-2019 Honda Odyssey, 2016-2019 Pilot and 2017-2018 Ridgeline vehicles. The MIL may come on with DTC P0300 (random misfire detected) and/or P0301-P0306 (cylinder misfire detected), or P219A/B (air-fuel ratio variation of cylinder (bank 1, rear bank/bank 2, front bank)

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Sweaty Intercooler

This bulletin applies to 2015 Mercedes-Benz C250 vehicles. The check engine light may be on and a misfire or reduced power may be experienced. This may be due to possible accumulation of condensation in the intercooler during long steady drives in areas with high humidity of greater than 70%.

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Flamethrower Vette

In certain 2019 Corvettes equipped with a 6.2L supercharged engine, a fuel injector may be commanded on for 7.5 seconds when exiting deceleration fuel cutoff, causing the engine to misfire.

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Moody Mustang

Some 2013 Ford Mustangs built on or before 11/30/2012 and equipped with a 5.0L engine and manual transmission may exhibit a check engine light accompanied by any combination of DTCs P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and/or P0308 stored in continuous memory only. Additionally, there will be no apparent drivability symptoms present and no other DTCs.

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Stumbling Ford

Some 2013 Ford F-150 trucks built on or before Sept. 18, 2012, and equipped with a 3.5L gasoline turbocharged direct injection (GTDI) Ecoboost engine may exhibit an intermittent stumble and/or misfire on hard acceleration after an extended drive at highway speeds during high humid or damp conditions.

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Ford F-150 Stumble

Some 2013 Ford F-150 trucks built on or before 9/18/2012 and equipped with a 3.5L gasoline turbocharged direct injection (GTDI) Ecoboost engine may exhibit an intermittent stumble and/or misfire on hard acceleration after an extended drive at highway speeds during high humid or damp conditions.

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VW PCV Test

This bulletin applies to 2008-2013 Volkswagen Passat sedans, with regard to crankcase breather diagnosis.  The technician may find rough running, engine noise and MIL on with DTCs P0300, P0301, P0302, P0303, P0304, P2279, P1297, P1093 or P2187 stored in the ECM.

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Audi Misfire

This bulletin applies to Audi A8 vehicles, where DTC P0300 (random/multiple cylinder misfire) or P0301 – P0312 (cyl 1 – cyl 12 misfire) is detected. The engine may have reduced performance without significant loss of power or stalling.

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Mustang Manifold Mishap

Some 2015-2017 Ford Mustangs equipped with a 5.0L engine may exhibit an illuminated MIL with DTC P0300 through P0308 present. A noticeable misfire may or may not accompany these DTCs.

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Corvette Misfire

This bulletin applies to 2001-2013 Chevy Corvettes that present with a P0300 random misfire on a random cylinder. The vehicle may have P0301 – P-308 or P0300 only.  

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