Mercedes SL Engine Misfire Issue Resolved

My 2007 Mercedes SL with a Gasoline engine is acting up Check engine light is on, it idles roughly and stalls, and it's jerking when I accelerate I'm getting engine misfire codes I think it's the fuel pressure sensor I checked the fuel pump, and fuel delivery seems okay I suspect a bad cable or plug connection Has anyone seen this

4 comment(s)

I had a similar issue with my SL Check engine light kept appearing, and the engine was not happy It ran roughly, especially at idle It could be the fuel pressure sensor, but before replacing parts, have you checked the wiring and connections to the sensor Sometimes it's a loose or corroded connector

I visually inspected the connector It looked fine Did you have the same jerking under acceleration And did you get codes pointing to the fuel pressure sensor I'm trying to avoid replacing parts unnecessarily

The jerking under acceleration was there I had a code relating to fuel pressure, but I'm not a mechanic I took it to a shop, and they found a bad connection They cleaned it, re-seated the connector, and it's been fine since It might be worth trying before you replace the sensor

You nailed it The connector WAS the problem I cleaned it, applied dielectric grease, and it's good Cost 95€ at the shop No more check engine light or engine stalling I appreciate the tip

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