Hello. Not sure where to post this but I have a 2009 G550 that is giving me misfire on all driver side cylinders. I've swapped coils and plugs both new and with other side. I have even ran a straight pipe thinking it's a clogged cat. I have heard somewhere that it could be an ECU issue. Anyone else able to chime in or direct me would be appreciated.

Location ? Sounds like you need a good Indy to pull codes...

I am in Texas. I pulled the codes hence the misfiring. I have replaced the O2 sensors up and down stream on that side as well.

if it's close enough or workable, I can't reccommend Adam and Dave at Eurocharged ATX for baselining or problem shooting a Merc enough.... and if you want tuning.....

hope you get it resolved

Cheers

Any chance you'd have Eurocharged ATX's website? I tried www.eurochargedatx.com and the site doesn't seem to exist..

strange - here's the facebook if you haven't gotten to them yet.... https://www.facebook.com/eurochargedatx/where in TX are you - might be other options I can share if you're not over that way...

Erich

Thanks for the info. I'm not in Texas... I'm in Panama, Republic of Panama and just want to have as many sources for parts/service as possible due to the extremely limited (and vulgarly expensive) local option (the stealership).

oh boy - that's a bit of a drive to Austin

I looked at buying a diesel landcruiser from down there but logistics were challenging....