Rough Idling

[folj88]

Anyone dealing with Rough Idle on cold starts around 1200 rpm. Once rpms drop as car warms, she runs perfectly fine. I notice recently sluggish a little bit on the acceleration when I hit it. Recently put me spark plugs in gapped correctly. Ngk irridium. Please help. 2014 3.8l

 

[jep604]

Anyone dealing with Rough Idle on cold starts around 1200 rpm. Once rpms drop as car warms, she runs perfectly fine. I notice recently sluggish a little bit on the acceleration when I hit it. Recently put me spark plugs in gapped correctly. Ngk irridium. Please help. 2014 3.8l

When was your MAP sensor replaced if known? Do you use any fuel injector additive? I use Lucas every every time I fill up unless I get BP fuel.

 

[folj88]

When was your MAP sensor replaced if known? Do you use any fuel injector additive? I use Lucas every every time I fill up unless I get BP fuel.

I've never replaced it. I purchased the car last year with 125k on it. She drove so damn smooth when I got her and still do after the rough idle of course. I'll change that tomorrow and give update. Thanks for feedback

 

[jep604]

I've never replaced it. I purchased the car last year with 125k on it. She drove so damn smooth when I got her and still do after the rough idle of course. I'll change that tomorrow and give update. Thanks for feedback

I had the first MAP sensor changed by the dealer at about 75K miles so at 212K I am probably due for another. Plugs are original. Good luck and I hope it solves your issue.

 

[folj88]

I had the first MAP sensor changed by the dealer at about 75K miles so at 212K I am probably due for another. Plugs are original. Good luck and I hope it solves your issue.

Oh wow. I bet my sensors have never been changed. Thanks and will reply with update

 

[folj88]

Oh wow. I bet my sensors have never been changed. Thanks and will reply with update

Question, so you know if the 2014 3.8l sedan have a maf sensor. I'm seeing mixed messages online

 

[jep604]

Question, so you know if the 2014 3.8l sedan have a maf sensor. I'm seeing mixed messages online

MAF is the Mass Air Flow sensor. MAP is Mass Atmospheric Pressure sensor. Different manufacturers call them different names. I just went back thru my records and I didn't have the MAF sensor replaced, it was the PCV valve replaced. Sorry for leading you astray.