[WhitesnakeSS]

I have 23k on my car. I have A CAI cold air box, factory ported Tb, ported Intake and a Velossa ram air.
I have MBRP axle back.
Haven't had no issue or CEL since adding any bolt ons.
The the other day I got the CEL. Seems to drive fine. It goes away and then it the light comes back at different intervals of driving.
I took it to the dealer he run the codes and told me it was the p3400.
Said he cleared it said the cold air box (CAI brand) likely was the culprit. I called it Bull. I told him I have had it for over 20k of driving. He checked it again and said he couldn't get the code to come back after driving for over 50 miles.
So I took it home after 2 days but he didn't bill me.
Since then it came back the next day and continues to go away for a day or so then come back.
Not much when I search that is any help.
Anybody have any ideas in what I can do or look for???

[Dvs510]

Originally Posted by WhitesnakeSS

I have 23k on my car. I have A CAI cold air box, factory ported Tb, ported Intake and a Velossa ram air.
I have MBRP axle back.
Haven't had no issue or CEL since adding any bolt ons.
The the other day I got the CEL. Seems to drive fine. It goes away and then it the light comes back at different intervals of driving.
I took it to the dealer he run the codes and told me it was the p3400.
Said he cleared it said the cold air box (CAI brand) likely was the culprit. I called it Bull. I told him I have had it for over 20k of driving. He checked it again and said he couldn't get the code to come back after driving for over 50 miles.
So I took it home after 2 days but he didn't bill me.
Since then it came back the next day and continues to go away for a day or so then come back.
Not much when I search that is any help.
Anybody have any ideas in what I can do or look for???

Seen this topic before... low oil would b best case scenario.. Bad cylinder deactivation solenoid, loose or shorting wire in the harness in the solenoid area.. if its still under warranty I’d take it back in and talk to someone else. Maybe put ur stock air intake back on so they stop looking at that

[WhitesnakeSS]

Originally Posted by Dvs510

Seen this topic before... low oil would b best case scenario.. Bad cylinder deactivation solenoid, loose or shorting wire in the harness in the solenoid area.. if its still under warranty I’d take it back in and talk to someone else. Maybe put ur stock air intake back on so they stop looking at that

Thanks partner. I read that as well In my searches but what got me is why GM doesn't know that's.
He said my air box was messing up my MAP sensor. I haven't seen that anywhere as a issue with P3400.
That is what is the most confusing?

[Dvs510]

Originally Posted by WhitesnakeSS

Thanks partner. I read that as well In my searches but what got me is why GM doesn't know that's.
He said my air box was messing up my MAP sensor. I haven't seen that anywhere as a issue with P3400.
That is what is the most confusing?

If u still have the factory box I’d throw it on just so they can get that outa there head