2014 st. I took intake manifold off just to simply see valves and when i put it back together i got an engine fault msg, a very rough idle, and limp mode. Please help.
I un did and re did it all, gonna fire it up here in a min n see what happens. And thanks.Triple check the throttle body connector, It is easy to miss and can come loose if not clipped in. I recently cleaned my intake valves and had this same issue at 1:30 in the morning. It was the throttle body connector. Also verify all vacuum hoses are connected.
And...Welcome to the forum!
Just hit 95k miles. Everything was fine, runnin good no issues priorStrange, how many miles on it? Could be the throttle body is stuck and needs to be cleaned. Many things it could be. Do you have something to check the codes? There are a bunch of guys on here who know more than me, hopefully they chime in.
Tell us what codes you have. Knowing this will make a big difference.Just hit 95k miles. Everything was fine, runnin good no issues prior
I cant find my code reader, idk where tf it isTell us what codes you have. Knowing this will make a big difference.
Still sounds like something got damaged from cracking that thing open unfortunately.
When I did a series of mods on my car, as soon as I turned it on I got a CEL and some awful throttle response. Fortunately, I had a scanner so I pulled the code and was able to sort out the diagnostics steps from using forum posts here.
Turned out that a connector I thought was connected wasn't really connected. Unplugged it and replugged it and it STILL wouldn't work. Turns out I just didn't get it to clamp together enough and on the fourth try, it snapped together. Had to reset the ECU but once I did, all was well again.