Car Misfiring

[Pal318is]

I replaced my starter motor yesterday. However after putting everything back together and starting the car up, it is now misfiring and chugging along quite horribly
What's the most likely reason for this? Air hose? I took the whole of the inlet off, both parts while doing this.. And made sure it was put back on properly and securely..
I'm going to take it all apart again today and have a look, as prior to replacing the starter motor it ran perfectly..

[redcar]

Probably an air leak/unconnected hose/unconnected wire?

Is the blue coolant temp sensor, TPS and AFM all connected. Did the intake boot seat on to the throttle body correctly?

[Pal318is]

Everything was connected bud, however I've just taken the afm etc off and realized I didn't tighten most of the inlet bolts up muppet..hope this is what it is..

[Pal318is]

Yes i'm a muppet

[Barx325i]

I did a heater plate bypass the other week, ran like a poo when back together, turns out a breather had popped off during the struggle

[Pal318is]

I did a heater plate bypass the other week, ran like a poo when back together, turns out a breather had popped off during the struggle

Felt like a right idiot, once i'd seen my error