I've been having a surging/rough idle problem on my '01

I wouldn't mess with the MAF if I were you, shits delicate and expensive. Try a new O2 sensor. My Volvo has a fidgety one, on cold days when I'm starting up it cant decide whether more or less oxygen is needed, the tach bounces and engine sounds haggard for a bit. Throttle body and idle control were good places to start.

>>16019153
It's not spitting codes, and I just had one replaced

>>16019118
Replace the IAC if cleaning didn't work.

>>16019118
This may sound dumb, but have you checked your connections on your distributor cap and the wires to your plugs in general?

Had almost that exact problem and that's what it turned out to be. Didn't think about replacing em cause it didn't really make sense but sure as shit that's what fixed it

>>16020842
Shit it probably is the distributor or the wires. I'll have to look at it after work.

Thanks

>>16019118
My AW11 does this when the coolant is low.
Another issue could be clogged injectors.
O2 sensor is also very possible.

>>16019118
Soulds like failing ignition when warmed up. Check the ignition system coil/electronics

Sound dumbbut check the integrity of the vacuum hoses and their connections. Sounds even dumber but check how clean the fuel injector connector plugs are, and all ignition system related electrical connections.

>>16023111
>check how clean

I meant to type out check how clean and secure the fuel injector connectors are, i had a stumbly idle on my gs400 and i realized i accidentally unplugged a fuel injector and an ignition coil

Update:

I tested the spark plugs and it seems they are not getting enough voltage (orange spark). So I'm replacing the ignition coils. Hope this fixes it