'07 Ultra classis w/ PV . 1 day running good as usual. Next day on way to work started coughing & sputtring. Wants to die at idle. Pulled codes on O2's rich, and U1016 loss ECM data? Any ideas where to start? Thanks in advance.

 

Fuel injected????
Check the fuel regulator assembly. Mine cracked going down the road and everything went to crap! Started backfiring, coughing, sputtering and so on. There's 3 pieces to it, about $70 in parts......

 

thanx robertd

 

Clean the IAC orifice inside the throttle body. It gets dirty and causes the motor to idle poorly.

 

replaced fuel filter, regulator, and both inside lines plus check valve.
It ran great on restart for about 2 min. then started coughing and sputtering again. no codes, changed plugs. going sunday for brake clean to spray IAC.
other than that I'm stumped, please help

 

When you spray the IAC turn your ignition on and cycle it with the run/stop switch while spraying. Put the tube into the IAC orifice. Almost guarantee this will fix your problem.

 

If that doesn't work look at your Crank Position Sensor.

 

You can also rule out the PV/tuner...disconnect and see if it still runs like crap.

 

Its a Power Vision, not a Power Commander

 

There, better...