Filled up my tank tonight and went for a drive to see what my mpg are. Was on the freeway tonight for 20 minutes when the code 32 popped up. I've been reading that 32 will pop up during long cruises.

My question is why does it happen on long cruises and not in town? I've never had a 32 in this car until now. In fact I haven't thrown a code since I borrowed my friends ECM. But tonight it did.

Should I seafoam this bitch or hook up water to a vacuum line in the motor and get as much carbon out as possible? Again, I've had no issues whatsover before tonight with the EGR, and tonight was the first night I actually took this thing on a long constant mph drive.