doublecabmel

Ok, so I was reading the smog thread and guess what.... Yep, I replaced the battery and now I can't pass smog due to the codes. Let me see....

Drive the car over 2300 rpms for over 30 min, turn the car off, then do it again

chsu74

Just drive this twice

Start engine, let idle for approx. 2 min, 10 secs.

Accelerate to 20-30 MPH, Maintain steady speed for approx 3 min, 15 secs.

Accelerate to 40-60 MPH, Maintain steady speed for approx 15 mins.

Decelerate and come to a stop. Then:

Idle in Neutral for 5 mins. (manual trans.)

Idle in Drive for 5 mins. (Tiptronic trans.)

During the drive cycle, do not exceed 3,000 rpm or 60 mph.

https://rennlist.com/forums/993-foru...codes-fix.html

You can complete part of the drive cycle and then try to finish others. Hook the car up with an OBDII reader and it will tell you which codes have been reset live.

OverBoosted28

Cold start, idle 10-15 mins
Drive 2200 rpm for 8 miles
Drive 2500 rpm for 5 miles
Drive 1800 rpm for 8 miles
Allow to idle 3 mins
Dont exceed 2800 during drive cycle

badabing

You must let the engine cool completely between the 2 drive cycles.

I think I read at least 4 hrs somewhere.