View Full Version : A4 1.8T - P0688 Won't Start (Replaced Coil Pack)

01-25-2015, 01:51 PM
Hello all,

Prior to replacing the coil pack connectors I was getting P0300, P0301, P0302, and P0303. While removing the connectors from the coil pack, the connectors broke off. I replaced the 2 connectors that broke off with new connectors but the wires do not match.

As removed from the plastic I connected each wire to the new connector but the car wont start. I also removed all coil packs and now the P0300s codes are gone but P0688 code is on and the car wont start.
here are some pics.



01-26-2015, 07:36 AM
Blown fuse #29.

Check for shorts or exposed wires in coil pack wiring harness.