diff --git a/content/projects/volkswagen-golf-iii-cabrio-1994/index.md b/content/projects/volkswagen-golf-iii-cabrio-1994/index.md
index eb7b5af..a799e44 100644
--- a/content/projects/volkswagen-golf-iii-cabrio-1994/index.md
+++ b/content/projects/volkswagen-golf-iii-cabrio-1994/index.md
@@ -43,6 +43,7 @@ Items marked with 🔧 are required to (safely) operate the vehicle.
  - [x] End muffler rusted and leaking; replaced 🔧
  - [x] Have exhaust checked during APK[^apk]; all good 🔧
  - [x] Replace front pipe (from manifold to catalytic converter)
+ - [ ] Oxygen/Lambda Sensor, `00525` No signal - Intermittent; probably need to replace the O2 sensor
 
 ### Engine and cooling
 
@@ -77,7 +78,7 @@ Items marked with 🔧 are required to (safely) operate the vehicle.
  - [x] Get a wheel alignment; done
  - [x] Replace outer tie rods
  - [x] Fix front wheel camber / get a proper wheel alignment; planned
- - [ ] Check what's up with ABS. It's not mandatory for a car of this vintage, but I'd be nice to figure out what's going on.
+ - [ ] Check what's up with ABS. It's not mandatory for a car of this vintage, but I'd be nice to figure out what's going on: `01276 ABS Hydrolic Pump (V64) signal outside specifications; might be a relay or wire, but most likely it needs a new ABS pump.
  - [ ] Replace rear wheel bearings and brake drums
 
 ### Bodywork
@@ -90,6 +91,7 @@ Items marked with 🔧 are required to (safely) operate the vehicle.
  - [ ] Check and repair rear electric windows; in progress, hard to reach 
  - [x] Align wipers correctly; re-aligned motor and wiper linkage
  - [x] Replace wipers 🔧
+ - [x] Fix wiper interval, it's not working; relay was loose, cleaned and re-installed.
  - [x] Check spring on hood locking mechanism; it's working okay
  - [x] Fix power steering; topped up power steering fluid
  - [x] Fix damaged light control height adjust; ordered a replacement unit
@@ -134,6 +136,12 @@ On 24 September I joined a group of biker co-workers on a road trip throught the
 Ardenne region. Keeping up with motorcycles in that mountainous terrain was a bit of a challenge,
 but the Golf performed perfectly for over 400 km of road trip.
 
+### Reading error codes
+
+This is a 1994 car. Volkswagen started shipping cars with OBD2 interfaces from 1995 onward. You can see this in your car: if your OBD connector is **black** it's a pre-ODB2 version, the **purple** connector indicates OBD2. 
+
+Luckily, with a cheap KKL-compatible USB cable and VCDS Lite (free shareware works for reading and clearing codes), I was able to read the Engine and ABS systems for error codes. 
+
 ### Gallery
 
 We all love pretty pictures...