20 Most Recent 2009 Audi A4 - Page 7 Questions & Answers

Hi Regina, Its hard to say with limited information but I can give you other suggestions that might help. There is the crankshaft senor, high pressure fuel pump, or bad injectors. I would like to know if it cranks. If it does then the sensor isn't the problem and the other two suggestions might be the cause. If all else fails take it to a certified mechanic to diagnose the car before you continue. Hope this helps and good luck!

Check this website you find there fuse box diagram and description for Audi A4 A4 CARKNOWLEDGE

Check this website you find there fuse box diagram and description for Audi S4 S4 CARKNOWLEDGE

Kwp is a protocol of communication between diagnostic and ecu

Unfortunately coding major parts to a car usually involves the dreaded and expensive trip to a dealership to be plugged into there diagnostic system.

You should check out www.reliable-store.com they have info on repair, service, wiring diagram, electrical diagram, fuse diagram, troubleshooting, PCV, owner's/service/repair/parts manual, fault codes, error codes, etc everything on all vehicles. must check it out

You should check out www.reliable-store.com they have info on repair, service, wiring diagram, electrical diagram, fuse diagram, troubleshooting, PCV, owner's/service/repair/parts manual, fault codes, error codes, etc everything on all vehicles. must check it out

Wiring, schematic, electrical diagrams, fuse diag, error codes, torque settings etc are basic contents of these online books they have here on this website www.reliable-store.com I have attached. Must check it out

If you're comfy with manuals then i know few websites that can help you with it. Bcause I've bought it from various websites so I know how each site deals. try www.reliable-store.com Very helpful

I suggest you get one of those manuals people get nowadays to do it yourself.. My brother uses it to repair my car and it's totally repaired now. he got it from. www.reliable-store.com