2000 VW Passat 1.8T ATW FWD doesn't start Replace crankshaft sensor (near oil filter) Replace ignition relay (inside the computer box on the left side of computer. Back relay)
Did you replace the crank sender for a reason or just a best guess? Go through the standard tests. Does it crank? Yes/No Is the fuel pump running when cranking. (Its usually next to the fuel tank) There's a relay for this. Is there a spark at the plugs? Test with a new plug but don't hold the lead, the shock can kill. Use a short lead with 2 crocodile clips, one to the plug body and one to ground (Earth)on the engine. The injection system has a cold start relay which tells the ECU the extra fuel needed. Remove the easiest spark plug to get at and see if its wet or dry. If its wet there's likely a fuel supply. If its dry then not. Go through the basic checks or have a good diy'er help you and don't change things on a whim. Get a service manual or download the info off a website or owners forum. There are several sensors for intake temp, coolant temp, air temp, boost control(on a turbo) that affect the ECU. Determine you have the basic ingredients before buying new parts. You've already replaced 2 items without success.
Answers & Comments
Did you replace the crank sender for a reason or just a best guess?
Go through the standard tests.
Does it crank? Yes/No
Is the fuel pump running when cranking. (Its usually next to the fuel tank) There's a relay for this.
Is there a spark at the plugs? Test with a new plug but don't hold the lead, the shock can kill. Use a short lead with 2 crocodile clips, one to the plug body and one to ground (Earth)on the engine.
The injection system has a cold start relay which tells the ECU the extra fuel needed.
Remove the easiest spark plug to get at and see if its wet or dry.
If its wet there's likely a fuel supply. If its dry then not.
Go through the basic checks or have a good diy'er help you and don't change things on a whim. Get a service manual or download the info off a website or owners forum.
There are several sensors for intake temp, coolant temp, air temp, boost control(on a turbo) that affect the ECU. Determine you have the basic ingredients before buying new parts.
You've already replaced 2 items without success.