Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

All Questions

Tagged with
0
votes
1answer
72 views

Number of diesel injections per revolution

A modern TDI using a piezoelectric injector may have up to as much as five injections per power stroke as far as I've read. Given a four stroke, four cylinder TDI engine using injectors of that type, ...
3
votes
2answers
3k views

VW (Bosch) TDI injection pump fuel shut off solenoid functions

The Bosch diesel injection pumps used by VW in their ALH TDI engines have a fuel shutoff solenoid (N109) which is supposed to cut off fuel to the engine. The engine has been setting a DTC 17946 - ...
5
votes
2answers
2k views

Turbo Failure Modes (VW TDI VNT15)

The turbo output in our 2002 VW Jetta TDI has dropped way off. Pulling the turbo out seems like a serious piece of work, so I'd like to be pretty confident that it has failed before I pull it. So I'm ...
2
votes
1answer
392 views

Egr valve cleaning (2.0Tdi 2005)

I would like to give my cars egr valve a good cleaning. I have seen a few YouTube videos and they can get fairly caked up. Would it be recommended to clean it by submerging it in petrol for a few ...
3
votes
0answers
451 views

Meaning of P0245 (16629) DTC on VW ALH TDI Engine

I'm seeing a P0245/16629 – Solenoid Valve (A) for Boost Pressure Control (N75): Short to Ground – code on our 2002 ALH TDI. The solenoid valve controls the boost by moving the vacuum actuator that ...
2
votes
0answers
1k views

Troubleshooting Smoking Diesel (2002 VW ALH TDI)

Our 2002 TDI has started surging at idle – especially in gear after a cold start, it seems to get better as the car warms up – and smoking (mostly HB's, vile habit). This has been going on for about a ...
4
votes
3answers
18k views

2008 VW Golf - no ignition lights on dash

I have a 2008 Golf 2.0 TDi GT with no ignition lights on the dash. I put the key in the switch and turned but nothing happened. The battery is fully charged, the key fob has a new battery and locks/...
12
votes
6answers
77k views

Is it normal for the oil to be dark in color right after an “oil change” in a 10-year old diesel car?

I took my 2002 Jetta TDI wagon to a neighborhood shop about 10 miles, 24 hours ago. They supposedly changed the oil, but the color is very dark, almost black. Definitely not light-colored/transparent. ...
3
votes
4answers
65k views

What is causing air in my fuel line?

I have a 2003 Jetta TDI. I drove it last night with no problem. This morning I cannot start the car. I popped the hood, and discovered air in the fuel line between the fuel filter and injection ...