1990 Bus

I recently started a The Volkswagen Repair Blog as part of the 30 Day Challenge. The blog is showing up on the first page of Google when searching for Volkswagen Repair. Based on my research there are people who are looking for answers and most likely not getting them. In fact, a couple of people have left comments who sound like they need help. What do you make of these comments:

1990 van 2wd stopped in driveway after starting and starting to back up the starting and running at this time was smooth but i went ahead and replaced the cap roter wiers air filter coil no help still cant get it to do any thing when its rurnning over i can at different attemps smell the fuel comeing out the tail pipe and it has a good spark to the eye this model doesnt have a timeing belt but it does have a ignition modual or possable the problem could be in the fuel injecters but this is unfermilar teritory to me plese advise

And the second: I have a 2001 Volkswagen Jetta w/51,000 miles, I heard a rattling noise under the hood and the check engine light is on, the car failed the vehicle inspection for the following codes: PO171 System too Lean (Bank1) & PO102 Mass or Volume Air Flow Circuit Low Input, the VW Dealership said the Secondary Air hose is broken, the mass air flow meter is faulty & the tech noted secondary air pump brackets are broken and the repairs would cost $930. I am a little old lady, can you shed some light on this. This seems like a manufacturing problem more than one of wear & tear. Please help me. Thank you.

I'm sure these people would appreciate the collective support. Your input is appreciated.

All the best!

Garth

P.S. Feel free to drop by and see the blog so far - it's been up about

4 days...