Subject: Re: Installed Vanos yesterday Author: rajaieq as Rajaie (moderator) : 163 posts Posted on: 2008-04-28 17:33:57

When the MAF is disconnected the DME will likely utilize the throttle position sensor and a default table. It will likely err on enriching the air/fuel mix.

Thus your problem could be the MAF sensor or something else that enriching the mix camouflages, like a vacuum leak.

It might be best to have your car assessed with an analyzer that can read the embedded codes. The dealership can do this with the GT1 machine. Independent mechanics can also have a GT1 or an aftermarket system like Autologic.

You can acquire the fuel trim adjustment values with a high end OBDII system. But if these are off, it could still be the MAF senor or a vacuum leak.

You could replace your MAF sensor and see what happens, but this is an expensive venture.

Let us know what you eventually find.

Rajaie
528i 5sp 06/00

• Installed Vanos yesterday - girmis 2008-04-25 09:36:00 (457 views)
  • Re: Installed Vanos yesterday - girmis 2008-04-29 14:12:53 (229 views)
    • Re: Installed Vanos yesterday - Rajaie 2008-04-30 00:15:14 (211 views)
  • Re: Installed Vanos yesterday - Rajaie 2008-04-25 13:02:43 (236 views)
    • Re: Installed Vanos yesterday - girmis 2008-04-25 16:15:36 (197 views)
      • Re: Installed Vanos yesterday - Rajaie 2008-04-25 16:38:24 (187 views)
        • Re: Installed Vanos yesterday - girmis 2008-04-28 16:40:17 (171 views)
          • Re: Installed Vanos yesterday - Rajaie 2008-04-28 17:33:57 (189 views)
            • Re: Installed Vanos yesterday - girmis 2008-04-29 01:40:34 (223 views)
              • Re: Installed Vanos yesterday - girmis 2008-06-27 22:08:45 (116 views)