blms

[87hottness]

My blms are high where do I start looking for the problem thanks for the help

 

[TurboDave]

How high? Under what conditions? your setup?

 

[earlbrown]

Crack in the driver side header between 1 and 3

 

[GNRick]

I would start by doing a search on the subject.

 

[Dreamcar86]

You can find this on vortex buicks. Here: http://www.vortexbuicks-etc.com/Scantool_Readings.htm

This is part of the article:

Again, if the fueling is spot on, then we will see 128 in all cells of the matrix. If we see the numbers closer to 150, then we know we have a problem and we should start looking for a problem due to a perceived leanness which is causing the ECM to add more fuel than would be expected. Problems could be in a number of places such as vacuum leaks, header leaks, a bad MAF, and so on.
If the number is closer to 100, then we know the system is running excessively rich and the ECM is reducing fuel trying to correct the problem, and once again, we know we have a potential problem that needs to be rectified and we look for problems that could make the car excessively rich.