Quote:
Originally Posted by BYprodriver
The ECU reads that the engine is running lean beyond the ECU's capability to compenstate. Exhaust leaks is 1 of many possible causes.
|
How does the engine read a "lean run" condition from a leak aft of the metered section of exhaust? There is no O2 sensor on the mid-pipe/secondary cat. The only leak the ECU would have the ability to detect would be between where the manifold meets the exhaust port or an actual hole in the manifold/header. I cannot understand your assertion that the O2 sensors are capable of sensing anything downstream of their positions...