Symptoms of a cracked manifold?

**Fink_tha_Audi** · 02-15-2009 04:48 PM

Lately I have been able to smell an exhaust odor in the engine bay, and it usually stronger than normal, I've checked for leaks where the compressor housing and cat meet, but I can't find any. Oh yea, I have a Labree HFC, if that would help anyone with my problem so what could it be?

**20vpower** · 02-15-2009 10:41 PM

Sounds and smells like a muscle car

**Fink_tha_Audi** · 02-16-2009 01:31 PM

Originally Posted by 20vpower

Sounds and smells like a muscle car

No, not so much the sound, and little bit of the smell

**sean1.8t** · 02-16-2009 01:46 PM

your boost threshold would be higher than normal. as in, you would take longer to hit your desired boost

here's a trick:

on a cold start up(cold manifold and car idles at ~1200rpm), turn the car on and feel your hand all around the manifold, turbo, and cat. if you feel any air pulsing out, then you know your problem

**mike-2ptzero** · 02-16-2009 02:27 PM

AFR readings at WOT will be leaner then normal and fuel trim readings on 032 will show that the ecu is adding more fuel at idle/part throttle which will in turn make the car run richer then it should be and give you that rich fuel smell at the tail pipe.