Exhaust Leak and BLM Question?
#1
Exhaust Leak and BLM Question?
Guys,
Still chasing down my split blm issues and just wanted to ask a quick question. I recently replaced my header gaskets and retorqued all my header bolts and used stage 8 locking ones to make sure they don't go anywhere. My y-pipe collector gasets look fine but I might have a slight leak (not 100% sure) on the pass side. Question could a small leak in the collector gaskets cause a false lean? I would think not as they are past/down stream from the O2's is this correct. If not then I am going to check the pass side primary again and go over the entire header for holes. Thanks.
Still chasing down my split blm issues and just wanted to ask a quick question. I recently replaced my header gaskets and retorqued all my header bolts and used stage 8 locking ones to make sure they don't go anywhere. My y-pipe collector gasets look fine but I might have a slight leak (not 100% sure) on the pass side. Question could a small leak in the collector gaskets cause a false lean? I would think not as they are past/down stream from the O2's is this correct. If not then I am going to check the pass side primary again and go over the entire header for holes. Thanks.
#2
12 Second Club
iTrader: (11)
Depends how close they are to the 02s. I've read that even downstream leaks a certain length downstream can still trick the 02s. I was having a hell of a time with split BLMs with the stock PCM. Check your header gaskets again, I thought I didn't have any leaks and when i pulled the motor I saw some visible leaks I couldn't see from the engine bay or from below the car.
#3
Depends how close they are to the 02s. I've read that even downstream leaks a certain length downstream can still trick the 02s. I was having a hell of a time with split BLMs with the stock PCM. Check your header gaskets again, I thought I didn't have any leaks and when i pulled the motor I saw some visible leaks I couldn't see from the engine bay or from below the car.