Exhaust Manifold leaking installing wideband?

[talontsiboy24]

What is the best way to tell if the exhaust manifold gasket is leaking? my turbo to manifold is missing one bolt out of the 4 so is that a leak?

is it ok to install my aem wideband even though i have a exhaust leak? i know it will read incorrect but i wanna at least install it...will the leak mess the sensor up or do damage?

 

[95blackGsTurbo]

If it is missing a bolt just replace it. There is no reason to try and run the car with missing parts when it can be fixed for ~$1.00. To check it for leaks spray soapy water around the manifold on a cold start and see if air is escaping. Usually you can hear the leak. And wait to install anything until all of your problems are fixed.

 

[LiquidX]

To answer your question an exhaust leak will not destroy the sensor. It will give you the wrong readings however but you can go and install the sensor.

As Adam said, replace the bolt. Any leak is a bad leak no matter how big or small.

 

[DSM_PWR]

Also..

If you cant hear or see the leak... sometimes you can feel around for air coming out, try it upon a cold start up so you wont get burned as easily

 

[tsitalon03]

Or just seafoam the car.

 

[talontsiboy24]

I heard a exhaust leak before the sensor will cause my air fuel ratios to be leaner not rich?

 

[El Cuervo]

Best way that i found to locate exhaust leaks from the down pipe to manifold is to simply use seafoam through a vacume port on the IM or tb.

 

[2gGSX]

I heard a exhaust leak before the sensor will cause my air fuel ratios to be leaner not rich?

In my experience, this is only the case in very large leaks which can actually draw air in. I'm talking about downpipe hanging off O2 housing type "leaks".