see anything wrong?

[Ceejkay]

So my check engine light burnt out so periodically i do an obd scan. since replacing the motor ive had an O2 sensor code that i havent gotten around to replacing. well i started up the truck today with the scanner and now no o2 sensor. The reason for the scan today is yesterday i was at a light for a good little bit and the light turned green and the truck fell on its face for about 3 seconds and then was normal. My brake booster is bad in my truck (makes a hissing noise like air brakes) could that be why i had that problem? Motor has 4k on it atm. FYI this is first start of the day and less than 5 mins of running.

 

[SunlitComet]

nothing out of the ordinary so far but your booster might have suddenly leak enough to cause a major vacuum loss.

 

[Ceejkay]

cool thanks, figured it looked good just want to check to see if the values were ok. im planning on getting the booster here shortly

 

[VicYukon]

The problem with your truck falling on your face it is because your breaks you'll have to replace the break pump I replaced mine about 8 months ago what I would do was put the ebreak once I would come to a stop on the light.

 

[foreverfalcon40]

Like stated above that Vacuum leak is the culprit!

 

[Ceejkay]

thats what i figured