I recently moved out to the boonies and have to do the work on my own car and was hoping someone could help me out with some questions I have.

This is for a 1996 Z28

1. Can a cracked pvc pipe throw a check engine for bad oxygen sensors? AutoZone said I have bad sensors in Bank 2, but then after opening hood and looking around is when I noticed the pvc pipe... so wasnt sure if that would contribute.

2. If the pvc wouldnt throw an error on oxygen sensors, could someone explain exactly where the 4 sensors are? Figured if I was going to be under there, may as well replace them all. If anyone also has pics of these locations that would really help, as Im not very mechanical.

3. Where would I find the sensor for radiator fluid level?

Appreciate any help in advance.

 

it pcv. a leak in the pcv valve vacuum pipe would cause a high idle. look at number 19 on the list here 4th Gen LT1 F-Body Tech-Component Location Views the sensor s one and two are after the catalytic converters.

 

Well for starters those pics are small, plus that is for a 95 and my 96 I was told there are 4 sensors... 2 front and 2 rear.

Also I was told by a friend the broken hose/tube is for PCV, but then a guy at O'reillys auto parts said it was EGR... but EGR by pics I have found is at the rear of the engine. If someone could verify what part this actually is... its the black part and there is a hose/tube coming off the front and goes right behind the fuel line:

 

thats the air system. number 44 and 45 on that list. its part of the emissions system. so long as the exhaust is not coming out of the crack then your fine. the emissons will not work correctly so if you have to pass testing you will have to fix that. if no emissions testing you could take that off the exhaust and plug the hole.

 

Would it just be called an "emissions hose"

 

i believe its called a secondary air injection pipe.

 

Cool thats it, thanks man. Now I just have to find a new hose. Guess I will have to call up the dealer.