Engine code P0171 & P0174
#17
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Re: Engine code P0171 & P0174
Are you referring to the bleed valve? I don't see a purge in the diagram. So the upper solenoid near the TB should have one hose going to the manifold and then the hose from the shutoff valve goes to the other side? I'll check it when I get home, but I believe that there is a hose that goes from that solenoid to the bleed/purge? valve down below.
The purge/bleed valve/solenoid doesn't need a vacuum line.
#20
Re: Engine code P0171 & P0174
Yeah. It only has a line on one side, the other has a small looking valve on it. What line should be going to it, if the others go the solenoid. I'm pretty sure that it's hooked up wrong now, since one of the solenoid lines are running to that purhe valve.
#21
Re: Engine code P0171 & P0174
Ok,I did have one line hooked to the intake,but the other hose went to the purge valve.I now have one going to the intake and the other to the shutoff valve on the solenoid. The top going to the intake and the bottom to the shutoff valve.
Now I have the extra hose that went from the solenoid to the purge valve still attached to it,but the top of that hose is now unattached. Where does it go?
Also anyway to test that the shutoff valve is working without driving the car? I jumped the relay to turn it on,but not sure that would cause the shutoff valve to open or not.
Now I have the extra hose that went from the solenoid to the purge valve still attached to it,but the top of that hose is now unattached. Where does it go?
Also anyway to test that the shutoff valve is working without driving the car? I jumped the relay to turn it on,but not sure that would cause the shutoff valve to open or not.
#22
Re: Engine code P0171 & P0174
Yes, if bleed valve is open the air will flow out there, not go to the manifolds.
I went back and corrected it. Overlooked what I typed, while multi-tasking on 6 different projects at work. Recent study results:
1 - Multi-tasking is less productive the working one item at a time.
2 - When multi-tasking, the attention to the second task is equivalent to someone who is legally drunk.
3 - Multi-tasking damages brain cells.
I kid you not....
I went back and corrected it. Overlooked what I typed, while multi-tasking on 6 different projects at work. Recent study results:
1 - Multi-tasking is less productive the working one item at a time.
2 - When multi-tasking, the attention to the second task is equivalent to someone who is legally drunk.
3 - Multi-tasking damages brain cells.
I kid you not....
Last edited by Injuneer; 10-23-2014 at 05:18 PM.
#23
Re: Engine code P0171 & P0174
So where does that hose go? As of now the bleed valve has a hose hooked to it(that was hooked to the solenoid),but the other end isn't going anywhere. I don't see in the diagrams as to where this hose goes? I don't see if doing anything without any sort of input.Am I looking at this wrong? Thanks
#24
Re: Engine code P0171 & P0174
No. The bleed valve is part of the original installation on 96/97 models. The diagram that Shoebox has is intended to show the CHANGES that are part of the AIR pump recall. Nothing was changed for the bleed valve. The shutoff valve and the vacuum solenoid are the parts that were added.
Probably be a good idea to get the free download of the 1996 factory service manual, courtesy of GaryDoug, and look at the diagram on page 6E-911.
Probably be a good idea to get the free download of the 1996 factory service manual, courtesy of GaryDoug, and look at the diagram on page 6E-911.
#25
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Re: Engine code P0171 & P0174
Something is very confusing about all this. The bleed valve is supposed to connect to a T-fitting in the pump outlet hose but his car doesn't appear to have that. And I can't find any diagram or photo that shows the cutoff valve and the bleed valve both installed. They show one or the other only.
#26
Re: Engine code P0171 & P0174
I know I'm confused. Could it be that they just left the bleed valve on the car when the recall was done and it's not needed,since the shutoff valve is installed?
#28
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Re: Engine code P0171 & P0174
That's what I am thinking also. It looks like, in the "after" diagrams, it is missing. Wish we had the recall instructions.
#29
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Re: Engine code P0171 & P0174
OK I just found the recall instructions. They say to disconnect and discard the bleed valve. This was for a 96 but should be the same for 97. I will see if I can put it in a form that is easy to post and do that.
Here is the site: Pontiac Workshop Manuals > Firebird V8-350 5.7L VIN P SFI (1996) > Powertrain Management > Emission Control Systems > Air Injection > Air Injection Pump > Component Information > Technical Service Bulletins > Recalls for Air Injection Pump: > 99083 >
This link is for page 1 of the instructions. Click on "next page" for more.
Here is the site: Pontiac Workshop Manuals > Firebird V8-350 5.7L VIN P SFI (1996) > Powertrain Management > Emission Control Systems > Air Injection > Air Injection Pump > Component Information > Technical Service Bulletins > Recalls for Air Injection Pump: > 99083 >
This link is for page 1 of the instructions. Click on "next page" for more.
#30
Re: Engine code P0171 & P0174
That is AWESOME Gary.This was driving me nuts.Thank you very much.Page 4521,steps 9-11 is what I was looking for.
On page 4522,can you make out which hose goes where? I can determine if the shutoff valve goes to the top or bottom port of the solenoid. Right now,I have the intake going to the top port and the shutoff valve on the bottom port.
On page 4522,can you make out which hose goes where? I can determine if the shutoff valve goes to the top or bottom port of the solenoid. Right now,I have the intake going to the top port and the shutoff valve on the bottom port.