Notices
GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

code p0449

Thread Tools
 
Search this Thread
 
Old 10-08-2009, 10:17 PM
  #51  
TECH Fanatic
 
454SuperSport's Avatar
 
Join Date: Jul 2002
Location: Millen, GA
Posts: 1,011
Likes: 0
Received 0 Likes on 0 Posts
Default

P0443 is for the purge valve circuit, the valve behind the throttle body. check the "PCM 1" fuse under the hood first. unplug the valve and check the pink wire for voltage with the ignition on. also check the pins in the connector and make sure there not bent. didn't you just replace it not too long ago?
Old 10-09-2009, 11:29 AM
  #52  
PT's Slowest Truck
iTrader: (19)
 
budhayes3's Avatar
 
Join Date: Apr 2004
Location: Hackensack, NJ
Posts: 17,863
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by 454SuperSport
P0443 is for the purge valve circuit, the valve behind the throttle body. check the "PCM 1" fuse under the hood first. unplug the valve and check the pink wire for voltage with the ignition on. also check the pins in the connector and make sure there not bent. didn't you just replace it not too long ago?
Crap, that changes everything, he said it was a small leak code, I believe that the purge valve has been replaced. I'd also inspect the connector and make sure that the wires aren't backed out of it since it was un-plugged to replace the purge valve.
Old 10-09-2009, 07:44 PM
  #53  
TECH Fanatic
Thread Starter
iTrader: (1)
 
Go5.3tt06's Avatar
 
Join Date: Aug 2008
Location: Buford, GA
Posts: 1,591
Likes: 0
Received 7 Likes on 7 Posts
Default

Originally Posted by 454SuperSport
P0443 is for the purge valve circuit, the valve behind the throttle body. check the "PCM 1" fuse under the hood first. unplug the valve and check the pink wire for voltage with the ignition on. also check the pins in the connector and make sure there not bent. didn't you just replace it not too long ago?
Hey man. I did check also. They are good. The purge valve is new about 2 weeks ago been replaced.
Old 10-09-2009, 08:14 PM
  #54  
TECH Fanatic
 
454SuperSport's Avatar
 
Join Date: Jul 2002
Location: Millen, GA
Posts: 1,011
Likes: 0
Received 0 Likes on 0 Posts
Default

You still got the old one? swap them out and see if it works.
Old 10-10-2009, 09:57 AM
  #55  
TECH Fanatic
Thread Starter
iTrader: (1)
 
Go5.3tt06's Avatar
 
Join Date: Aug 2008
Location: Buford, GA
Posts: 1,591
Likes: 0
Received 7 Likes on 7 Posts
Default

Originally Posted by 454SuperSport
You still got the old one? swap them out and see if it works.
Yes still have it. I will try. But been 2 days no light back on so far.
Old 10-10-2009, 03:25 PM
  #56  
PT's Slowest Truck
iTrader: (19)
 
budhayes3's Avatar
 
Join Date: Apr 2004
Location: Hackensack, NJ
Posts: 17,863
Likes: 0
Received 2 Likes on 2 Posts
Default

I'd still check the wires going to the purge solenoid just to make sure that there isn't a wire that's half in and half out of the connector, giving you an intermittent problem, only takes a second to look Funny how you got a code for the purge valve circuit after the purge valve was replaced.
Old 10-11-2009, 11:21 AM
  #57  
TECH Fanatic
Thread Starter
iTrader: (1)
 
Go5.3tt06's Avatar
 
Join Date: Aug 2008
Location: Buford, GA
Posts: 1,591
Likes: 0
Received 7 Likes on 7 Posts
Default

This morning the engine light come back on. I getting really tired of this and get me pissed off. Cuz I been paid from what shop do the inspection for.

The code SHOW is P0442
EVAPORATIVE EMISSION SYSTEM LEAK DETECTED (SMALL LEAK)
Tell me where it cause and why they do that? I really want to get all off the code. I been check everything it look so good nothing damage. I dont know what is come from.
Old 10-11-2009, 12:06 PM
  #58  
PT's Slowest Truck
iTrader: (19)
 
budhayes3's Avatar
 
Join Date: Apr 2004
Location: Hackensack, NJ
Posts: 17,863
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by go5.3tt06
this morning the engine light come back on. I getting really tired of this and get me pissed off. Cuz i been paid from what shop do the inspection for.

The code show is p0442
evaporative emission system leak detected (small leak)
tell me where it cause and why they do that? I really want to get all off the code. I been check everything it look so good nothing damage. I dont know what is come from.
unfortunately, if you can't see anything physically, and everything is tight, it probably requires test equipment such as a mild air pump, scan tool, and possibly a smoke machine (don't try pumping compressed air into your gas tank or you will blow out the pressure sensor on top of the gas tank and be dropping the tank to replace one of those).
......
Old 10-11-2009, 05:35 PM
  #59  
TECH Fanatic
Thread Starter
iTrader: (1)
 
Go5.3tt06's Avatar
 
Join Date: Aug 2008
Location: Buford, GA
Posts: 1,591
Likes: 0
Received 7 Likes on 7 Posts
Default

Lets see what I been doing today. Want you see careful what I been had done. I already replace new purge valve, new design with Evap Vent Valve Cansitors with small filter box. Run with some 5/8 heater hoses too. I test all electric connect the wires. They are good connect. I did use ligh tester with alll of wires and fuse box too. Itis all good. I dont know why the engine light come back say Code P0442. I might fedd up and take to bitch dealership let them do it.


Name:  CIMG2274.jpg
Views: 1170
Size:  198.2 KB

Name:  CIMG2273.jpg
Views: 1182
Size:  128.2 KB

Name:  CIMG2271.jpg
Views: 1293
Size:  140.6 KB

Name:  CIMG2272.jpg
Views: 3374
Size:  114.1 KB

Name:  CIMG2276.jpg
Views: 1428
Size:  114.4 KB
Old 10-11-2009, 10:28 PM
  #60  
TECH Fanatic
 
454SuperSport's Avatar
 
Join Date: Jul 2002
Location: Millen, GA
Posts: 1,011
Likes: 0
Received 0 Likes on 0 Posts
Default

those hose clamps on the new vent valve look loose also check the little green screw-on cap above the throttle body


Quick Reply: code p0449



All times are GMT -5. The time now is 05:20 AM.