Thread: PO171 case help

Page 2 of 2 FirstFirst 12
Results 21 to 22 of 22
  1. #21 Re: PO171 case help 
    SE Level Member
    Join Date
    May 2016
    Location
    PA
    Posts
    73
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    BTW,
    1. I forgot to mention that as soon as I connect the sensor to the PCM (while scope connected), It's voltage gets cut in half or more.
    2. The brake booster check valve in GM cars is different from what they call a "universal" valve in almost all store (for about $6-12), get the AC Delco bigger one ($20-35). See pics below, black is OEM while white is cheap napa universal one. The vacuum hose that comes from the manifold to the booster is about double the size on the white valve.
    3. Attached are pics for the final O2 sensor simulator circuit.






    Reply With Quote  
     

  2. #22 Re: PO171 case help 
    SE Level Member
    Join Date
    Nov 2021
    Location
    Reading, PA
    Posts
    11
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I don't have anything to add, but would love to know whereabouts you are. I'd love to have someone like you, to help with the electrical stuff!
    Reply With Quote  
     

Page 2 of 2 FirstFirst 12

Similar Threads

  1. '02 GT Coupe PO171 Code
    By gtonut1 in forum Introductions/Noob Questions
    Replies: 3
    Last Post: 12-01-2016, 10:41 PM
  2. PO171 Found!
    By 02grandprix in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 3
    Last Post: 04-10-2014, 05:59 AM
  3. po171
    By 01GrandPrixTURBOGT in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 22
    Last Post: 06-26-2013, 10:33 AM
  4. trouble code po171 bank 1
    By peter in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 6
    Last Post: 08-12-2012, 01:21 PM
  5. po171 under heavy throttle
    By nascartech in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 8
    Last Post: 07-23-2010, 01:26 PM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •