Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

Results 1 to 2 of 2

Thread: 02 ESCALADE EXT 140K DTC p0200 & p0307 questions

  1. #1
    Ragtp66 is offline Cadillac Owners Member
    Automobile(s): 2002 Escalade EXT
    Join Date
    Feb 2014
    Age
    45
    Posts
    4

    02 ESCALADE EXT 140K DTC p0200 & p0307 questions

    I am getting codes p0307 and p0200. I know normally you would start with the highest dtc first P0307 would be cylinder misfire on cylinder #7 I dont visually see a broken plug wire or that it rubbed on anything. I will try wetting the wires and look for arcing and pull the plug. I am curious though as the P0200 I am thinking is more injector related which if it was dirty or shorted would throw the 200 and then also the p0307. I will try to ohm the injector and check with a noid light for pulses in the morning. It does have a stumble from idle when accelerating at idle feels like it may stall but hasnt yet. I will probably end up doing a full tuneup. Plugs wires fuel and air filters. I am thinking it may not be a bad idea to pull the injectors and have them sonic cleaned and flow tested. If anyone has any other suggestions please let me know.

    Thanks
    Chris


  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Join Date
    May 2014
    Posts
    2
    Swap plug/wire/coil. Swap inj. If problem moves address defective part. GM does not recommend Sonic clean.


Bookmarks

Cadillac Posting Rules

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Read about Lincoln | Buick | Kia Forte Forum