Hi just finished overhaul rebuild of 1990 3.0 v6. Runs great till set code 52, then no power. I purchased new knocksensor and pigtail harness, plug into wire harness shows 2 pins, one gets good ground to engine, assume this is the shielding ground, the other has about 3.5 ohms res to terminal on computer. I tried to attach new knock senser to bolt in intake and plugged into computer harness, still set code. Hate to take apart entire intake unless I feel this is the problem. Any suggestions? Thanks, Bob

 

Read over this and see if it answers any of your questions:

https://www.yotatech.com/forums/f116...al-fix-211252/