Dickinson County Comanche Posted October 15 Author Share Posted October 15 I got 0 ohms on both sides of the plug (truck plug & sensor plug) Link to comment Share on other sites More sharing options...
Ωhm Posted October 15 Share Posted October 15 I misled you. Check at the sensor. Didn't realize drawing was for vehicle harness side. Link to comment Share on other sites More sharing options...
Dickinson County Comanche Posted October 15 Author Share Posted October 15 8 minutes ago, Ωhm said: I misled you. Check at the sensor. Didn't realize drawing was for vehicle harness side. Both sensor and truck were 0 ohms. So sensor is defective but is that ohms for the truck normal or do I also have a fault there? Link to comment Share on other sites More sharing options...
Ωhm Posted October 15 Share Posted October 15 Truck side. "A" would have battery voltage with KEY ON. "B" will go to ground. Link to comment Share on other sites More sharing options...
Dickinson County Comanche Posted October 15 Author Share Posted October 15 14 minutes ago, Ωhm said: Truck side. "A" would have battery voltage with KEY ON. "B" will go to ground. I have voltage on both A & B, C is ground. Link to comment Share on other sites More sharing options...
Ωhm Posted October 15 Share Posted October 15 Interesting. I'm using the 88 Electrical Manual. Maybe things changed. Odd. Link to comment Share on other sites More sharing options...
Dickinson County Comanche Posted October 15 Author Share Posted October 15 87-90 share the same part number for the sensor Link to comment Share on other sites More sharing options...
Ωhm Posted October 16 Share Posted October 16 Schematic callout may be wrong. Not the first time I've seen this. Link to comment Share on other sites More sharing options...
Dickinson County Comanche Posted October 16 Author Share Posted October 16 45 minutes ago, Ωhm said: Schematic callout may be wrong. Not the first time I've seen this. I’m getting a nice multimeter to check for certain. I also have a 1989 electrical book so I’ll check in it as well Link to comment Share on other sites More sharing options...
Ωhm Posted October 16 Share Posted October 16 8 minutes ago, Dickinson County Comanche said: I’m getting a nice multimeter to check for certain. I also have a 1989 electrical book so I’ll check in it as well Thanks for this follow up. Link to comment Share on other sites More sharing options...
Dickinson County Comanche Posted October 16 Author Share Posted October 16 50 minutes ago, Ωhm said: Thanks for this follow up. So I looked in my book and it shows the same thing. I couldn’t get the multimeter I bought to work (genius who designed it made the probes about 1/16” long so they’re impossible to get any sort of accurate measurement from a plug) so I’m just going to look at replacing the coolant sensor, intake manifold gasket (pretty sure it’s leaking) and the O2 sensor and check back. On the way back home, it acted up really bad again. Would immediately die when given any throttle from idle and it would only start when at WOT and it would studder for a split second after running. Then 30s later it was almost back to normal. I’m so confused. Link to comment Share on other sites More sharing options...
Dickinson County Comanche Posted November 2 Author Share Posted November 2 Solved: after installing a new O2 and coolant sensor, it has seemingly vanished. Running better than before now as it also solved my idle circuit problems. IMG_0676.MOV Link to comment Share on other sites More sharing options...
Ωhm Posted November 2 Share Posted November 2 Link to comment Share on other sites More sharing options...
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