Test A: Step 8

8) Check SPOUT & PIP Circuits For Shorts  Turn key off and wait 10 seconds. With breakout box installed, disconnect ECA. Disconnect TFI module (on 2.3L Truck, disconnect DIS module pins No. 1-6). On 7.5L Truck, disconnect TFI and distributor Hall connector. Set DVOM on 200-k/ohm scale.

On SPOUT circuit, measure resistance between test pin No. 36 (SPOUT) and test pins No. 16, 20, 40, 46, and 60 for short to ground. Measure resistance between test pin No. 36 and test pins No. 26, 37 and 57 for short to power (VPWR). Measure resistance between test pins No. 36 and 56 for short to PIP.

On PIP circuit, measure resistance between test pin No. 56 (PIP) and test pins No. 16, 20, 40, 46, and 60 for short to ground. Measure the resistance between test pin No. 56 and test pins No. 26, 37 and 57 for short to power.

If any reading is less than 10 k/ohms, repair short in harness and repeat QUICK TEST. If engine still does not start, go to next step. If all readings are 10 k/ohms or more, go to next step.