Test NS-3A - Inspecting Mechanical Systems
WARNING: This page is about a different car, the 1995 Dodge Pickup and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION
. For wiring diagrams, see WIRING DIAGRAMS
section at the end of this article.
- Disconnect Manifold Absolute Pressure (MAP) sensor connector. Turn ignition on. Using scan tool in voltmeter mode, check voltage on MAP sensor connector, 5-volt supply circuit (Violet/White wire). If voltage is less than 4.5 volts, repair open Violet/White wire. Perform TEST VER-1.
- If voltage is more than 4.5 volts, reconnect MAP sensor connector. Remove all spark plugs. Inspect spark plug tips for wet fuel. If spark plug tips are wet, clean and reinstall spark plugs. If spark plug tips are not wet, reinstall spark plugs.
- Inspect spark plug cables for correct placement. Reposition cables as required. Perform TEST VER-1. If cables are okay, turn ignition off. Check valve timing. Repair valve timing as necessary. Perform TEST VER-1.
- If valve timing is okay, check engine compression. Repair engine as necessary. Perform TEST VER-1. If engine compression is okay, replace MAP sensor. Perform TEST VER-1.