As far as the temperature gauge, it sounds like there is a short to power. Do me a favor. I need you to test the oil switch. Here are the directions and the attached pic correlates with the directions. If you need help, let me know.
2003 Honda Truck CR-V 4WD L4-2.4L
Component Tests and General Diagnostics
Vehicle Powertrain Management Sensors and Switches - Powertrain Management Sensors and Switches - Computers and Control Systems Oil Pressure Sensor Testing and Inspection Component Tests and General Diagnostics
COMPONENT TESTS AND GENERAL DIAGNOSTICS
Oil Pressure Switch Test
1. Remove the YEL/RED wire (A) from the engine oil pressure switch (B).
2. Check for continuity between the positive terminal (c) and the engine (ground). There should be continuity with the engine stopped. There should be no continuity with the engine running.
3. If the switch fails to operate, check the engine oil level. If the engine oil level is OK, check the engine oil pressure. If the oil pressure is OK, replace the oil pressure switch.
Next, I need you to check for spark and fuel to the engine to help determine why it won't start. The easiest thing to do is see if it starts for a couple seconds using starting fluid. If it does and then stalls, then we know it's a fuel related issue. If it still doesn't, then it's likely ignition related.
If you feel uncomfortable using starting fluid, here are two links that explain how to check for both:
Let me know what you find.
Friday, May 22nd, 2020 AT 6:41 PM