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Hi Dennis
The light is warning you that there is a problem with the Engine management system, I cannot and no one else online can tell you what the problem is. But I can advise you to take your car to a workshop and have it scan, the technician will tell you.
The reasons are follows:
- Contaminated fuel.
- Knock sensor poor performance.
- Check exhaust system. If clogged, remove or replace the honey comb porcelain.
- Check ignition timing with scan tool at idle speed. (5 - 8 degrees BTDC).
- Check engine oil level. If the oil level is low, it may be one of the reasons for knocking, because oil may be burning during the combustion.
- Check fuel pump pressure. ( 41 - 49 psi).
- Remove negative battery terminal for 5 Sec or more. Reconnect the terminal. Close all doors, remove all electrical loads like room light, parking lights, blower motor etc. Start the engine and hold the throttle at 3000 rpm till the radiator fan becomes on to complete the idle speed relearn process. Release accelerator pedal after the radiator fan becomes on, and let it idle for 7 min more.
- Switch off the engine for 3 sec and you can then start and drive the car comfortably.
Hope that works.
I've had the same type problems before and it turned out to be caused by my weakening alternator, if able to do so I would suggest, to begin ruling out causes, remove the alternator and take it to an auto parts store that offers free testing and have the test performed.
sounds like wireing is shorted together. you need to trace down wires and check for bad spots in wireing. also be sure and check plug if you are set up for trailer lights.
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