That disengages power to the pump and all is ‘SAFE’. If you do not follow through and crank the engine, the power to energize the relay is terminated. Therefore, once you turn on the ignition to RUN, the relay is momentarily powered up and provided 12v to the fuel pump circuit in order to pressurize the fuel rail and injectors in preparation of engine starting. That is the correct function of the AUTO SHUTDOWN RELAY.ĭo we need a lesson on the operation of the ASD Relay? In short, it is designed to turn off power to the fuel pump circuit in case of an accident that causes the engine to quit running. Once the ignition switch is in the ON position and the engine is not being cranked or running, there should NOT be any power to the fuel pump or to the ignition coil and injectors. It should kick the pressure up from 0 to 50 just by that action. The bleed-down of the pressure regulator to 45lb should not be a concern, though the lack of any pressure showing on the gauge AS YOU TURN ON THE IGNITION TO THE ‘RUN’ POSITION does concern me. So it seems you are actually not a MOPAR experienced Technitian. The ASD relay aka: Auto Shutdown Relay is the term used in the Chrysler nomenclature. For all I know, you could have been working on MOPAR automobiles for 70 years. OK, here is the ‘Fly in the ointment’, TCMan89 tells me nothing as to who you are or any experience you have with these cars. Many of the people here have years of experience with these particular cars, and if you give US good information as to what you find, we can give you good feedback. If the SMEC sees any problems, it will set new codes you could read and report to us. You began thinking you needed to replace the engine controller, a complete “Out of left field remark”Īnd to answer your question above, NO, the codes will not come back but you can set new codes by leaving the battery continually connected, trying to start and possibly run the engine for a short time. How about giving us a ‘BLOW BY BLOW’ from the beginning, telling ALL what you did and in the order you did it. You have been feeding us ‘bits and pieces’ and now we have learned a little about what you and WE are up against. So you bought this car with a inoperable (that means “BROKEN” engine) is that correct?ĭid you personally replace the engine with another, YOU YOURSELF?Īre you a Certified mechanic or just a guy doing an engine swap on your own car?īefore buying this car, did you know anything about this particular car, engine and operating system? You sure could be more helpful for ALL of us who are ‘trying’ to help YOU! I've been trying to start car so would any codes come back? Yes car sat for 2 years and no battery was in it when I bought it.
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