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magnum transplant ?? #1821531 05/08/15 12:58 AM 05/08/15 12:58 AM
Joined: Oct 2011 Posts: 189 mn F flyman OP member
flyman OP member F Joined: Oct 2011 Posts: 189 mn	So I put a 1993 Dakota motor into my 1957 Dodge pickup. It is now running sort of! It will start and run a few seconds and then the engine starts sounding like it is slowing down and then it will die. It will not start again unless it sits for a few minutes It is a modded wiring harness done like the info I found here on the board. I have plenty of fuel pressure and a good spark at all times. Any Ideas?? Thanks moparts!!!

Re: magnum transplant ?? [Re: flyman] #1821545 05/08/15 01:10 AM 05/08/15 01:10 AM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	What are the error codes? They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: magnum transplant ?? [Re: Supercuda] #1822485 05/09/15 09:29 AM 05/09/15 09:29 AM
Joined: Oct 2011 Posts: 189 mn F flyman OP member
flyman OP member F Joined: Oct 2011 Posts: 189 mn	The only codes it is reading are unrelated to the issue that I am having??

Re: magnum transplant ?? [Re: flyman] #1822573 05/09/15 12:09 PM 05/09/15 12:09 PM
Joined: Mar 2003 Posts: 18,678 Fresno, CA Jim_Lusk I Live Here
Jim_Lusk I Live Here Joined: Mar 2003 Posts: 18,678 Fresno, CA	It sounds like it doesn't like going into closed-loop mode. How much exhaust is behind the O2 sensor?

Re: magnum transplant ?? [Re: Jim_Lusk] #1822626 05/09/15 01:26 PM 05/09/15 01:26 PM
Joined: Oct 2011 Posts: 189 mn F flyman OP member
flyman OP member F Joined: Oct 2011 Posts: 189 mn	There is a muffler and a short tailpipe.

Re: magnum transplant ?? [Re: flyman] #1822729 05/09/15 03:40 PM 05/09/15 03:40 PM
Joined: Mar 2003 Posts: 18,678 Fresno, CA Jim_Lusk I Live Here
Jim_Lusk I Live Here Joined: Mar 2003 Posts: 18,678 Fresno, CA	An ODBI should be able to live without a catalytic converter (OBDII would require, at least, a cheater for the downstream O2). Put a scan tool on it and see the live data. Might tell you something.

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