Question about Dodge Daytona

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Hi there I have a 1989 Daytona that ran fine until on day it just sputtered to a stop as if it had run out of gas. Computer error codes were 44 (loss of FJ2 to logic board) and 42(auto shut down control fault) in that order. Unpowering and powering up the SMEC produces the same codes along with 12 that memory was lost. Putting a jumper to the +ve of the coil then shorting pin12 on the power module to ground doesn't produce a spark and there is no voltage on the coil +ve with the engine cranking. When power is on the coil positive the fuel pump runs fine although I don't know what pressure the pump is putting out. Just to eliminate the SMEC I bought a spare from a wrecker and it produces the same codes. I think my first need is to fix error code 44, but there is what I need to know first - where does the FJ2 voltage come from and what can I do to restore it to the SMEC? Any help will be gratefully received. Jon

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I believe that you may be dealing with a bum hall effect sensor located in the distributor. I can send you diagrams and testing procedures, but with no pulse voltage at the positive side of the coil, it is likely that the sensor has failed and the distributor needs to be replaced. feel free to email me for the diagrams and I will get those to you immediately. iambanshee74@yahoo.com

Posted on Sep 11, 2010

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