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Old 03-24-2010, 05:29 PM
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rkmengineering rkmengineering is offline
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2017 Titan Crew Cab
 
Join Date: Jan 2010
Posts: 135
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Hey Dark Earth

These are digital pulse pumps that do not require a return line. They are not the old style constant flow.

Spark Test? There is a way you can do it but I do not recommend it.

These modules are over $100 each. if you burn one out.

Plug in the OBDOII and turn on the ignition (do not start). Error codes should be embedded (ingrained was the old term) into the ecu and it should give you the codes or errors. (mine does). The engine does not have to be running.

With todays cars, I do not like to guess the diagnosis (see Challenger comment about being bit). Remember, your ecu has more computing power than the computers that got man to land on the moon!!!!

I have some ideas on what may be going on but I do not want to steer you in the wrong direction.

I have plenty of horror stories of friends who like to play mechanic and end up calling me when they F... it up, but it sounds to me like you know what you are doing and on the right track.
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