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Newbie Forum: Beginner/newbie/general DSM modification questions. First mods, how to run 10's when you haven't run 12's yet, any tech question that doesn't fit in another tech forum. Probationary Members must limit their tech posts to this forum and sub-forums.

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Old 02-24-2012, 11:45 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #1 (permalink)
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From: Fayetteville, Arkansas
Registered: Dec 2011
Tech Posts: 38
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Reputation: ThetanuRucka is an unknown

no start all sensors are looking weird in link


i was wiring in a new cig lighter.. idk what happened but i think one of the wires from a plug in the center console(sits right below the ashtray). hit something and shorted. because i saw the sparks and then smoke came from behind the radio area. i was like ####. pulled the ecu out and check it real quick. no smoke or burns or anything.. okay good. finished wiring my cig lighter in. all good
go to start.... nothing.
cranks and cranks and cranks i smell the fuel.
pull the laptop up. with dsmlink logging key on its got my throttle at 100% my coolant temp at -74 my intake temp at -74 my wideband logged afr at 7.4
basically any sensor that it reads is maxxed out either low side or high side.
so i assume its dumping fuel becaue tps+temperature and it cant start. but. wtf.... i checked all my fuses and they were okay. is there some major fuse or sumthing that is inline with all the sensors?...



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Old 02-24-2012, 11:58 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #2 (permalink)
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From: Stayton, Oregon
Registered: Mar 2005
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Reputation: EagleTSIawd is more helpful than not
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Sounds like you blew the ECU ground, its an easy fix.

Check this link out to see if you did blow it and how to fix it
http://www.ecmtuning.com/wiki/blownsensorground?s=ecu%20ground
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Old 02-25-2012, 12:07 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #3 (permalink)
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From: Fayetteville, Arkansas
Registered: Dec 2011
Tech Posts: 38
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Reputation: ThetanuRucka is an unknown
found the problem...
Blown Sensor ground. i take it i just solder in a small peice of copper wire over where it blew? and just bridge the once side back with the other?
i think the wire it rubbed shared a common power or ground with my WB02 gauge and the datalogger wire. probably popped it.

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Old 02-25-2012, 12:15 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #4 (permalink)
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From: Stayton, Oregon
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Yup, that should do the trick. If its not blown too far apart, just a dab of solder on the crack would also work.

If you short any sensor with the ignition on, that's usually the end result.
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Old 02-25-2012, 12:20 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #5 (permalink)
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From: Fayetteville, Arkansas
Registered: Dec 2011
Tech Posts: 38
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Reputation: ThetanuRucka is an unknown
yeah its just a hair crack. where do i buy that copper wire and what gauge is it?

again i find my answer lol. Coaxial cable copper wire. lol. PERFECT gauge,

Last edited by ThetanuRucka; 02-25-2012 at 12:32 AM. Reason: Auto-merged with previous post to prevent "bumping" within a 24 hour period Tips on avoiding the auto-merge feature - http://www.dsmtuners.com/forums/faq.php?faq=vb_faq#faq_bumping

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