Pyrometer neddle jumping around and its Brand new??? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 7 (permalink) Old 03-20-2010, 03:51 AM Thread Starter
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Pyrometer neddle jumping around and its Brand new???

I bought a brand new autometer gauge and the needle will work fine at idle but when just cruzing it will flutter then got to zero then about 2000 rpms it will come back on then u drop below 1800-2000 rmps it flutters then goes to zero let off he gass needle goes to to 600 like the gauge works great then u go to get back on it and it will go to zero???Then u stab it goes 1000+ like it should..What do u guys think power problem or ground or just a bad gauge?

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post #2 of 7 (permalink) Old 03-20-2010, 04:38 AM
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Re: Pyrometer neddle jumping around and its Brand new???

check all the connections. my boost gauge did that for a while, then I would honk the trainhorn and it worked fine. turned out to be a bad connection

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post #3 of 7 (permalink) Old 03-20-2010, 04:48 AM
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Re: Pyrometer neddle jumping around and its Brand new???

Poor engine ground can cause this...........but if its like the two other z-series I have had the gauge is sh!t.

Try adding a temporary jumper wire from engine to battery to see if it fixes it first.
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post #4 of 7 (permalink) Old 03-20-2010, 04:50 AM
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Re: Pyrometer neddle jumping around and its Brand new???

Mine does this. For me it is the wire going to the probe. Ill hit a bump and it will work. Isspro said I should take it all apart clean it and wrap the connections. Funny that the egt probe was evidentally not designed to be used out side. Also that part of the directions were absent from the install directions.

Randy
2006 f250 4x4 lariat cc swb 6.0psd torqueshift elec tcase soon to have isspro gauges air/fire/tranny/ fuel pretty much stock

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post #5 of 7 (permalink) Old 03-20-2010, 05:09 AM
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Re: Pyrometer neddle jumping around and its Brand new???

make sure that the braided wire for the pyro isnt hitting anything and grounding out..see that happen before.

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post #6 of 7 (permalink) Old 04-04-2010, 12:16 AM Thread Starter
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Re: Pyrometer neddle jumping around and its Brand new???

Found a ground off when i did the egr delete FIXED IT!!!
Thanks for the help PSN

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2006 CCLB F-250 Studs,Squeez,EGR delete,RR to AirDog II and a Airraid Intake & Sct Hot tunes *SOLD*
1963 Chevy Nova II 88mm turbo 408 LSX backhalved and tubbed 9.22 @ 145 @ 5000ft BUILT NOT BOUGHT!
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post #7 of 7 (permalink) Old 04-04-2010, 12:38 AM
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Re: Pyrometer neddle jumping around and its Brand new???

Nice!
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