RPM needle and temperature needle starts dancing WTF???

Discuss topics related to the CA18DE and CA18DET series engines.
silentkrnsouljah
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Joined: Thu Dec 07, 2006 6:09 pm

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whats up nico lovershere is situationi relocated my battery to the trunk for FMIC set upand then everything was fineexcept this problemwhen im driving my RPM needle and temperature needle startsgo up and down like crazy its like dancing and ****what would be the problem??? this **** freaking me out man lol


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r34 gtr
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good question. my tach occasionally goes nuts when the car is cold. my speedo has also started reading crazily on occasion(HUD).

silentkrnsouljah
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damn so u have same problem as i do??anyone knows what would be the problem??

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mbmbmb23
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Bad ground.

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The_Chosen_One
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it can be a slew of things, sensors going bad, wire going bad, the actual cluster could be going bad. I had issues with tach and speedo, swapped out the cluster never had a problem since. Try swapping out a cluster see if it continues.

XTCshri2222
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need to call the exorsist hah, nah but imo its ground, i had that happen once.

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rico05
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Bad ground. Mine did similar things when i had a bad ground.

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yourmomsrps13
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my temp. gauge does the same. what ground?

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rico05
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My aftermarket one did until I grounded it.

boost_boy
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They are right in the fact that either your battery is not grounded to earth properly or the battery cables you're using are not thick enough to conduct the amount of electricity and continuity to make the car function properly.

Dee

Masterdebater
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Car: 1989 nissan 240sx coupe

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alot of the interior modules can be shorted by blown fuses on the driver side kickbox. my car went crazy when one of those fuses were blown and i put a new one in and it was all fixed. check ur fuses and grounds. most likely the ground somewhere tho lol

silentkrnsouljah
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Joined: Thu Dec 07, 2006 6:09 pm

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hmm so where did you guys ground your wire to??i run 4 gauge wire and i grounded to the trunk but i re did to under the back seat and i check the all the fuese under the dash it still doese itbut this time ONLY temp needle... damn this thing bothers me lol

Masterdebater
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i dunno which ground wire would be messed up...

nismoplsr
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Your battery ground sound like it should be fine.

Make sure you have a very good cable grounding the engine and transmission to the chassis.

silentkrnsouljah
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Joined: Thu Dec 07, 2006 6:09 pm

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Okay here was the problemi regrounded my battery to the trunk, THEN ground engine to the chassisthat was the problem once i ground my engine to the chassie everything was fine! THANK YOU VERY MUCH FOR ALL YOUR HELP AND TIPS ETC...i really appreciate it !!! NICO CLUB IS THE BEST

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float_6969
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Dangit, I got in on this one late. I was just going to ask if the engine was grounded to the chassis....


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