Stupid Engine Light

ONLY for ADVANCED technical discussion about the 240sx!
Dorifto-King
Posts: 39
Joined: Fri Nov 22, 2002 2:52 pm

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Yesterday i changed the oil in the car. While i was at it i decided to change the Fuel Filter, i put in one of those 300ZX filters. After having done this i started the car and the "Engine" Light came on. What's up with that? Does wnyone know why it would have done that, or has anyone heard of that happening with anyone else. Could the filter have messed up the fuel pressure? Your Thoughts?


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slw240sx
Posts: 3303
Joined: Thu Aug 08, 2002 9:39 pm
Car: 1990 Ca18det 240sx Hatch

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do s13s have a engine light !?!?! ive never seen one turn on in mine and mine is running like its got a dead cylinder

daniel240
Posts: 1516
Joined: Mon Jan 20, 2003 7:37 pm
Car: cars/motocross
Contact:

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i put a 300zx fuel filter in mine and nothing happened. just have it checked out and find out what the code is to make sure thats what it is. it shouldnt mess anything up though.

yellow_jacket
Posts: 1355
Joined: Mon Jan 13, 2003 4:43 pm
Car: 95 240sx

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Check to make sure your check engine light comes on when the ignition is in the on position with the engine off. If it does not light up someone has probably removed the bulb or cut the wiring.

Phantom
Posts: 51
Joined: Wed Dec 04, 2002 10:57 am

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Guys the check engine light only comes on when its an emmisions problem like the header or EGR valve but you may have had a part fail in that time or possibly you put it on wrong or even you hit a part on the emmisions system and it threw it off but take it in and get the code checked it see if thats it.

96_S14_SE
Posts: 973
Joined: Wed Nov 06, 2002 11:10 am
Car: 96 S14 SE - 05 VW GTI 1.8t - 89 S13 coupe "gold on brown"

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Phantom wrote:Guys the check engine light only comes on when its an emmisions problem


Thats simply untre, and there are many reasons and parts that could trigger a CEL / MIL.

daniel240
Posts: 1516
Joined: Mon Jan 20, 2003 7:37 pm
Car: cars/motocross
Contact:

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yea almost anything could have set it off, you just need to go get it checked 1st, auto zone does it for free.

yellow_jacket
Posts: 1355
Joined: Mon Jan 13, 2003 4:43 pm
Car: 95 240sx

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Autozone only does OBDII cars for free, they cannot check anything else. Since he has a 95 it is unsure whether he has OBD I or II(Seems to have switched midyear as many with 95's had had both)

LiU
Posts: 683
Joined: Tue Aug 06, 2002 4:11 pm
Car: Cars

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http://www.240sx.org has detailed isntructions on cdiagnosing your engine light and reseting it....its pretty simple you can do it yourself the only hard part is removing the ECU (I have a 96, and removing it is tricky)..... shops usually diagnos your engine light for about $70....

also if you're SURE that it has something to do w/ the 300Z filter and you don't want to spend $ at a shop just simply remove your battery and *touch the red and black wires (it might cause a little spark...) and leave the battery wires off for at least 12 hrs (overnight) and this will "resets" your ECU because it causes the ECU to lose its memory

*I don't know if touching them together is necessary but it is what I've been told...you can try it w/o touching the 2 ends


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