View Full Version : P0100
dannysanchez208
10-28-2015, 10:38 PM
So im back on here with the same problem i have the check engine light code p0100. I fixed it by buying a maf off of running s14 has the same part number as mine and ran fine. So just this last saturday i put new motor mounts and as i finished up i went to put gas and its starting running like shit someone please help me out this is getting really annoying. If your in the san jose california area im willing to pay you to stop by and help me out thank you
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kruked
10-29-2015, 06:13 PM
Faulty wiring. Add an extra ground from the MAFS to the chassis and see if that helps.
dannysanchez208
10-29-2015, 10:22 PM
How would i do that exactly?
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kruked
10-30-2015, 12:54 PM
Use a multimeter and find the ground signal from the MAFS wiring. Cut the sheathing back a couple of inches from the plug, make an incision. Add a wire to the incision and ground it out to the strut bar. Ride around like that for a day or two after you clear the code and see if it pops back up
dannysanchez208
10-30-2015, 02:55 PM
Ok i did something like that last night first i erased the code then i tapped into the ground and grounded it next to my intake box and i drove it to san francisco and back and so far so good i also brought it to work and still no code it also runs better then it did before i put the engine mounts
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kruked
10-30-2015, 02:57 PM
I hope that it solves your problem brother. Report back in a couple of days and let us know how things are going.
dannysanchez208
10-30-2015, 02:59 PM
Thanks kruked i appreciate the help it was a real headache
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dannysanchez208
11-02-2015, 10:02 PM
Sorry to bother you again kruked but my car started doing the same thing again and the check engine light came on as well
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kruked
11-03-2015, 12:49 PM
Did the problem stay gone longer this time than any other time?
I've never owned an s14 so i dont know how many wires are on the plug for the MAFS. I'll have to check out the FSM later on tonight after I get off of work. I'm wondering if there is 2 ground wires for the MAFS. There has to be a faulty connection in the wiring whether it be a signal or power wire. I guess that we can rule out the ground for now, (unless that there is 2 ground wires).
Does the plug look all nasty? Corrosion? It could be the plug itself. A lot of the mid '90's Maximas have that problem, corrosion.
dannysanchez208
11-03-2015, 07:33 PM
The plug only has 3 wires running to it. It doesnt look all nast it actually looks very clean still. Also as we speak as im going home from work the car started running like complete shit and keeps dying on me so im pulled over on some random street
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kruked
11-03-2015, 08:58 PM
Check out, "Engine Control System (EC). Page 92. 95 and 96 will suit you better.
http://240edge.com/manuals/240sx-1995.html
dannysanchez208
11-06-2015, 08:18 PM
Hey kruked i kinda found my problem. My signal wite is melted way back into the harness i tracked it up to the fuel injectors and gave up it clearly keeps going
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dannysanchez208
11-06-2015, 08:18 PM
Would you know if a s13 harness would fit in my s14?
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