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pinoyclass

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Discussion starter · #1 ·
I was hoping someone here has a 5-speed tranny in their garage. I've been trying to fix my neutral position sensor as its throwing a check engine light. I already replaced it and tested the switch but its still throwing the code. I believe whatever is soposed to stike the sensor when its in neutral is not hitting the sensor and I can't really tell from the FSM diagrams what hits it. If someone could please look inside the hole where the sensor goes and see what strikes it, I want to know if its something metal or plastic. The sensor is the one closest to the shifter on the top right side. Thanks in advance!

Karl
 
I got 2 lol. I'll double-check when I get back from work but, it's metal. The Neutral Position Sensor make contact with the shift arm. The shift arm as a lever type device that move a metal hinge on the sensor. It's rly hard to explain, but I'll post-up a pic.
 
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The link above is from a local car forum I'm in. It has pics of my trans removed/somewhat apart and also has the shifter removed so you can see what's up. It's the best I can do until I get home.

To answer your question, yes... er somewhat atleast.
 
nope, those are the shift forks. If you remove the shifter, you can get to the shift arm, but your going to have to drop the trans to remove the shift arm. Personally, why dont you remove the neutral position sensor and take a peek inside to see if the "striking arms" on the shift arm was damaged.

I couldn't get a pic last night/this morning cause I had an exam and sleep was the only thing on my mind. I promise I'll take a pic of the arm inside the trans and when it's removed so you can see whats going on in the trans.
 
Image

Looks VERY similar to this (this is another "striking arm" that makes contact with a sensor). It's also located the the shift arm, just farther away.
 
Discussion starter · #8 ·
hole is in a bad position its mounted very high so I can't see inside. Maybe next time I get underneath I'll see if I can hold a mirror up to see inside. But whenever you get a chance to take a picture I'm in no rush.
 
OMG lol, the sensor is ALOT simpler then I remember. The neutral position sensor is just a "button" mechanism so no striking arm.
Image

You can see the shift-arm is pushing agianst the sensor. When the shift-arm is in neutral, there is a gap in the shift-arm where the button doesn't make contact (which tells ecu that car is in neutral)
Image

The red circle is the sensor and what I outlined in blue is the shift-arm. You can see of there is a divet in the arm. I'm guessing either you have bad wiring or something is up with your ecu, 'cause there is no way that can get broken internally lol. Good news for you then (since you don't have to drop the trans ;) ) but I'd also check the sensor (remove it and push and release the button and see if your getting and signal)
 
Discussion starter · #10 ·
Wow those pictures are very helpful, more than I was expecting. I tested the old sensor with a volt meter and it wasnt working, tested the replacement and was working good. Now I'll have to follow the wiring to the ECU. THANKS!
 
There is no contact when it's in neutral, so if the button is pushed, it's in gear, if it's not being pushed, it's in neutral.
 
Discussion starter · #13 ·
I figured it out! The replacement sensor was backwards. It was showing continuity when the button is pushed. I just took the old sensor and washed it under some water and it started working correctly (continuity when not pushed). Put it back on no more check engine light! Thanks for your help!!!
 
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