Phildodd06

Just a quick one,

I went and ordered a Netural Position Sensor from Subaru yesterday
Now looking at my order form he gave me, it says Netural Position Switch

Are these the same thing?
Obviously if they are diffrent parts, i do not want to buy the wrong part and be stuck with it.

Car is a WRX STI Type-R 1999

Thanks

T5NYW

iTrader: (4)

Phil

80% certain it's just different "Terminology" for the same item they should one and the same.

May help the experts on here if a Picture or Part No. to 100% identifiy it

Tony

Phildodd06

Thanks T5NYW

When Subaru ring me back to confirm the order, ill get the item number and post it here.

bugeyeandy

Yep, it's proper name in the manual is Neutral Position Switch.

You can check it out with a meter , across pins 1 and 3 (brown connector) you should have continuity only when the gearbox is in neutral.

Phildodd06

They confirmed the order with me today £35+vat
Not 2 bad i didnt think.

Forgot 2 ask them for part number, gonna take old sensor out when i go 2 collect the new 1, make sure its right

Also ordered a clutch slave cylinder return spring £5+vat, now that i thought was expensive!

T5NYW

iTrader: (4)

Good prices for a change

Phildodd06

I removed the NPS earlier, gonna take it wid me when i collect it

Phildodd06

Fitted the new sensor today, and guess what still geting the check engine light on.

I have read the engine error codes, when the black connectors are together i get 24 (Idle air control sensor) but i am not haveing any running problems.

When i do the test with the green connectors i get 51 (Neutral switch)

Tryed clearing the codes, but still come back,
Also tryed reseting the ecu, still get the same codes coming up.

Please help as it is driving my mad, im even thinking of selling the car because of this and another silly problem im having

T5NYW

iTrader: (4)

first check old one doing a continutity/ohms test (not meggar ohms), should be "pins" and and Normally open or closed volt free switch, Then check the new NPS whilst disconnected and in positition? Then check in gear and in Neutral? .

Is it just two pins?? Should either 12V or 0V (some things maybe live or negative switching) supply to connector and other cable is signal return to the ECU

Some one must have the ECU Pin numbers for the NPS, will just need to check there it is actually switching there. Possibly a broken connector/wire.


Tony

Phildodd06

Ill have to try that T5NYW, thanks

The thing is i know how to drive the car and not get the check engine light on, but also i can drive it and get it up all the time

To get it to come on, i downshift, like you would to engine brake, downshift a gear (3rd down to 2nd) revs go up to about 2.5-3k and let the revs drop down to about 1-1.5k (Without braking) this should get the check engine light on every time

To make the car not get the check engine light on, slow down first and then change down gear (NOT engine braking)

I am now thinking, my flywheel might be causing the problem, posibly?
I get clutch judder, so when i down shift to slow down (Engine brake), the car shakes, which im now thinking is shaking something and making the check engine light come on.

Just a theory, does it make any sense?

Phildodd06

Nobody else think my flywheel is causing the fault?