check engine light from a 4.36 ring gear? need to smog car =/ - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

240meowth · 06-01-2007, 11:31 PM

so i need to smog my 5 speed 93 w/ ka24de here in cali, i have a check engine light cod 14 (vehicle speed sensor). And i can't figure out what's going on.

i heard it shouldn't trigger the check engine light, so who knows...

i've heard there's a possibility i can get a speed sensor that's at this ring gear's ratio or get a new gear for the vss, someone clue me in?

Jpooks_S13 · 06-02-2007, 12:49 AM

itll turn itself off in a week

...jk idk my check engine light decides to pop on and off every now nad hten i think just to see if im paying attention

sijia10358 · 06-02-2007, 01:55 AM

take ur car to the dealer and they'll tell you wats wrong with it. then take ur car to a cheap shop to fix it lol!

g6civcx · 06-02-2007, 08:24 AM

Quote:

Originally Posted by 240meowth

someone clue me in?

There is no correlation between the ring gear and the VSS, provided you installed the ring gear correctly. The VSS measures gearbox output shaft speed. The ring gear is well aft of the propeller shaft.

Your speedo will be off, but your ECU won't know it.

Chances are you damaged the wiring or sensor somehow, or the two are just not related at all.

projectRDM · 06-02-2007, 10:16 AM

^ Correct. The VSS has no way of knowing you've changed the pinion, nor would it care.

240meowth · 06-04-2007, 06:08 PM

Quote:

Originally Posted by g6civcx

There is no correlation between the ring gear and the VSS, provided you installed the ring gear correctly. The VSS measures gearbox output shaft speed. The ring gear is well aft of the propeller shaft.

Your speedo will be off, but your ECU won't know it.

Chances are you damaged the wiring or sensor somehow, or the two are just not related at all.

so should i replace the sensor or what? it's $210 from the dealer...

johngriff · 06-04-2007, 06:12 PM

If the speedo is all good, it is probably the signal between the cluster and the ecu has been damaged.

Test! For Continuity.

dopeassjackson · 06-04-2007, 07:23 PM

you probaly have ABS and it senses the diff speed vs the frotn wheel speed and the vehicle speed. your cars ABS is probaly not going to work 100%.

projectRDM · 06-04-2007, 08:27 PM

Quote:

Originally Posted by dopeassjackson

you probaly have ABS and it senses the diff speed vs the frotn wheel speed and the vehicle speed. your cars ABS is probaly not going to work 100%.

Incorrect, try again.

240meowth · 06-05-2007, 12:46 AM

Quote:

Originally Posted by johngriff

If the speedo is all good, it is probably the signal between the cluster and the ecu has been damaged.

Test! For Continuity.

how would i take on such feat? can you tell me which wires to test behind the ecu?

g6civcx · 06-05-2007, 06:18 AM

Quote:

Originally Posted by dopeassjackson

you probaly have ABS and it senses the diff speed vs the frotn wheel speed and the vehicle speed. your cars ABS is probaly not going to work 100%.

You would like to think that; however, the ABS ECU is not that sophisticated. It only measures speed to prevent lockup. It does not correlate vehicle speed to wheel speed, at least not in the S13.

Plus the speed between the gearbox output shaft and the front wheels will most likely be different under braking.

The VSS is mounted in the gearbox and measures gearbox output speed for displaying and speed control purposes. The ABS rear wheel speed sensor is a separate unit that goes in the rear diff area. Check the FSM for details.

06-01-2007, 11:31 PM	#1
240meowth Nissanaholic! Join Date: Dec 2001 Location: torrance, ca Age: 41 Posts: 2,407 Trader Rating: (4) Feedback Score: 4 reviews	check engine light from a 4.36 ring gear? need to smog car =/ so i need to smog my 5 speed 93 w/ ka24de here in cali, i have a check engine light cod 14 (vehicle speed sensor). And i can't figure out what's going on. i heard it shouldn't trigger the check engine light, so who knows... i've heard there's a possibility i can get a speed sensor that's at this ring gear's ratio or get a new gear for the vss, someone clue me in? __________________

06-02-2007, 01:55 AM	#3
sijia10358 Zilvia FREAK! Join Date: Nov 2005 Location: SoCal! 626! Age: 35 Posts: 1,075 Trader Rating: (4) Feedback Score: 4 reviews	take ur car to the dealer and they'll tell you wats wrong with it. then take ur car to a cheap shop to fix it lol! __________________ [email protected] TIRE CENTRAL "DONALD" 626-227-0150 DRIFT SPEED "QUOC" 562-342-9000

06-02-2007, 10:16 AM	#5
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	^ Correct. The VSS has no way of knowing you've changed the pinion, nor would it care. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

06-04-2007, 06:12 PM	#7
johngriff Post Whore! Join Date: Jun 2004 Location: Long Beach, CA Posts: 4,103 Trader Rating: (4) Rides Gallery: johngriff Feedback Score: 4 reviews	If the speedo is all good, it is probably the signal between the cluster and the ecu has been damaged. Test! For Continuity. __________________ [email protected]

06-02-2007, 12:49 AM	#2
Jpooks_S13 Leaky Injector Join Date: Feb 2007 Location: Las Vegas Age: 37 Posts: 131 Trader Rating: (0) Feedback Score: 0 reviews	itll turn itself off in a week ...jk idk my check engine light decides to pop on and off every now nad hten i think just to see if im paying attention

06-04-2007, 07:23 PM	#8
dopeassjackson Zilvia Member Join Date: Oct 2005 Location: stone ridge NY Posts: 150 Trader Rating: (0) Feedback Score: 0 reviews	you probaly have ABS and it senses the diff speed vs the frotn wheel speed and the vehicle speed. your cars ABS is probaly not going to work 100%.