Vehicle speed sensor?

[Demon1024]

Hello again. i can't seem to keep my cel off so here goes. driving i let off the gas and let the engine brake the car for more than 5 sec. the cel comes on with a 17? is this normally how they act when they go and which part do i change? i tried the amplifier and the little circit on it. is it the pulser? i can't find my meter to test it. Also which part acctually determines the speed cause i think the 86 had 13's on it and my 88 has 14's so i'm hoping to only replace the part i have to
Greatly appriciate any help.

the manual is kinda vague about what the sensor looks like and i can't find the answers pertaining to these questions

[AccordB20A]

all i know is that its in the dash. a sensor thats in the back of the speedo unit. maybe someone unplugged it

[Demon1024]

don't know if this'll help but i just found out it will do the same thnig whether the speedo cable is connected or not

[AccordB20A]

yeah its getting no signal isnt it? Your speedo works tho im guessing?? U will have to have a play with the wires on the bacj fo ur speedo / get a new one

[Demon1024]

yes speedo works fine pretty sure the wires are right now. i'm gonna check the diagram for that now. tried changing stuff out but no luck all but the pulser i'd change that to but i want to keep the odometer reading
checked online manual only shows three wires mine has four?

[Demon1024]

I've had issues in this area before and while searching i found this.
https://www.3geez.com/forum/attachmen...6&d=1055979906

i know the pic may not be accurate but is the one one the right(a) supposed to have that wire on it it's on the left(b) on mine now because it was causeing odd idle problems maybee i'll change the whole speedo cluster and wire it that way see if that works...

[AccordB20A]

swap the whole cluster if you have a spare, Make sure its out of the same model that you own too.

[Demon1024]

both my other 3g's are autos
I tried swaping the pulser from one and the speedo went nuts reading about 3x what i was going. tested the wire to the ecu it's good. swapped the little circuit board and the yellow lightbulb looking sensor under the pulser and nothing i guess it's the pulser itself oh well of to the j/y again

[Demon1024]

Thought i'd add this.

Now it jumps the idle up at random stop or go i can only hope this is the same problem. i'll update when i figure it out...

[Dr_Snooz]

Isn't the speed sensor bolted to the top of tranny? With power steering hoses going into and out of it? It's covered in the power steering section of the shop manual (p. 18-12 in the '89 manual).
Just out of curiosity, is your power steering acting strangely as well? That would also indicate a speed sensor problem.

[Demon1024]

Thats the same thing i asked. yes one on the tranny to control the P/S and one inside the dash to control speedo actually should have said vehicle speed sensor (VSS)

Anyone: since i'm posting, the VSS from an auto work on a stick?

[carotman]

The thing on the trans only spins the cable.

My guess is that the pulser could be dead. Get a meter and check it. The procedure is in the shop manual.

[Demon1024]

Which part IS the VSS? the whole thing behind the speedo? i'd like to keep my original odometer kinda proud of it...

or this yellow thing? only things with wires on them connected to speedo or is it in the dash or just the name for the whole assembly?

[Dr_Snooz]

Any update on this one? Were you able to figure it out?

[Demon1024]

Nah still haven't taken it back out those are pic's of one of my extras. i just got done swaping my engine so maybee this weekend i'll try to figure it out i've been living with this problem for a while kinda got used to not engine breaking more than 3 seconds

[Civic Accord Honda]

yea my cluster was thowing that VSS code too but also was not working i noticed my cable was busted so replaced it and it still did not work so i installed my carb cluster for temp and now the speedo works but idk if im thowing a cel code or not since it dont have the light XD