1991 Accord no speedometer then S light blinks the check engine light comes on......help. thanks



Mike Kozura

 

Please post questions like this in the General Tech section, I've moved this one for you.

First thing you need to do is get the codes from the ECU (CEL) and the TCU (D4). See this for help: https://www.hondaaccordforum.com/for...threads-40780/

Sounds like an issue with the VSS but you want to get the codes to be sure and not go on a guess.

EDIT: I now see that you did post this question in this section as well. I deleted the dup questions/posts

 

Thank you



Mike Kozura

 

Anytime, let us know how it goes

 

OK Man I got

ECU #17 VSS - speed sensor

TCU #4 vehicle speed sensor open or shorted - no singnal from speedometer


Mike Kozura

 

Well that goes with what I was thinking.

You can do some more tests or find a used/new VSS and replace?

 

I already have one coming thanks...... I got it before I found this forum, Local parts stores were 100.00. I got one on E-Bay for 10.00...... I hope it works if not heck it was only ten bucks....lol

Honda VSS Vehicle Speed Sensor - Brand New | eBay


Mike Kozura

 

Thank you...Thank you...Thank you... just changed th VSS and all is good...and my sixteen year old (whos car it is) got a lesson on getting little bolts out of little places, when you drop them....lol.


Now I have to start a idle threed....sometimes it's good sometime it's not....lol. still trying to gather more info on when it does it..


Thanks again
Mike Kozura

 

You're welcome, you're welcome.....our pleasure

A '91 with idle issues. Again do nothing until you know.

All tune up items need to be checked (cap, rotor, plugs, inspect wires) if you are not sure of their age.

A good TB (throttle body) cleaning never hurts.

From there, the IAC, FITV and the Air boost cleaning/adjustment would be on my list.

Try to get the "situation" when this happens, as you said, and it might help narrow down things.

Good luck

 

Thanks....speaking of the TB we had the air duct off and there's oil at the TB.....not a lot but oil....it seems to be sucking it from the little vac line..... but not sure. I wiped oil from the TB with my finger but didn't clean it good. Now today cold or hot it seams to idle ok....about 850 or so thanks