Flashing "S" on '91 Honda Accord?

I own a 1991 Honda Accord SE and experiencing this strange problem and hoping I can get some input or possible remedy. I have this flashing "S" on my instrument panel and the speedometer stays on "0" MPH reading at any speed when it happens, then eventually the check engine light follows. Generally, the car starts off normal and this problem only occurs sporadically. Normally the "S" is steady solid when I engaged the sports option on my automatic shifter but in this case, engaged or not, I get the flashing "S". I recently added a security alarm on this vehicle, professionaly installed, and soon after I started getting this problem. I don't know if it's related or it happened by coincidence. I don't think the installer can screw up my instrument panel during the wiring installations, or is that possible? I'm reaching out to anyone out there with Honda expertise to give me a hand. I appreciate any input or suggestions.

ive never had that problem. i too have an AT/w ss, and i had a viper alarm installed with autostart and ignition/fuel-injection cutoff. if yours did too, maybe they messed up the wiring since alot is done under the hood. but either way, COMPLAIN. they obviously messed up your car somehow if it wasnt doing it before. professionally installed means something depending on where you get it done, but even the best might mess up every now and then.

Hi this is Luis, I have a 91 accord also and I also have the "S" flashing and my speedometer also does not work it also stays at "0". I asked about that situation at the honda dealership and they told me that my cruise control does not work. I tried it and I kind of guessd how fast I was going and my cruise control did not pick up. Under your hood if you see the cruise control, "Big round end, (silver) with a long wire running into the body of the car, that most likely would have to be changed. That is something that I also have to do. It can be expensive, the dealership told me that it could be anywhere from $650 to about $1500. I would try going to a honda junk yard or where you can buy honda parts for cheaper, that is what I am going to do. Try it out and let me know. Good Luck to you. Luis '99.

Thanks guys for all the support but managed to solve my problem myself by surfing the web. I found this site "Mitchell Buick Honda Bulletin Board" with forums that covers my topic and all other Honda related issues (along w/Buick, of course). The flashing "S" turned out to be the Speed Sensor and I already replaced it. If you guys need the site contact me and I'll also include the site where to get the speed sensor for less and detailed instruction (w/pics) on how to replace it.
Thanks Again!!!!...My Honda is no longer SICK.:sun:

Sickhonda!!....i need the link....tried to send you email but you
selected not to receive emails from the forum.

i'm getting desperate.

thank you in advance.

clokwurk


feel free to email me the link...

essential@comcast.net

Originally posted by clokwurk
Sickhonda!!....i need the link....tried to send you email but you
selected not to receive emails from the forum.

i'm getting desperate.

My BAD, sorry about that. Updated my email setting. Emailed you the info. Let me know the outcome.

Can you send me the info @ L070@aol.com THANK YOU

I need the link also please
ldagdaga@attbi.com

I have a sick 93 honda accord which the D4 light flashes and then it will not downshift into 2nd or 3rd gear it will only go from 1st to 4th. I checked the ECU and it says that it is the speed sensor also. Can you send me the link to your information on purchasing it and replacing it?

Thanks a bunch!

:D LOwACCORD91 & dabradda, I got you two covered. Hope it helps!

:( epic69 - from the syptoms you describe, sounds like you're experiencing a different problem. You did the ECU test and indicated that its the VSS(Speed Sensor) issue? I took the liberty in checking your post history. You've indicated once that you got an ECU reading of 7 on this particular problem, which refers to throttle angle sensor or circuit. VSS (Speed Sensor) ECU reading should be 17. Make sure you follow the instruction on how to retrieve your ECM codes carefully, and double check your work. I can still give you the info, its your time and money, not mine. I need your email address or change your personal setting to accept email, and I'll be happy to send it. Really hope it helps!

I appreciate it if you guys can just update me on the outcome, on this forum.

:flash: epic69 - Did some more research and found this site that might be a solution to your car issue. Check it out first before replacing your Speed Sensor.

http://autorepair.about.com/library/faqs/bl861c.htm?iam=dpile_1&terms=honda+throttle+angle+sensor+circuit.

Let me know if it helps!

Help. I have the same problem with my honda accord. SICKHONDA please email me and let me know how to get an inexpensive speed sensor if that will solve the problem.

hey guys can any of u send me the site for the flashing s sensor so i can fix it i really need ur help

thanx

usually the blinking s means an error in atcu in the 90 and 91's. the 92 and 93's will have the d4 flashing if there is an errror in the atcu. just short the blue connector to pull out the codes for the engine, and if there is no error for the engine the d4/s will flash the codes for you. usually a good cleaning of the sensors contacts will take care of the tranny error codes.


~Stefan

I have a 1991 Honda Accord EX:

When accelerating while driving or after a stopping at a stop light or sign, my car hesitates. Once I get to the desired speed the car runs fine. Also my speedometer and odometer aren't working anymore, but occasionally if I drive over 65 MPH it will temporarily work for 5 miles or so. The engine light comes on and the green "S" light flashes after driving about 1/4 mile no matter how fast I drive.

I've looked at a site and they say it's a speedomoter chip and it would cost about $175.00 (of course the dealer charges more). Also, it could be caused by a few wires touching each other. Any information would be appreciated.

Speedo working fine and no other visible errors? what's wrong?

i could use the url also
meppwc@swbell.net

Thanks sickhonda for the link on the Throttle postion sensor. I have not had the D4 flashing for some time now. Last time it happened was at least 2 months ago. Seems to have disappeared. Was not looking forward to buying a new TPS.

Could someone please send me the link for the site about the flashing "S" problem. I have a 90 Honda Accord EX that has this problem. It also has a problem going in and out of lock up. I unpluged the upper servo and that problem stopped. But the flashing "S" is still there. The transmission changes perfectly, just doesnt go into lock up. Im sure that I would get better gas mileage if this was fixed. Thanks for any and all help.

cbradioman@aol.com

hi guys... iam having a problem with my car. everything works fine when i did the swap with my 93 accord. but when your about to start the car the D4 light keeps flashing and keeps comming on. also when the car is started, the RPM and MPH keeps going on, even though its on park. is it because the D4 lights keep flashing or something, let me know if you guys can help. also sometimes my car would start, and sometimes it would not, it would just crank only... let me know if you guys know whats wrong with it, and let me know if you guys can help, thanks... or you can send some infor to sniper1837@yahoo.com

Originally posted by sickhonda
and the speedometer stays on "0" RPM

the speedometer reads in MPH, the tachometer is RPM

i know what MPH and the RPM is, i just want to know how come everytime when the car is started, the PRM and MPH keeps going up or keeps reving everytime, but then when i shut the car off, it stops, anyone have any clue or idea whats going one...

Thanks 94tegRS, honest mistake. :rolleyes:

no prob, but i dont understand sniper, you mean if your cars not moving, the tach and speedo just keep climbing? does the engine rev with the tach or do they both go on their own?

ok heres the problem, both the RPM and MPH rev at the same time, like when your driving. also, when its on park, the car tend to move, even though its not on drive. another thing. my D4 light is flashing code 7 and 8. my manual says its a throttle angle and TDC position. does anyone know where those are located, and what i would have to do to have it fixed. also this other site says code 7 and 8 are shift solinoid'A' and shift solinoid 'B'. does anyone know where that is located too and what i would have to do to have it fixed. let me know if anyone can help, pics of the shift solinoid 'A', shift solinoid 'B', thorottle angle, and TDC position would be great for me to locate the parts, thanks guys, thanks a bunch...

...... sniper

Sniper,
Not sure if this will help.

http://www.hondaautomotiveparts.com/auto/jsp/mws/prddisplay.jsp?inputstate=5&catcgry1=Accord&catcgry2=1993&catcgry3=4DR+EX&catcgry4=KA4AT&catcgry5=AT++++++TORQUE+CONVERTER+HOUSING

I have the same problem with my 91 Accord (117K miles). Sport Light starts flashing, Check Engine Light comes on, Speedometer stops working. When I turn off the ignition, then turn it back on, everything is OK.

This has happened twice in two years. Also on a couple of separate occassions, the speedometer started acting flakey, dropping to zero, then shooting up, then zero... Until I turned the ignition off and turned it back on.

Since it's only happened a couple of times, I'm not sure if it is a transmission problem or not. It does seems to me the vehicle doesn't shift as nicely as it used to (seems like it doesn't want to shift).

Tried to send email, but it wouldn't let me.

Please send me that link you talked about relating to the speed sensor.
I'd like to know where to find it in the engine, and where to purchase one. Thanks.


Mark

msbrown@iname.com

Sickhonda!!....i need the link....tried to send you email but you
selected not to receive emails from the forum.

i'm getting desperate.

thank you in advance.

clokwurk


feel free to email me the link...

essential@comcast.net

Please e-mail me the link. I have problems with the flashing S light and also the check engine light came on.........worried and concerned about the $$$??? to fix it......maybe it is a speed sensor? Appreciate any help. Thank you.

Carbooboo poshsop@hotmail.com

I had same problem with my 91 accord, the "S" light suddenly flashed and the speedometer drop to zero. This happened a few days after I replaced a new battery. I would appreciate very much if someone could forward the links where I can buy cheap speed sensor and instructions to replace it.
Please forward to dmv_92@yahoo.com .

Thanks in advance.

its not cheap...honda wants like 140 for it...if ur in the area of california i may be able to get it at cost for u..ill call later

Hello everyone.

I bought a speed sensor from a junkyard, but I dont know how to put it on. They guy said it was on top of the tranny but I cant find it. Please send me the website and any information on how to replace the sensor.

Thanks much,
Josh

email: joshjenkins@cox.net

My '91 EX 'S' light would come on and the tranmission would get stuck in 2nd gear, on not downshift, or not go in reverse from park. I could reset it by disconnecting the positive battery cable, but it would come back in a couple of days.
My mechanic diagnosed a bad TCM or TCU. A used or remanufactured unit costs about $280, but I found one on eBay for $15. You don't need the exact part number. My original was 28100-PX0-833, but I replaced it with a 28100-PX4-921.

Thanks guys for all the support but managed to solve my problem myself by surfing the web. I found this site "Mitchell Buick Honda Bulletin Board" with forums that covers my topic and all other Honda related issues (along w/Buick, of course). The flashing "S" turned out to be the Speed Sensor and I already replaced it. If you guys need the site contact me and I'll also include the site where to get the speed sensor for less and detail instruction (w/pics) on how to replace it.
Thanks Again!!!!...My Honda is no longer SICK.:sun:


Could you send me the link also. I'd really appreciate it.

I read through the posts on this thread and thought that it might be helpful to some if I posted a link that has more information on replacing the speed pulser and or sensor. I replaced the speed pulser in my 90 Accord EX auto which sits on top of the speed sensor and this corrected the Flashing S light, malfunctioning speedo and tach. Anyway, here's the link below.
http://www.hondapitstop.com/accord/technotes1/engine/speed_pulser/speed_pulser.html

Bruce

"S" Engine light..etc...First the "S" light, then the engine light, then your head goes beserk???I had my Speed sensor replaced, it solved the problem! ABS, real weird....It stayed on, somewhow reading all these forums, I came accross "Clean" well, I sprayed under the brake assembly all 4 wheels, seems like some dirt was caught...Now, I start the car, the ABS is off, I drive 100 yards, the light comes back????Real weird!!!! Next step is to try and spray the dirt off again, then will eventually get a wheel sensor????

ABS, real weird....It stayed on, somewhow reading all these forums, I came accross "Clean" well, I sprayed under the brake assembly all 4 wheels, seems like some dirt was caught...Now, I start the car, the ABS is off, I drive 100 yards, the light comes back????Real weird!!!! Next step is to try and spray the dirt off again, then will eventually get a wheel sensor????

Check your fluid level in your brake reservoir and make sure it's up to the max line and see if that helps.
Bruce

hey i need the link also.. thanks!

wuttheheezy@yahoo.com

[QUOTE=WutTheHeezy?]hey i need the link also.. thanks!

[You mean the link that I posted about 3 messages above this one regarding the S light? If so then here it is again
http://www.hondapitstop.com/accord/technotes1/engine/speed_pulser/speed_pulser.html

sickhonda. Please send me the link. My 91 Honda Accrod DX has similar problem. But only "S" comes on or goes off occasionally. When it comes on, I can feel the car "shift forward", like to be pushed forward. My email is nianjun@yahoo.com. Thanks. -NJ

Sniper,
Not sure if this will help.

http://www.hondaautomotiveparts.com/auto/jsp/mws/prddisplay.jsp?inputstate=5&catcgry1=Accord&catcgry2=1993&catcgry3=4DR+EX&catcgry4=KA4AT&catcgry5=AT++++++TORQUE+CONVERTER+HOUSING
I have the same problem. Can you give me the link?

My email address is tnguyen3355@yahoo.com

The link is below. Just click on it and it should work.

http://www.hondapitstop.com/accord/technotes1/engine/speed_pulser/speed_pulser.html[/QUOTE]

Hi:
Can you please send me the instructions on how to install the VSS and also the site where I can find cheap VSS?

Thanks
Slushi

Thanks guys for all the support but managed to solve my problem myself by surfing the web. I found this site "Mitchell Buick Honda Bulletin Board" with forums that covers my topic and all other Honda related issues (along w/Buick, of course). The flashing "S" turned out to be the Speed Sensor and I already replaced it. If you guys need the site contact me and I'll also include the site where to get the speed sensor for less and detail instruction (w/pics) on how to replace it.
Thanks Again!!!!...My Honda is no longer SICK.:sun:

hey slushi let me know that site that you're talking about... thanks a whole lot!!

Hey.

Could you please send me the link to where i can find this part cheep.

To bebrahimji@hotmail.com

thanks a bunch

Burhan

where can i find a speed pulser for sale?????i've looked for it but none of the sites i've checked has one.

Hey people,

Me too, dang it!
Blinking S light, Check engine light, Speedometer pegged at 0.
Diagnostic Code 17 from the check engine and a 3 from the S light.
I am having trouble locating the part(s) for sale on the internet.
Need your recommendations on where to find the parts what they cost and what does the "S code" of 3 mean? Thank you so very much.

Ross

My mistake, the S Light blinks a 4 not 3.


s = 4

SICKHONDA "If you guys need the site contact me and I'll also include the site where to get the speed sensor for less and detail instruction (w/pics) on how to replace it."

Please email me this site and detailed instructions (w/pics) at jojomanigbas@hotmail.com

Sickhonda- Please send me the link regarding where I can get a speed sensor and how to replace. I am having the same problem with my 91' Accord. Thanks- dbell22@att.net

My '90 Accord has the same problem. I'm new to the forum. Can you send me the link please?

How to replace speed sensor(pulsar).
http://www.hondapitstop.com/accord/technotes1/engine/speed_pulser/speed_pulser.html

Hey sickhonda, can you please send me that website with the Honda bulletin and speed sensor info?? My email is mr_kovax@hotmail.com

Thanks a lot dude!

[Hi,

Can you send me the link as well.

Thanks

This is an old thread, and we generally prefer people not to revive threads from previous months/years. So please check the date before posting.

However, I will be posting a sticky thread (it will remain at the top of the screen) labled something like "FAQ" in the next day or so, with the relevant information you are looking for.

Welcome to AF.

can you send me that link too?? =-) just bought mine and it is doing that too.. =-(

Hello,
I have a 1992 Accord Ex 4 cyl and the tachometer at times fluctuates,the engine runs fine but the tach acts screwy. Do I replace the vss or is it the gauge itself?

Thank You for your help.

and the connection between the topic title ("Flashing "S" on '91 Honda Accord? ") and your post is?

Start a new thread, as A) this has nothing to do with this thread and B) this thread is multiple years old.