my 98 accord 5 speed speedomenter sometimes doesnt work. When it doesnt work it idles rough. Sometimes dies. It also lacks power. Almost seems like down shifting when you let off the gas when it is in gear. Sometimes when it isnt working the temp gauge will also bounce. Peg hot and then go down to normal. Any clue as to what this could be? I dont see how it could be the speed sensor just cause i dont know how the speed sensor could cause the idling problem and the car lacking power. Please let me know if you have any suggestions... Any help is great.

Thanks.

 

Does the check engine light turn on or the D4 light start flashing?

 

check engine light is on already from a leak. i have a 5 speed so the d4 light does not come on.

 

What is the code you are getting?

 

p1457. its a code that i had for a while now. I know it has nothing to do with the problem i have now.

 

Checked it lately to see if you have any additional codes along with the P1457?

(I agree EVAP leak won't cause your current problems)

 

well i heard that it is the vss. how hard is this to replace in a 98 accord 4 door 5 speed ex manual? is it pretty easy to get at and do? anyone have any pictures?

 

I think this might help you in your Quest on your question..
click the image...

WheelBrokerAng

 

P1457 is a leak in the EVAP system, it has nothing to do with the VSS.

Did you read error codes lately to see whether you have any more in addition to P1457?
P0500 would be a problem with VSS, on a manual-trans car.
(P1791=VSS for an auto-trans car)

If you don't read a P0500, then the ECU seems to be getting a good signal from the VSS. I'm pretty sure in 1998 the VSS signal doesn't go to the speedometer. The speedometer is driven directly by the ECU.

 

never seen yet a bad vss cause a car to run rough and die .. any other codes stored in the ecu besides p1457 ??......Don't replace any parts till properly diagnosed