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chatosf
Jan 6, 2009, 02:11 AM
I have a 1990 honda accord 2 door ex and the speedpmeter don't work and would like to know how I can tell if it is the whole tach that is needs to replaced or a quick fix and all help would be nice

I have replaced all the fuse in the box and under the dash and that's about it

this8384
Jan 6, 2009, 03:07 PM
Not sure if your car has a speed sensor; that may be the problem.

TxGreaseMonkey
Jan 6, 2009, 03:24 PM
If the odometer and trip meter work, but the speedometer does not, inspect the speedometer, then the printed circuit board.

chatosf
Jan 6, 2009, 05:28 PM
Both trip and odometer don't work along with the speedpmeter and this is my firls honda I'm a Mitsubishi guy lol

TxGreaseMonkey
Jan 6, 2009, 06:21 PM
Since the speedometer, odometer, and trip meter do not work:

. Test all underdash fuses with a test light or multimeter. Be very thorough.

. Examine and clean the Variable Speed Sensor (VSS) connector on the transmission.

. Clean the main ECM ground, located on the thermostat housing, since the VSS grounds via the ECM.

. Replace the VSS, if the problem persists.

That's the best I can do.

chatosf
Jan 6, 2009, 06:28 PM
OK thanks will do that also the engine light came on and I read the code 41 which is 41 Primary oxygen sensor heater that means I should replace the o2 sensor or something elss?

TxGreaseMonkey
Jan 6, 2009, 06:33 PM
Here's how to replace the Oxygen Sensor:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563.html#post223376

Stay away from Bosch sensors.

chatosf
Jan 6, 2009, 06:45 PM
Thanks will let you know how it went and thanks for all your help