I have a 1999 honda accord ex 340000 miles on it when i start it it starts then rpms go straight to zero. Try to start it again same thing.Please help me {black}:idontknow:
Your tach's signal comes from the RPM output pin on your PCM via a Blue wire to your Tachometer gauge.
So it would be useful to hook up a scanner to see if you can read the rpms on it (even though your dash tachometer gauge is reading 0 rpms.
If your scanner displays the RPMs it would tell you that the problem is either with the Blue wire, its pin connection to the PCM, or the PCM isn't providing an output signal to the RPM output pin.
In this case you could first try disconnecting your battery cables for 5 or 10 minutes to try to "reset" the PCM and see if that works before running down any problems in the wire/connector/PCM
Check for vacuum leaks of course make sure the air filter is clean and the spark plugs are good if you can't find any vacuum leaks and everything is okay try my video make your car run better with the little spray cleaner
