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1990 honda accord LX the "s" light flashes and the speed ometer quits working, and it act like the fuel shuts off. This time the check engine light came on, but the code comes up as O2 censor. Already changed the main relay, air filter, plugs & wires.
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IDLE SPEED COULD BE LOW CHECK IDLE SPEED SHOULD BE 650 - 750 RPM.CHECK IDLE SPEED IF OKAY YOU COULD HAVE FAULTY FUEL PUMP OR VECHICLE COULD BE GETTING HOT OVERHEATING SHUTTING OFF ENGINE.YOUR EGR VALVE OR PCV VALVE STUCK OPEN.CODE SCAN FOR FAULT CODES.
The 1990-1993 accord timing marks are located in the space between the engine and transmission. There is a rectangular rubber plug, at the top, front of the transmission housing, that pulls out and the timing marks are visible(with a timing light) through that access hole.
On my 1990 Accord Lx I have the same problem. My floor pan has a hole in it some where and my carpet gets wet which gets my computer wet causeing the "S" light to flash and then when my tranny shifts it skips 2nd gear.
The idle speed for my 88 accord lx is 700-850 rpm for standard idle speed. The stalling is a seperate issue. When were plugs, wires, air/gas filters and distributor last checked? How long has engine been running for when you stall? Is the temprature gauge high? Any lights coming on when stall occurs? I am not a mechanic, but a DYI'er. These are common questions I am always asked when troubleshooting my Honda. :)
you have a sensor acting up on your motor have the code read at any shop for about $25 and they will tell you exactly what sensor is going out and needs to be replaced
on my 95 accord my d4 light used to flash after driving for for an hour or 2 then the speedo would do strange things.so i changed the speed sensor relay [located on the gearbox] and solved the problem.
A green flashing "S" is similar to a check engine light. It is telling you that something in or on your transmission is not functioning correctly, such as the speed sensor or shift control solenoids. If it starts flashing and the speedometer stops working or the transmission shifts weird, take it to a mechanic.
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