Question about 1994 Honda Accord

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I have a 94 honda accord lx. When cold it idles low and rough until warm. Once warm its fine i changed plugs oil filter air filter and fuel filter. I even tried cleaning the idle air control valve. Please help

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Dear friend-close to your thermostat housing there is a sensor that controls the idling that steps up the idling when the vehicle is cold and returns when vehicle is hot,replace this sensor and your problem will be solved.

Posted on Nov 16, 2009

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Hi have you tryed the coil or even spraying dampstart over the plugs leads and coil all so put some red ex in the tank thanks ben

Posted on Nov 16, 2009

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Although is could be a fuel filter, it could also be a fouled spark plug, or a bad spark plug wire. Once you've ruled these things out, the problem could be the TPS (throttle position sensor). This controls your idling speed under all conditions. A faulty TPS will usually idle fine when the engine is cold but once warm, will tend to sputter and in some cases, stall.

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Vibration at idle


it may be idle control sensor or a bad mas air flow sensor--maf sensor in otherwords. or could be engine misfire at cold temp. start. only time when cold? or does run better when warm? try warming engine to operating temperature before driving,if problem removes it's self after warm up,up grade gas to 93 octane for 1 tank full. then see if problem goes away. it's cold where you are right? if so the fuel needs to be at least midgrade 89 octane fuel because 87 octane fuel will not start your honda correctly at cold temps. in cold weather 93 or super gas octane will start ,no problem,low octane fuel sometimes gels, or freezes at low temps. if in warm climate, change the fuel filter, add fuel injector cleaner to your fuel tank[preferablly lucas fuel treatment] this will lube your fuel injectors and give better fuel mileage. thank you for choosing fixya.com

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Right when car warms up it has a lower slightly rough idle with a miss every once and awhile. When I drive it, unless I push the gas to the floor, it runs with a miss and shakes the car a bit. Sounds like...


Could very well be the main relay, limiting power to all the electronics in your car, causing the problems you've mentioned. Have it repaired or replaced.

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1996 Honda Accord Rough Idle Even After tune up performed Changed spark plugs, distributor cap and rotor wheel along with all spark plug wires, changed fuel filter, air filter, spent $150 on fuel injector...


Perform a valve clearance inspection and adjust if necessary. Tight or sticking valves will cause a misfire or rough running concern. Note: Perform valve adjustment when the engine is stone cold. 4cyl: INT 0.26mm EXH: 0.30mm (V6 engine are hydraulic and no adjust necessary.) Also check for a sticking or stuck open EGR valve. For diagnostic purposes only: Remove the EGR valve. Place a business card over the EGR passage and bolt the EGR valve back on. This plugs the EGR ports and if the misfire goes away the EGR valve is partially stuck open and is defective.
Check for low fuel pressure. Check for low compression. Check cam timing. Check for a weak ignition coil. Also don't over look the possibility of worn or broken engine mounts which cause excessive engine movement and engine vibration. -hope this helps

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1 Answer

1992 honda accord lx starts okay then idles down wants to stall


a good tune up shall solve your problem. replace the ff: spark plug. spark plug wires, air filter, fuel filter, and an oil change, good luck!

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1995 accord LX engine shakes when starting


have you try cleaning also the air filters..? fuel pump..?

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