1997 Honda Accord Honda Accord unintentional acceleration


Computer problem
1997 Honda Accord 6 cyl Two Wheel Drive Automatic 133000 miles

We've had 2 occasions when our 1997 Accord engine had unintentional acceleration. Can the engine computer give us an answer why this happened? If not how can I find out why.

Do you
have the same problem?
Thursday, May 14th, 2009 AT 6:35 PM

1 Reply


Can you explain briefly what exactly did you meant by this unintentional acceleration. I took it as it goes on its on w/o stepping the pedal to the metal-Is this the case? If so see below

Too fast an idle speed. If an engine without computerized idle speed control is idling too fast and refuses to come down to a normal idle speed despite your best efforts to back off the carburetor idle speed screw or air bypass adjustment screw (fuel injection), air is getting past the throttle somewhere. Common leak paths include the carburetor and throttle body gaskets, carburetor insulator spacers, intake manifold gaskets, and of course, any of the engine's vacuum fittings, hoses and accessories. It is even possible that leaky O-rings around the fuel injectors are allowing air to leak past the seals. Another overlooked item can be a worn throttle shaft and a defective idle speed speed control motor/valve stuck in the extended (high idle speed) position/throttle position sensor. Also the throttle plate could be binding in its bore and kinked accelerator cable, coolant temperature sensor might not be operating properly misleading the computer that the engine is still cold and computer throwing fuel at it raising the idle speed.

Was this
Thursday, May 14th, 2009 AT 6:46 PM

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