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Having the same problem with a 1998 Honda Accord, V-6, if you've got a trouble code then follow that trail, TPS (throttle positioning sensor), IAC (idle air control valve) and MAP sensor (mass air flow), will generally post a code to the ECM, if not then look for vaccum line leakage,(motor mount system may be vac operated and the lines can easily get loosened). The last possible suspect would be the O2 sensor, you've probably got 2 of them, the upper one(closest to the engine) tends to get more heat abuse. (Look for the simple fix first)
What else can I help you with?
Why does your 1999 Honda accord shut off when the engine is cold?
You need to have the main relay replaced. I did that with my 1992 accord. ask around if you don't believe me. good luck. ro
Why does a Honda accord 1993 rpm go up and down until it warms up?
The fluctuating RPM in a 1993 Honda Accord until it warms up can be attributed to the engine's need to reach its optimal operating temperature. Cold engine conditions can cause the fuel-air mixture to be less efficient, leading the engine control unit (ECU) to adjust the idle speed to compensate. Additionally, components like the idle air control valve (IAC) may struggle to regulate airflow effectively until the engine warms up, resulting in unstable RPMs. Once the engine reaches its proper temperature, it generally stabilizes, allowing for smoother operation.
Where is the idle air control valve located on your 1995 Honda Accord?
On throttle body. It lets in extra air at idle when engine cold and throttle blade is closed.
Why is Honda Accord AC blowing hot air?
It is broken. AC's usually blow cold air.
Why did My 2006 Honda Accord engine light come after repeatedly trying to start it it with my self starter in very cold weather?
Have the vehicle scanned for codes. The codes will help determine the why.
Why does Fan in Honda works priodacaly in your Honda Accord 1998?
it turns off and on depending on how hot or cold you are running its all on your thermostat
Can you pour coolant fluid directly into a 96 Honda Accord radiator?
A mix of 50% clean water and 50% antifreeze is recommended in most climates. Add only when engine is cold.
What would cause the water in overflow reservoir not to return to radiator when engine is cold 1985 Honda accord lx runs hot how do I replace thermostat?
possibly a leak in cooling system
How much horsepower does a cold air intake add to a 1995 Honda accord lx?
15 hp
How do you repair your RPM gage fluctuation upon deceleration in your 98 Honda Accord?
Honda tachometers are notoriously sticky. Almost every one that I've seen does what you describe. Yeah, but what's his problem? I have a '92 Prelude manual tran. with maybe the same problem: tach. fluctuates upon deceleration, but no noticeable actual change in engine rpm's. Acts like a loose wire or connection. Also doesn't happen when engine is cold, but once warm starts fluctuating for about 20 minutes...then goes away. Engine seems to run fine all of this time, but it's distracting.
What causes a Honda accord AC system to blow warm air when idleing and cold when moving?
Needs a recharge
Why would the AC on a 1999 Honda Accord blow warm air when idling and cold air when moving?
Our 1997 Honda accord has had the same problem two times. Get the coolant recharged at your mechanic. We have had no problems for several years afterward.
