My 94 accord idles up and down up and down then smooths out when warm then when
1994 Honda Accord

My 94 Accord idles up and down up and down then Smooths out when warm then when

(1994 Honda Accord)
It seems to have a throttle position sensor problem it does similar to a carbureted engine it goes up and down up and down with the idle then the the light comes on check engine and then when you press the gas or a warms up it Smooths out and will run just great you let off the gas to idle goes up and down up and down I'm thinking it's the throttle control valve but this is my first time to I'm a senior 60 years old I guess that's a senior retired from working on vehicles and mainly body work and framework painting give me an idea and I'm sure I find the problem making resolve it
What seems to make the problem better or worse? Yes it seems to be worse when the engine is cold
How long have you had this problem? For about two weeks maybe two and a half weeks sometimes it has no problem at all one day we'll be good the next day will be bad
Tags: honda, accord
1 answer & 1 comment
Popular Answer
on November 10, 2019

Low engine coolant level will certainly cause idle up down !

I know - it sounds crazy..
Sign in to reply
on November 10, 2019

Make SURE coolant level is completely FULL .. Otherwise testing with capable scan tool may be necessary.

Good luck!
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on November 10, 2019

Low engine coolant level will certainly cause idle up down !

I know - it sounds crazy..
Sign in to reply
on November 10, 2019

Make SURE coolant level is completely FULL .. Otherwise testing with capable scan tool may be necessary.

Good luck!

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