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94 honda del sol : when the car warms up it revs to around 2000 then drops bout down to around 1000 in 2 sec intervals constantly any advice ? and any way to check for a particular part dont have much cash to spend on multiple parts if they work fine thanks alot
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I believe if you are just changing it may not need to reset the ecu. but if you have a code and it is a faulty 02 sensor then you need to change the sensor and erase the code by disconnecting the ground cable of the battery for some time (I have heard from 10 sec to 2 min).
check your cable that runs ur throttle and follow it at the end it has a plastic piece, my friend had a honda del sol and the plastic piece was broke causing the cable to come loose sometimes and idle high then drop then high then drop etc. just a thought
this is what a automatic trans does when it is failing, it will need to be torn down and inspected for worn and damaged parts, there are any number of things that cause this, leaking valve body, front pump O ring leaking, u will most likely need it rebuilt.
I know exactly what you are talking about, it will go high to about 2 to 4k rpms, then back down to 1k in intervals of about 3 seconds. It is either the idle air position sensor, or the throttle body position sensor, hondas are famous for it. The parts are cheap, about $20-$30, and fairly easy to install when you find it. I suggest a Haynes Manual for installation to make it a lot easier if you don't know where it is. Good luck, hope all goes well.
As silly as it sounds, I got stuck for about an hour at a grocery store because my 94 wouldn't start. I tried everything! Nothing worked. The problem was my clutch wasn't going down far enough because my floor mat was in between!!!! ROTFL Was very embarrassed but very relieved it wasn't something huge. I was surprised how many people have actually experienced this.
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