Just bought an 87 ciera from my grandma, when I start it, it idles high but does not idle low when warm. But when i turn it off and start it agin its fine, idles rite. Im thinkin the computer or a sensor. please help.

Hard to say with this little information... Got any other details that might help? Does your Check Engine light come on at all?

yes, as a matter of fact it does come on. What does this mean?

hi did you find out what the problem was?????i have the same problem

I had this problem and it turned out to be the choke, but Mines carburated and probably isnt any help to this, but i delt w/ mine for months and spent alot of money so, just a thought that might save you some time.

this is weird i start car idles high ..i put it in drive then idles down no sevice light.......leave it in park idles high then light comes on,,,still high ilde drive off and light goes out.......code 24

From what I found, this is the description of code 24:

Vehicle Speed Sensor Sensor/Circuit.When engine speed was between 1200 and 4400 RPM and throttle position angle was less than 2%, the MAP signal showed low voltage (high manifold vacuum) for at least 5 seconds.

Hope that helps.

do i need to change the map sensor,,,,,all ready changed speed sensor???? thank you

then there could be something wrong with the speed sensor, or the circuit connecting it. There would be a different code for a MAP sensor error. The description is quite technical, I appologise.

Not to try and hi-jack the thread, but it may bring up some more info...

88, would this cause the car to go into open circuit mode (code 24) (or whatever it is to make the car use tons of un-needed gas) cause I have a feeling thats my exact problem, but I'm scraping pennies so I cant exactly replace it right now...

hi i think i found the problem...the park nerural switch out of ajustment... runs fine now .......thank you for all your help

is it hard to replace this switch,,,,,,,it needs replaceing its doing it again thanks

You haven't hijacked it more than it has been hijacked already.



Please start a new thread for your own questions. While you may have the same situation, taking "control" of someone else's thread is somewhat rude.

[hijack="andrewk"] Hope you get it fixed... it doesnt sound fun...[/hijack]

87delta, a lot of codes will throw the computer into open loop mode, therefore burning a LOT of gas. The best idea, is to check your computer for error codes. There might be more than one error code. Let me know (start a new thread if you will)