1987 cadillic wont idle motor control failer code

Replace the IAC

does it restart if you u use starting fluid

what does Iac mean and how do i replace it

Idle Air Control IT is on the throttle body.

thank you very much

is your car a allante??????

push off amd warmer buttons on the a/c panel.when u see all segmentes light release write the codes down and come back.

it is allanta ck codes E052 ecm andb552

check your battery cables for a good connection.those codes are because your loosing battery power to the pcm and bcm computers.not the isc

thank you again car idles 3500 rpm now i held gas pedel down to keep it running ihad to shut off key because it would not idle down

look at the thottle youll see the idle control sesor there.its the 1 that has a screw you losen so u can set it whyll installing.when installing a new sensor, youll need to adjust the sensor to 5volts then tighten the set screw.

thanks i will try that

1987 allante code B481 after car dies

that code is a abs fault.nothing to do with the isc sensor.clear the codes by using the low fan switch for no and hi for yes.it gos through the codes and stops on pcm push on low fan button untill u see clear pcm codes.then hit the hi button.then it will say pcm codes cleared.do it for bcm and all other computers with codes.you need to clear all the cpus.then recheck the codes.

i replaced battery ran 10 min then it idled fine tried to drive no power

check the codes again!!!

Cadieman no fault codes on1987 allante think i ck fuel psi what should it be