ISC pros.. one last question

androoz · Post by **androoz** » Fri Apr 30, 2004 3:53 am

when i bought my car.. the owner said that the idle speed control was stuck on high.. so therefore he disconnected it and manually warms it up on cold starts..

today i went through the "Throttle Position Sensor and Idle Speed Servo Adjustment Procedure" and proceeded to try and see if it was really "stuck" on high.. the only thing i didnt follow from the procedure was checking the voltages between terminals 1 and 2 is between 0.45 and 0.51.. i plugged it in, lossened the cable tension etc. and started it up.. like the guy said.. it was stuck on high.. it idles fine when u start, but when i drove it.. it wont idle properly.. it stays above 1500rpm..

ok long story.. but my questions are as follows:

1) would making sure that my voltage is between 0.45 and 0.51v make a difference to how my car idles?

2) from my description above, could my "idle up solenoid" be damaged and now useless?

3) is the idle up solenoid what controls my cars "cold starts" and automatically revs the car up on cold starts and lets the revs back down when the car is warmed up?

4) does the idle up solenoid have an effect on how long it takes my car to choke before it actually turns on? if not, what does?

androoz · Post by **androoz** » Sat May 01, 2004 2:20 am

seems like this is something that most starions have a problem with.. i just bought the multimeter today and will proceed to do the procedure properly.. will let you guys know how i go :?

Project2501 · Post by **Project2501** » Sat May 01, 2004 2:21 pm

Id say the multi-meter part is the crux of the whole procedure. Let me know how you go, I've performed this several times on several starions with good effect.

cheers

tom.

androoz · Post by **androoz** » Sat May 01, 2004 9:52 pm

i proceeded to do the adjustment procedure but with no luck.. i did everything i was suppost to, several times too..

my problem is still the same.. its a little better than the first time when i tried it with no multimeter.. when the revs WILL NOT RETURN TO IDLE AT ALL..

today when i measured the correct voltage of the variable resistor, and plugged in my IDLE SPEED CONTROL, it starts okay.. idles okay (eninge was already warm though).. but when i proceed to drive it, i rev up to say 3000rpm, and shift to neutral.. and there lies the problem, the car takes TOO LONG TO RETURN TO IDLE REVS.. if i just wait on neutral and stop the car, it will eventually go to the idle speed i set it to.

is there any other way i can try to get my ISC and TPS (Throttle Position Sensor) working properly?

ProZac · Post by **ProZac** » Sat May 01, 2004 10:28 pm

Im fairly sure i had the same problem with my 85 import... same symptoms anyhow, setting the ISC and TPS also didnt help. I never did figure it out unfortunatly :?, i tried replacing the ISC aswell, but to no avail. I just left the ISC unplugged and warmed the car up with my foor on the throttle in the morning.

scum · Post by **scum** » Sat May 01, 2004 10:43 pm

I rebuild the little ICS thingy in my cordz years ago. was a pain in the butt from memory. but it stoped that taking too long to idle prob.

hey androoz, according to your avatar, your pretty hot for a bloke.

how much did that cost to get done? :D

SpidersWeb · Post by **SpidersWeb** » Sat May 01, 2004 10:46 pm

$200 to 10c depending on what country your in.

What I want, is that badge on the back of his staz! I have just a sticker, I want the proper chrome badge.

androoz · Post by **androoz** » Sat May 01, 2004 10:51 pm

scum wrote:hey androoz, according to your avatar, your pretty hot for a bloke. how much did that cost to get done? :D

lol scum.. lets just say it was priceless.. :D

ALSO scum, does it sound like mine needs a rebuild too? if so, someone on the forums has one for sale!

androoz · Post by **androoz** » Sat May 01, 2004 10:52 pm

SpidersWeb wrote:What I want, is that badge on the back of his staz! I have just a sticker, I want the proper chrome badge.

sorry to have misled you SpidersWeb, but that isn't my starion.. it has wat i would want for my starion though.. and thats not the badge.. the spoiler! rofl

androoz · Post by **androoz** » Sun May 02, 2004 2:31 pm

i was just reading a post on tristarion about the cold start problems..

http://www.tristarion.com/forums/index. ... opic=13665

im wondering if this could also be my problem?

scum · Post by **scum** » Sun May 02, 2004 3:13 pm

I cant remember..... I think crap gets in it and jams it up. needs clean and grease. I think I built mine out of about 5 of them coz they all had crap bits. I seem to remember something about the little contacts inside had worn completely off on all but 1 I think. (these are the ones that don’t move when you put voltage straight onto it) on a cordia I had be4 that I rebuilt it but made it really stupid, at that time I didn’t have spares to rip to bits so I think I connected wires straight onto the motor, stacked some washers in there to restrict the movement. then hooked it up to a 2 pole normally off switch on the dash. push switch up and idle goes to 1400, push down idle goes to 900.

androoz · Post by **androoz** » Sun May 02, 2004 8:31 pm

sounds like it was a good idea.. but if thats wat it takes for me.. id rather manually rev it up to warm temps.. :? i might give a spare ISC a try though.. and if that doesnt work.. well screw it then :(

TD05 · Post by **TD05** » Tue May 04, 2004 3:30 pm

my ISC is not even connected. never been, it starts everytime. cold or hot weather, so I don't think your problems is the ISC... I'd be looking at the air temp sensor in the AFS inside the air filter can, should be about 2.4k at 25C...

androoz · Post by **androoz** » Wed May 12, 2004 1:28 am

TD05 wrote:my ISC is not even connected. never been, it starts everytime. cold or hot weather, so I don't think your problems is the ISC... I'd be looking at the air temp sensor in the AFS inside the air filter can, should be about 2.4k at 25C...

what points do i measure to get the 2.4k

is this resistance..?

androoz · Post by **androoz** » Wed May 19, 2004 11:44 pm

scum wrote:(these are the ones that don’t move when you put voltage straight onto it) on a cordia I had be4 that I rebuilt it but made it really stupid, at that time I didn’t have spares to rip to bits so I think I connected wires straight onto the motor, stacked some washers in there to restrict the movement. then hooked it up to a 2 pole normally off switch on the dash. push switch up and idle goes to 1400, push down idle goes to 900.

scum, i did some thrashing of my starion in my garage just before

i finally took this bit of advice from you.

"these are the ones that don’t move when you put voltage straight onto it" <- didnt really notice that part

"stacked some washers in there to restrict the movement" <- didnt read that part either

so i set out to play with my ISC again.. took off the ISC and worked out which wires to feed it 12v to and the ISC moved up.. reversed the connections and it went back down.. i go sweet and proceeded to put it back into place. switch on the car and go to my (lil helper) brother, "watch this, ima make the car rev up!"

boy did it rev up.. :glare: little did i realise actually HOW MUCH the ISC would push down the throttle.. it pushed itself out the MOST it could go.. there i was listening to my engine rev the f@#* out of itself.. i didnt know what to do, so i ran over to switch it off.. still revving (VERY LOUDLY) as i ran, when i got to the car, i turned the key off.. but it didnt go off.. i forgot i had a timer! :o then i pressed it and off it went

i think thats the last time i try to play with the ISC.. LOL it stays *DISCONNECTED* :x

please dont laugh at me...

please? :D

Austarion

ISC pros.. one last question

ISC pros.. one last question

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