Help Needed!!

ray23 · Post by **ray23** » Sat May 17, 2003 5:10 pm

need help!!...
hi guys..the RPM on my fto gpx keeps jumping up and down when i am slowing down...do u guys know what's the problem??i had replaced the ISC, flush the engine and yet this problem still remains there..advise needed..
thanks....

demonjay · Post by **demonjay** » Sat May 17, 2003 7:06 pm

Hey ray!
Sounds like it could be your stepper motor.
This page has some great info and pics of possible solutions.

http://www.pcward.org/pcwnet/diy/idleprobs.html

dAsh · Post by **dAsh** » Sun May 18, 2003 12:12 am

Demonjay, he says he's already replaced the stepper!

ray23 · Post by **ray23** » Sun May 18, 2003 11:07 pm

thank you demon......

demonjay · Post by **demonjay** » Mon May 19, 2003 7:52 pm

ooops....how did i miss that

MattG · Post by **MattG** » Mon May 19, 2003 8:48 pm

Have tried performing an ECU reset?

M@

YYgirl · Post by **YYgirl** » Fri May 23, 2003 11:15 pm

Hi, I have the similar problem as described by the website demonjay posted earlier. I am wondering, what does the cost ce$70 mean? what type of currency is that, i'm not sure if it's only my computer that can't see it properly. I need to purchase one of those ISC for my car. Thanks heaps for helping me!

dAsh · Post by **dAsh** » Sat May 24, 2003 12:57 am

yygirl, it's in euros.
Make sure you need to actually replace it first before spending the dough,
Clean the isc well as described on that web page, also clean the inside of the throttle body (q tips dipped in cleaner work well).
Disconnect the battery of your car for at least 30 mins, this will cause the engine management system to do a reset of the engine settings.
put it back together and see if it'll idle properly. (If you know how to use a multimeter, you can unscrew the two exposed screws on the stepper motor while it's out, and check the magnet coils, you'll notice there are 2 magnet coils inside the small cover on the outside of the stepper motor, each has 3 solder connections, set your multimeter onto the 'speaker' setting where it will make noise if a contact is made, and proceed to test the connections of the centre pin of each magnet, to each of the outside pins of the same magnet, both should 'sound off', if one pin fails, you have a dead coil) This is what happened to mine, and as I couldn't find a replacement coil, I had to buy a new stepper myself (available for $250 from nardek in Sydney)

calibraboy · Post by **calibraboy** » Sat May 24, 2003 8:08 pm

can anyone tell me how to reset the ecu

thanks

MattG · Post by **MattG** » Sun May 25, 2003 12:12 pm

Disconnect the battery for about 15mins -30mins. After this just reconnect the battery, and drive the car around as you would normally. You will probably find that the car will behave a little strange during this time, until it "re-programs" itself.

M@

YYgirl · Post by **YYgirl** » Sun May 25, 2003 10:35 pm

thanks DASH, I will sure try it. I hope it only needs cleaning!!

FTO AUSTRALIA

Help Needed!!

Help Needed!!

how do u reset the ecu