Au sr1 v8 rough idle

[Boza]

Hey au gurus maybe some of you on here can help me out.
I have an au sr1 xr8 ute with 147,000kms on it but the engine has a rough idle i have replaced the leads & plugs i cleaned the maf sensor i also gave the throttle body a good clean but the car still runs like crap at idle but is smooth as silk throught the rev range it has me beat and don't know what it could be

Also can i get a few suggestions on upgrading the utes stereo its woefull at the moment.

[amiers]

have you checked the ISC? if not give it a clean and make sure it is working. i had a rough idle problem that turned out to be the wire to the ISC was broken. so check it has power, the wire can be broken in the loom where you cant see it.

[RG]

If the above doesn't sort it then look at the HEGO sensors in the exhaust and the coil packs, they're only good for 80-90k.

[Boza]

Originally Posted by amiers

have you checked the ISC? if not give it a clean and make sure it is working. i had a rough idle problem that turned out to be the wire to the ISC was broken. so check it has power, the wire can be broken in the loom where you cant see it.

what does the isc look like and where is it located

[Boza]

Originally Posted by RG

If the above doesn't sort it then look at the HEGO sensors in the exhaust and the coil packs, they're only good for 80-90k.

are the HEGo sensor the same as the O2 sensonsor or is it another sensor in the exhaust system.

[amiers]

Originally Posted by smoodiver

what does the isc look like and where is it located

its on the back of the throttle body, 2 10mm bolts. it's a round cylinder with a plug running into it.

[CFOUR]

clean/replace you're fuel filter.

[Boza]

Originally Posted by CFOUR

clean/replace you're fuel filter.

done it at the same time i did the plugs/leads even changed the oil but still runs like poo at idle