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weird isc issue 


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 Post subject: weird isc issue
Posted: Thu Feb 07, 2013 12:05 pm 
Oompa Loompa

Age: 31

Posts: 49

Joined: 1st Apr 2011

Gallery: 8 images

Ride: Eb II XR6

Location: kalgoorlie
WA, Australia

I've done a bbm and serpentine belt conversion on my eb and now it idles really high, 2000 rpm high. If I unplug the isc it settles down to where its meant to be. I've taken the isc off and cleaned it and tried resetting the computer but its still idling way to high. Any ideas what's going on and how to fix it? I've done a search but can't seem to find anyone with this specific problem.



EBII SXR6 White, manual, el dash and door trims, ba xr front seats, serpentine belt, electric fans and a turbo

 Post subject: Re: weird isc issue
Posted: Fri Feb 08, 2013 1:08 pm 
Getting Side Ways

Posts: 839

Joined: 1st Apr 2005

Gallery: 4 images

Ride: EF XR6 Wagon, AU2 XR6 VCT

Power: 148 rwkw

Location: Auckland
New Zealand

It sounds like the ECU is signalling the ISC to stay wide open all the time. What ECU are you using? It could be the ISC driver in the ECU not working properly. Borrowing another ECU should help narrow it down.



95 EF XR6 wagon, 17" FTRs, DBA, QFM, KYB/Koni, AU block, ported EF head, SS Inductions, Territory intake, MLS gasket, milled, Franklin RH24B cam, Coby headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip

 Post subject: Re: weird isc issue
Posted: Fri Feb 08, 2013 1:44 pm 

Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

first check for vacuum leaks, then adjust your base idle..
normally if you unplug the isc it should pretty much stall or just idle..

if there are no leaks, unplug the isc and lower the idle via the screw untill it gets to 500rpm or just stalls, then plug the isc back in and see how it goes...
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