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08-11-2010, 07:36 PM | #1 | ||
FF.Com.Au Hardcore
Join Date: Jun 2005
Location: Bexley, Sydney
Posts: 658
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The ol girl has had a rough running problem for a while now which i put up with but it escalated this afternoon.
Essentially for a while now it has run rough and idled low while cold, would occasionaly come close to stalling but then would come good. On the odd occasion this rough running condition would appear intermittently also while the car was warm but it wasn't as common. Most of the time if I turned the car off for 10 seconds and restarted her she would be good which looks more like a sensor rather than something mechanical ala leaking injectors. This afternoon the problem was there to stay even when the car was warmed up. Everytime I would pull up to the lights the revs would dip down to around 200rpm but then it would pick itself up but still idled abit low/rough (about 600rpm). I should mentioned, apart from at idle the car runs well and pulls hard. What I have done: New Fuel Filter 12,000km ago 23,000km old platinum plugs New MSD Leads and Coils Set TPS to .93v Cleaned TB 5k ago cleaned isc 5k ago cleaned maf 5k ago New Cam Sync and sensor New Oxygen sensors I disconnected the ISC and it was considerably worse (it actually stalled) I disconnected with car running in park and it made a instant big change to revs which would imply it is working. Would love any ideas in getting rid of this gremlin!!
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Formerly LV Focus XR5, AU Fairmont Ghia V8 & EBII Fairmont I6. Now...... 2012 FG MK2 XR6 Turbo - Manual & Luxury Pack - 302rwkw 2019 Escape St-Line |
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08-11-2010, 08:01 PM | #2 | ||
FF.Com.Au Hardcore
Join Date: Jun 2005
Location: Bexley, Sydney
Posts: 658
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EDIT:
I disconnected THE MAF with car running in park and it made a instant big change to revs which would imply it is working.
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Formerly LV Focus XR5, AU Fairmont Ghia V8 & EBII Fairmont I6. Now...... 2012 FG MK2 XR6 Turbo - Manual & Luxury Pack - 302rwkw 2019 Escape St-Line |
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09-11-2010, 01:15 PM | #3 | ||
FF.Com.Au Hardcore
Join Date: Jun 2005
Location: Bexley, Sydney
Posts: 658
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Alright, i've worked out the problem was the MAF. When I disconnected it the stalling problem dissapeared, albeit ran hugely rich, spitting unburnt petrol from exhaust but I guess this is normal if your running without a MAF.
My question now is, what's the standard MAF size for a 175/185kw AU Windsor? I've read some places it's 70mm, others 73mm and others say 75mm. Also, does it matter if my replacement MAF comes from a car with 19lb or 24lb injectors?
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Formerly LV Focus XR5, AU Fairmont Ghia V8 & EBII Fairmont I6. Now...... 2012 FG MK2 XR6 Turbo - Manual & Luxury Pack - 302rwkw 2019 Escape St-Line |
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