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#1
01-06-2006, 10:02 PM
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intermittent CEL for running rich-'97 Crown Vic
I'm posting for a friend. Hope someone can give us a suggestion.
The car is a '97 Crown Victoria with 80K or so, V8 engine, auto tranny. He is getting the engine light to come on. He's had the code read and it says it's running rich. I don't have the exact code. He can disconnect the battery and lose the light for a month or two. It will run somewhat poorly just before the light appears, then runs better, oddly enough, when the light does come on. I have no more info than that. Any ideas? Thanks for any help! 
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#2
01-24-2006, 03:15 PM
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Re: intermittent CEL for running rich-'97 Crown Vic
One bump for giggles...
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#3
01-24-2006, 06:07 PM
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Re: intermittent CEL for running rich-'97 Crown Vic
If the codes are P0172 and P0175, have the fuel pressure checked. It should be around 42-46 psi with key on engine not running, around 32-36 psi engine running. If it is higher than that, replace the fuel pressure regulator on the fuel rail.
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Being way2old is why I need help from younger minds The sooner you fall behind the more time you'll have to catch up.  HEY Y'ALL--READ THIS Here are some of our old vehicles for sale. 
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#4
01-25-2006, 05:45 PM
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Re: intermittent CEL for running rich-'97 Crown Vic
Thanks for the suggestion. I'll pass it on and if it does get fixed properly, I'll post the result!
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#5
01-29-2006, 12:09 PM
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Re: intermittent CEL for running rich-'97 Crown Vic
Quote:
This is common problem. http://v8sho.com/SHO/TSB982310MassAi...tamination.htm
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Jack of all trades...Master of none! Could someone please fix my Instant Email Notification? Please get back to us with your fix! Why did you buy a $40K vehicle and not a $100 Factory Service Manual?
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#6
01-31-2006, 10:30 PM
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Re: intermittent CEL for running rich-'97 Crown Vic
This is the post I've waited for. Thanks!! I can and have cleaned the MAF in my VW Jetta by placing it in a baggie of denatured alcohol, shaking gently, and allowing to air dry. Can this be done with the Ford MAF? I'm going to check online pricing for a new one...
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#7
02-09-2006, 10:01 PM
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Re: intermittent CEL for running rich-'97 Crown Vic
Bump.
Can I clean the MAF? Where is it exactly on this engine?
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#8
02-09-2006, 10:35 PM
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Re: intermittent CEL for running rich-'97 Crown Vic
Yes, you can clean the MAF I forget the name of the stuff but if you go to an autoparts store they will have the stuff to clean it, pretty much all it is a can of air. and the MAF is located right after the air filter on the air intake tube.
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#9
02-10-2006, 06:21 AM
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Re: intermittent CEL for running rich-'97 Crown Vic
Beauty. Thanks!
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#10
03-07-2006, 06:28 PM
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Re: intermittent CEL for running rich-'97 Crown Vic
I cleaned it by pouring denatured alcohol over it. There was clearly some gunk on it. It looked like metal filings on a magnet, but it was a small amount of grime. No CEL and the car has run well since! Thanks for all replies!
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