5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

IDLE JUMPING OIL PRESURE JUMPING

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Old 07-23-2008, 09:06 PM
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kurtban88302
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Default IDLE JUMPING OIL PRESURE JUMPING

I HAD THIS PROBLEM FOR AWHILE MY CAR IDLE JUMPS UP AND DOWN AS SOON AS I START IT THE THE OIL PRESURE JUMPS MY MODS ARE TRICKFLOW INTAKE UPPER LOWER FUEL PRESURE REGULATOR SET AT 40PSI TIMING JUST SET PULLIESMAC HEADERS 24LBPND INJECTORS 65MM THROTLE BODY BASSINI CAT BACK KN AIR FILTER MY QUESTION IS CAN IS BE THE COMPUTER NOT KEEP UP WITH ALL THOSE MODS SINCE I DONT HAVE AN MASS AIR CONVERSION
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Old 07-23-2008, 09:10 PM
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mjr46
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Default RE: IDLE JUMPING OIL PRESURE JUMPING

with idle erratic of course oil pressure will fluctuate as it is rpm dependant.....is the car still SD??? And what cam??? also enough with the caps!!![8D]
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Old 07-23-2008, 09:11 PM
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kurtban88302
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Default RE: IDLE JUMPING OIL PRESURE JUMPING

sorry yes its sd no cam
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Old 07-23-2008, 09:17 PM
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mjr46
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Default RE: IDLE JUMPING OIL PRESURE JUMPING

first I'd run a koer test and check for codes and after that make sure Iac is clean and operational and there are no vaccum leaks
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Old 07-23-2008, 09:21 PM
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kurtban88302
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Default RE: IDLE JUMPING OIL PRESURE JUMPING

thanks where do they sell a computer flasher for this car
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Old 07-23-2008, 09:58 PM
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93 LX FiveO
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Default RE: IDLE JUMPING OIL PRESURE JUMPING

walmart sells the ford obd-1 scanner
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Old 07-23-2008, 10:14 PM
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mjr46
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Default RE: IDLE JUMPING OIL PRESURE JUMPING

google DIY koer test and you'll find instructions on how to do it yourself
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Old 07-23-2008, 10:34 PM
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AdderMk2
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Default RE: IDLE JUMPING OIL PRESURE JUMPING

lets see, for starters, you are running 24# injectors on a SD system... thats a big no no right there.

swap back to 19# injectors, or do a MAF conversion with a calibrated maf before you do ANYTHING else
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