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02-13-2017, 01:05 AM
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#1 | |
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AF Newbie
Join Date: Oct 2009
Location: Rock Hill, South Carolina
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1999 CVP71 multiple random misfires
When I took a turn today the engine suddenly lost compression, started sputtering loudly and the engine light came on. My Bosch code reader said P300 multiple random misfires. Where should I start to ID the problem? Thanks in advance. -CLL
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02-21-2017, 06:17 PM
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#2 | |
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AF Enthusiast
Join Date: Sep 2006
Location: Athens, Georgia
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Re: 1999 CVP71 multiple random misfires
I would start by checking the distributor cap,rotor then ohm plug wires should be around midpoint on the meter, check plugs.
If this is good check for a partially plugged injector. |
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02-22-2017, 09:48 PM
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#3 | |
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Confoundingly Lucid
Join Date: Oct 2005
Location: Mesa, Arizona
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Re: 1999 CVP71 multiple random misfires
No distributor cap or wires on these, they use COPs.
My gut tells me this has something to do with the PCM, or the connection to the PCM. It is under the dash on the driver side, there is a 10mm bolt that holds the harness onto the PCM. Remove this bolt, which pulls the harness off, then reinstall / tighten the bolt and see if your issues go away.
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1988 9C1 - Modified LM1 @ 275HP/350TQ - TH700R4 - 3.08 8.5" Disc Rear - see it at http://www.silicon212.org/9c1! 2005 Crown Vic P71 - former AZ DPS - 4.6 liters of pure creamy slothness! 1967 El Camino L79/M20 old school asphalt raper Remember - a government that is strong enough to give you everything you need, is also strong enough to take everything you have. |
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