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Car will run fine for about a 45 seconds when cold then starts to missfire real bad but after 5 mins will run ok turbo gauge read .2 at tick over when misfiring but works fine when misfire stops. Cel on and sometimes flashing
Faults codes are as follows
Multiple misfire
Misfire 1/3/5/6/4
And this little beauty. P1585 missfire low fuel in tank , or something like that, I can't remember the actual verbiage
Any ideas???
Yep to the above Checked everything that is obvious but trying to find out what p1585 is the porsche description is a bit silly. ( missfire. with no fuel in the tank)
CEL flashing means to stop car immediately! Since you've checked ignition system, next is (and obvious with code) fuel. Fuel filter, fuel pump, injector health. So only cylinder 2 is not misfiring? Change fuel filter first if it hasn't been done in a while. Assure you have good gas and ONLY good gas. Then check pressure at rail. I would not drive it. Multiple, continuous misfires can do some damage. After you have resolved fuel issue, then replace plugs, dist/rotor caps. They'll take a beating from continuous misfires.
Looked at that code and it also involves "vehicle idle control", so make sure your IAC valve is clean also. Maybe do that first, since it's easiest to attack, then fuel filter if it's been in there a long time.
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