Random DE P0300
#1
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Random DE P0300
2004 Z MT with about 104K miles. I randomly get a P0300 but only when the car has sat for a few days with out starting it. It'll start up with a rough idle and then the idle is fine after a minute or so. I have a UltraGauge which reads many things like engine temp, volts, MPG etc and also reads engine codes (mainly the reason i have on the car). I daily drive this car and I never get the code when im driving it daily. I clear the code and does not come back on. Car runs fine with no issues. As for mods car has Greddy catback, JWT pop charger everything else is stock. I dont drive the car hard. Only other time it gave me a code was when one of the ignition coil went out. I replaced it with a new one and code was gone but that was a while back. What do you guys think?
#2
350Z/370Z Tech Moderator
MY350Z.COM
MY350Z.COM
2004 Z MT with about 104K miles. I randomly get a P0300 but only when the car has sat for a few days with out starting it. It'll start up with a rough idle and then the idle is fine after a minute or so. I have a UltraGauge which reads many things like engine temp, volts, MPG etc and also reads engine codes (mainly the reason i have on the car). I daily drive this car and I never get the code when im driving it daily. I clear the code and does not come back on. Car runs fine with no issues. As for mods car has Greddy catback, JWT pop charger everything else is stock. I dont drive the car hard. Only other time it gave me a code was when one of the ignition coil went out. I replaced it with a new one and code was gone but that was a while back. What do you guys think?
Exact same experience. I got lucky, when the DTC showed up it showed the exact cylinder, eg, P0304 instead of “random P0300”. Replaced ‘em all anyways. Cheap. OE units for about $125.
#3
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thanks thats what i was thinking but since it hasnt given me an exact cylinder number im not sure if that will be the issue. Im hoping i will since its an easy fix and not expensive. I did think of just replacing all of them all together.
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eyeSea
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08-01-2013 08:18 PM