Check Engine Light +

Nevers · 03-02-2010, 10:59 AM

**** so I reset it back on the 20th, and it came back today this time p0305, Cylinder 5 misfire! WTF!

Anyway I have an appt to take it in tomorrow bright and early to the dealership, any advice or words of what to expect from tomorrow? What should or shouldnt I do?

Thanks

Alchemy · 02-12-2011, 02:31 PM

Im having the same prob. My car is throwing a p0300 too. I had reset it but it came back.

JonnieN · 02-14-2011, 03:04 AM

Any update on these P0300 code?

EazyD · 02-15-2011, 09:56 AM

The OP started another thread here: Took to Dealership - Royal Purple

Dreezy562 · 02-15-2011, 09:23 PM

I idle at 600. Anything higher than that and the car is cold or ur idling high

aar0n.boi30 · 02-25-2016, 10:57 AM

my check engine light came on also but this was after I checked my oil and water in my radiator could it be due to that also I left the hood up for an entire night and put water in my radiator any help would be great thanks

Chuck33079 · 02-25-2016, 11:21 AM

Quote:

Originally Posted by aar0n.boi30

my check engine light came on also but this was after I checked my oil and water in my radiator could it be due to that also I left the hood up for an entire night and put water in my radiator any help would be great thanks

Highly unlikely any of that caused a CEL. Go get the code scanned and we can help diagnose it further.

barncobob · 02-25-2016, 11:50 AM

maybe try the unhooking the battery trick, cures alot of ailments

Chuck33079 · 02-25-2016, 12:29 PM

Quote:

Originally Posted by barncobob

maybe try the unhooking the battery trick, cures alot of ailments

It'll clear the code, but if the code is indicative of a larger issue you won't know what's going on with the car. Get the code scanner and figure out what you're dealing with, then clear it.

imjello · 02-25-2016, 12:41 PM

Codes should clear once the issue is resolved. Check your air filter and all the intake connections. Mine threw misfire codes when my intake was adjusted by the dealer and it was found falling off. Stillen intake, 2010

SouthArk370Z · 02-25-2016, 12:47 PM

Quote:

Originally Posted by barncobob

maybe try the unhooking the battery trick, cures alot of ailments

Quote:

Originally Posted by Chuck33079

It'll clear the code, but if the code is indicative of a larger issue you won't know what's going on with the car. Get the code scanner and figure out what you're dealing with, then clear it.

Killing the power to the ECM is what I would consider an all-else-has-failed option. As per Chuck33079, any DTCs will be cleared, plus, the ECM will have to relearn the engine and the emissions system will not pass until you have made several trips.

It doesn't hurt anything, so give it a try if you like. But grab the DTCs before you do.

02-12-2011, 02:31 PM	#17 (permalink)
Alchemy A True Z Fanatic Join Date: Jan 2009 Location: Jersey Age: 44 Posts: 4,855 Drives: to acquire tickets Rep Power: 3524	Im having the same prob. My car is throwing a p0300 too. I had reset it but it came back. __________________ Ryan 314WHP \| 260LB-FT \| STILLEN \| KONI \| SWIFT \| STOPTECH \| Z1 \| PROJECT MU \| CNT \| UPREV \| FORGESTAR \| BRIDGESTONE \| PWJDM \| ENEOS \| MOTUL

02-15-2011, 09:56 AM	#19 (permalink)
EazyD A True Z Fanatic Join Date: Nov 2009 Location: Massachusetts, USA Posts: 1,211 Drives: 2010 6MT Sport pkg. Rep Power: 26	The OP started another thread here: Took to Dealership - Royal Purple __________________ Pearl White 2010 370Z Sport, Stillen CBE, tint, K&N drop-in filters, GT-R start button, Kenwood DNX-6980 with backup cam, LED bulbs, Raceseng shift knob.

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03-02-2010, 10:59 AM	#16 (permalink)
Nevers Base Member Join Date: Jul 2009 Location: Virginia Age: 37 Posts: 32 Drives: 2015 370z Nismo Tech Rep Power: 16	**** so I reset it back on the 20th, and it came back today this time p0305, Cylinder 5 misfire! WTF! Anyway I have an appt to take it in tomorrow bright and early to the dealership, any advice or words of what to expect from tomorrow? What should or shouldnt I do? Thanks

02-14-2011, 03:04 AM	#18 (permalink)
JonnieN Base Member Join Date: Apr 2009 Location: Upstate, NY Posts: 153 Drives: 370z PW 6MT Rep Power: 16	Any update on these P0300 code?

02-15-2011, 09:23 PM	#20 (permalink)
Dreezy562 Enthusiast Member Join Date: Oct 2010 Location: Long beach, ca Posts: 419 Drives: 40th Rep Power: 15	I idle at 600. Anything higher than that and the car is cold or ur idling high

02-25-2016, 10:57 AM	#21 (permalink)
aar0n.boi30 Base Member Join Date: Aug 2015 Location: West Covina CA Posts: 4 Drives: 2013 370z 5speed Rep Power: 10	my check engine light came on also but this was after I checked my oil and water in my radiator could it be due to that also I left the hood up for an entire night and put water in my radiator any help would be great thanks

02-25-2016, 11:50 AM	#23 (permalink)
barncobob A True Z Fanatic Join Date: Sep 2015 Location: hangtown, CA Posts: 1,164 Drives: 16 370Z auto Rep Power: 590	maybe try the unhooking the battery trick, cures alot of ailments