Random Misfiring(NEED ADVICE)

VIKTUR · 22-11-2014, 21:55

Hi i driver a Nissan Pathfinder 2006 4x4, noticed it was not running smooth so i had it checked out ,machine reports Random Misfiring and the mechanic advises i change the ECU.

Please advice

solarman216 · 22-11-2014, 22:06

Quote:

Originally Posted by VIKTUR

Hi i driver a Nissan Pathfinder 2006 4x4, noticed it was not running smooth so i had it checked out ,machine reports Random Misfiring and the mechanic advises i change the ECU.

Please advice

I do not know anything about the Pathfinder, but most unlikely to be ECU unless it is a known problem ie bad batch of units etc, more likely are the information inputs to the ECU like MAF, Crank position sensor, injector lift sensor etc, Rick

solarman216 · 22-11-2014, 22:08

forgot to say do you have any fault codes? but on a 2006 I am not sure how you read them, Rayf is your man on here, Rick

VIKTUR · 22-11-2014, 22:24

"I have a 2006 Nissan Pathfinder 4.0 V6... Had ECU replaced . Now is throwing a random misfire code P300... what are these code and can one cause the other? Help!"

VIKTUR · 22-11-2014, 22:29

thanks Solar man,where Rayf pleaseeeeee

solarman216 · 22-11-2014, 22:39

Quote:

Originally Posted by VIKTUR

thanks Solar man,where Rayf pleaseeeeee

he is a member on here, on most nights, rest assured he will see your post, what he does not know about ECU etc is not worth knowing, look in the members list if you want to send him a PM he is rayf3626 or such numbers, Rick

VIKTUR · 23-11-2014, 06:17

Thanks dude

jims-terrano · 23-11-2014, 09:05

Why did you have the ECU replaced?

Was the replacement brand new or second hand, is it possible the replacement is not the correct type for your car. As said normally its a sensor rather than the ECU.

Is there a manual in the downloads section for the Pathfinder? Or a manual for another vehicle with the same engine perhaps.

Best of luck

rayf3262 · 23-11-2014, 09:38

The ECU should pretty much be the last item on your check list.
I am guessing that as the fault code (P0300) you have been given is generic EOBD code this check was not carried out by a Nissan dealer?
P0300 is not very helpful as it can be caused by many ancilary items. I'd suggest getting the checked with Nissan Consult diagnostics, this is far more likely to provide a more specific DTC or fault code.
The ECU should pretty much be the last item on your check list.

VIKTUR · 24-11-2014, 07:03

Thanks Ray and jim,i am just sitting on a time bomb here in Nigeria so difficult to get a proper Nissan dealer.

thank for all the updates,one thing i noticed though,the ECU in the car had 7Z while the new one has BH don know that meant anything anyways.

On the reason why it was changed,long story,some guy messed with the Tube water heat that started pouring hot steam water on the the fuse box and what i was told next was that it short circuited to the ECU and all and all bla bla bla.

so thats were i found my self now,my ride is 3 years ld and never came up with issues just this silly mistake now.

Sweety · 24-11-2014, 21:18

Yours the 4L V6 petrol ? if it is has the spark plugs & plug leads been changed ? the problem could also be the coil pack

solarman216 · 24-11-2014, 21:26

Quote:

Originally Posted by Sweety

Yours the 4L V6 petrol ? if it is has the spark plugs & plug leads been changed ? the problem could also be the coil pack

Oh ffs I never imagined we were talking PETROL whole different ball game, did say I know nothing about Pathfinders, Rick

Sweety · 24-11-2014, 21:53

Quote:

Originally Posted by solarman216

Oh ffs I never imagined we were talking PETROL whole different ball game, did say I know nothing about Pathfinders, Rick

As the chap is in Nigeria I think his truck & others out there will poss have the US spec engines which are mainly petrol V6's & I think they also get some big diesel engines aswell not the crappy 2.5dci lumps we get

oh & then there is all the Nismo upgrades to

(only know this from being on a US forum)

VIKTUR · 25-11-2014, 08:08

Hey Sweety,very on point,my truck is US spec engine which are petrol V6' and also the spark plugs just got changed.

Could that be the cause?

rayf3262 · 25-11-2014, 08:19

Your mech. gave you a DTC of P0300, when this code is stored the will also be another stored DTC indicating the cylinder that caused the issue.
P030X where X indicates the cylinder number.
There will be multiple entries for each cylinder if needed.

22-11-2014, 21:55	#1
VIKTUR Junior Member Join Date: Oct 2014 Location: Nigeria Vehicle: PATHFINDER 4.0 LE 2006 Posts: 13	Random Misfiring(NEED ADVICE) Hi i driver a Nissan Pathfinder 2006 4x4, noticed it was not running smooth so i had it checked out ,machine reports Random Misfiring and the mechanic advises i change the ECU. Please advice

22-11-2014, 22:08	#3
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,427	forgot to say do you have any fault codes? but on a 2006 I am not sure how you read them, Rayf is your man on here, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

22-11-2014, 22:24	#4
VIKTUR Junior Member Join Date: Oct 2014 Location: Nigeria Vehicle: PATHFINDER 4.0 LE 2006 Posts: 13	HELP "I have a 2006 Nissan Pathfinder 4.0 V6... Had ECU replaced . Now is throwing a random misfire code P300... what are these code and can one cause the other? Help!"

23-11-2014, 09:38	#9
rayf3262 Senior Member Join Date: Nov 2009 Location: Norfolk, Poringland NR14 Vehicle: Terrano 3.0 SVE 2002 Posts: 1,549	The ECU should pretty much be the last item on your check list. I am guessing that as the fault code (P0300) you have been given is generic EOBD code this check was not carried out by a Nissan dealer? P0300 is not very helpful as it can be caused by many ancilary items. I'd suggest getting the checked with Nissan Consult diagnostics, this is far more likely to provide a more specific DTC or fault code. The ECU should pretty much be the last item on your check list. __________________ Remember what the dormouse said: Feed your head....

25-11-2014, 08:19	#15
rayf3262 Senior Member Join Date: Nov 2009 Location: Norfolk, Poringland NR14 Vehicle: Terrano 3.0 SVE 2002 Posts: 1,549	Your mech. gave you a DTC of P0300, when this code is stored the will also be another stored DTC indicating the cylinder that caused the issue. P030X where X indicates the cylinder number. There will be multiple entries for each cylinder if needed. __________________ Remember what the dormouse said: Feed your head....

22-11-2014, 22:29	#5
VIKTUR Junior Member Join Date: Oct 2014 Location: Nigeria Vehicle: PATHFINDER 4.0 LE 2006 Posts: 13	thanks Solar man,where Rayf pleaseeeeee

23-11-2014, 06:17	#7
VIKTUR Junior Member Join Date: Oct 2014 Location: Nigeria Vehicle: PATHFINDER 4.0 LE 2006 Posts: 13	Thanks dude

23-11-2014, 09:05	#8
jims-terrano Senior Member Join Date: Sep 2004 Location: UK Posts: 12,965	Why did you have the ECU replaced? Was the replacement brand new or second hand, is it possible the replacement is not the correct type for your car. As said normally its a sensor rather than the ECU. Is there a manual in the downloads section for the Pathfinder? Or a manual for another vehicle with the same engine perhaps. Best of luck

24-11-2014, 07:03	#10
VIKTUR Junior Member Join Date: Oct 2014 Location: Nigeria Vehicle: PATHFINDER 4.0 LE 2006 Posts: 13	Thanks Ray and jim,i am just sitting on a time bomb here in Nigeria so difficult to get a proper Nissan dealer. thank for all the updates,one thing i noticed though,the ECU in the car had 7Z while the new one has BH don know that meant anything anyways. On the reason why it was changed,long story,some guy messed with the Tube water heat that started pouring hot steam water on the the fuse box and what i was told next was that it short circuited to the ECU and all and all bla bla bla. so thats were i found my self now,my ride is 3 years ld and never came up with issues just this silly mistake now.

24-11-2014, 21:18	#11
Sweety Senior Member Join Date: May 2013 Location: Northumberland Vehicle: Terrano 2.7TDI SE LWB Posts: 3,604	Yours the 4L V6 petrol ? if it is has the spark plugs & plug leads been changed ? the problem could also be the coil pack

25-11-2014, 08:08	#14
VIKTUR Junior Member Join Date: Oct 2014 Location: Nigeria Vehicle: PATHFINDER 4.0 LE 2006 Posts: 13	Hey Sweety,very on point,my truck is US spec engine which are petrol V6' and also the spark plugs just got changed. Could that be the cause?