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I have a 2005 Frontier 4.0l trouble code po300. I replace all coils and spark plugs but still running roughI have a 2005 Frontier 4.0l trouble code po300. I replace all coils and spark plugs but still running rough
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Question edited for clarity and add maker.
Question moved from Computers to model category.
There are some images and a video, but normally you use a socket set with lots of universal joints. Or lift the engine, remove the mounts, then drop the engine and lift the body.
When the air big light comes on, there's a trouble code set in the computer. Don't ask us to guess which code is stored. Get the codes read and then you'll KNOW what's causing the problem. Guessing is a complete waste of time.
Ive got the same issue with my 2007 Murano. I changed the plugs,ignition coils etc. But try replacing ur MAF (Mass Air Flow Sensor). Hope that helps fix ur problem.
Depending on the sub-model, 2005 - 2012 versions *can* fit. Look for yours in the list below:
Fit note: Crew Cab Pickup, Extended Cab Pickup
This product fits the following Nissan Frontier submodels
2013-2013: Desert Runner; 6 Cyl 4.0L;
2011-2013: S; 4 Cyl 2.5L;
2011-2013: SL; 6 Cyl 4.0L;
2011-2013: SV; 4 Cyl 2.5L;
2011-2013: SV; 6 Cyl 4.0L;
2009-2013: PRO-4X; 6 Cyl 4.0L;
2011-2012: S; 6 Cyl 4.0L;
2008-2010: SE; 4 Cyl 2.5L;
2005-2010: LE; 6 Cyl 4.0L;
2005-2010: SE; 6 Cyl 4.0L;
2005-2010: XE; 4 Cyl 2.5L;
2005-2008: Nismo Off-Road; 6 Cyl 4.0L;
When calling to inquire or order - tell them the year, make, model (S, SL, SV, LE, SE, XE, etc.) Cab type (crew, extended, etc.) before paying. Have a look at the link below.
THROTTLE POSITION SENSOR, MISFIRE, #4 MISFIRE, KNOCK SENSOR, THESE ARE YOUR TROUBLE CODES, PO120,PO300, PO304, PO325, RESPECTIVELY, REPLACE THE TPS @ THROTTLE BODY, REPLACE KNOCK SENSOR , @ ENGINE BLOCK, REPLACE YOUR SPARK PLUGS & PLUG WIRES ! AND YOU MUST ALSO REPLACE BOTH YOUR AIR & FUEL FILTERS, DISTRIBUTOR CAP & ROTOR , INSPECT, MAY NEED TO REPLACE, I WOULD ANYWAY !!!!!!!! ADD SOME GOOD FUEL INJECTOR CLEANER TO TANK, NEXT FUEL UP !
If you have replaced the crank sensor and the code comes back, it may be a problem with the wiring harness or connector, or the plate the sensor reads.
check all the tire pressures first.... then drive it for the next 10-15 miles to reset it.... it worked in my frontier ... I had the same problem as well
I have a 2005 Frontier 4.0l trouble code po300. I replace all coils and spark plugs but still running rough
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