I need to increase the power and speed of my Pathfinder 2009. it is LE , 4L and 291 CC. Please advise me,

are you using 4wd /yes /no
are you on ice, or off road?
or just pavement ice free,
we cant guess that. and is KEY
car comes new with 3 different 4wd systems
first 2 are part time
and last full time 4wd and 4lo (PT)
all three stay out of
part time on icefree pavement
4lo is part time too, and same rules its for offroad only.
sure
the cluster has 3 lamps
fulltime
part time
and
4 LO
tell me, does or has fulltime ever come on in 4wd
if yes,its AWD jeep.
if not the car is part time, in 4wd
and is only for iced roads or offroad.

5min work look at rear of transfer case
bingo, now you know what you got

How To put a Nissan Into 4 Wheel Drive - YouTube

? 2:09
https://www.youtube.com/watch?v=IirIxH0WIVI
Mar 13, 2011 - Uploaded by suzuki230
Just a quick How To, on putting your Nissan into 4 wheel drive. ... to warn the newbies not to drive on hard surface while in 4WDthis can ... If you're having difficulty engaging the 4wd low gear, you can steer ... Hey man i have a 1991 nissan pathfinder SE im going to install a ... How fast can you go on 4L?.

Nissan Pathfinder Questions - automatic will not go into any ...

www.cargurus.com > Questions > Nissan > Pathfinder

CarGurusautomatic will not go into any gear - was driving and parked. now it wonit go into gear. ... Asked by avips Apr 14, 2010 at 04:02 PM about the 1993 Nissan Pathfinder. Question type: Maintenance & Repair ... 2002 Nissan Pathfinder LE 4WD.

Automatic Transmission May Not Shift Correctly at High ...

repairpal.com > Problems > Toyota > 4Runner

truck periodically will not shift into drive at initial start-up. Will very often shift ... 1990Toyota 4Runner- Automatic Transmission100,000Visitor. I have very similar ...

10 Most Common Transmission Problems

make sure your throttle position sensor is adjusted to correct values

Powering the 2005 Pathfinder is a standard 4.0-liter DOHC V6, rated at a class-leading 270 horsepower and 291 lb-ft torque. The top speed is 118 miles per hour (electronically limited).----------------------------------------------------------------------------------
galletto 1260

Someone will have to check the wiring to find the short to ground.
You may need a shop manual to get the necessary diagrams.

DTC Confirmation Test Malfunction is detected when ECM does not receive signal from ignition primary circuit during engine cranking or running. Possible causes are:

• Ignition primary circuit open or shorted.
• Defective power transistor (integral with ignition coil).
• Defective condenser.
• Defective Crankshaft Position (CKP) sensor (REF).
• CKP sensor (REF) circuit open or shorted.

STOPPED UP FUEL FILTER OR WEAK FUEL PUMP.FUEL CONTAMINATED WITH WATER.LOW IDLE FAULTY IDLE SPEED CONTROL HAVE VECHICLE SCAN TO CHECK FOR CODES.

the tranny is bad call these guys befor buy and see if you want to go any futher and check price on tranny 865-291-0698

I would look at the blower motor itself. The heater circuit works, since you can adjust the speed of the fan. The blower motor is behind the glove box, right above your right foot, when you are sitting in the passenger seat. Turn your heater on speed 3 and tap the bottom of the blower motor (round piece about 4 inches in diamater at the bottom of the blower assembly is the motor itself) with a hammer. It may come on, but it may not. If it doesnt come on, then you will need to unplug it (2 wire plug) and check for power at the connector it self. Good luck and let me know what you find.

Could be one of 2 things. It could be blower motor resistor or blower motor amplifier. If you have AUTO AC feature/setup, than it will be the amlifier. If you have manual AC than I would look at the resistor, but sounds like you have AUTOAC system, so get the amlifier checked. Its behind the glove box screwed to the air box assembly. 2 screws and its out. Hope this helps. Good luck and let me know what you found.