ok so last night around 12:30am im driving and i hit a little pot hole and then my started to sound like a subaru then i pull over to see if anything is hanging but nothing was so i contiued driving home and parked the car.

got up this morning to really take a look at it and a gasket blew towards the muffler so i replaced it. its gotton a little quiet but i came accross another problem when the car revs pass 2100 rpms the check engine light comes on and starts blinking and not to mention its still sounds like a subaru but not as bad.

does any body know what it could be cause i dont wanna take a chance driving the car and a nother problem occurs ex..........

 

I was gonna say you blew a tire and it sounded like a blow off valve.

Blinking light means misfire, I guess you associate the sound to a rev limiter? Run the codes to see what cylinder(s), and report back. If the exhaust cracked far enough forward (near the front O2 sensors), you could have a lean condition causing a random misfire.

 

Lol sum body maid me smile today lmfao - is it safe to drive to a shop cause its dont feel like it to me

 

and also how serious is this problem

 

Coil pack(s).

 

ok so i was told cylinders 3 nd 4 and a code for the the knock sensor and not the mention when I was taking off the coil packs off my spark plugs are shot but I just changed them last month?????

maybe it could be the injectors???

 

And its also sucking up a lot of gas, also its smell like gas when its idleing and its back firing like crazy

 

Were they misfire codes or bad coil codes? Do you have the numbers written down anywhere? Are the coils you replace #s 3 and 4? are they OEM or aftermarket? What do you mean they are shot?

Aftermarket coils will throw a code, even though they are working fine.

there are a few possibilities.
1- Bad coils causing a miss and unburned fuel to pass into the exhaust.
2- leaking injectors causing flooded cylinders causing unburned fuel to pass into the exhaust.

How far is the shop? probably be ok, but IDK.

 

well the guy said it was a misfire code, and what i mean buy spark plugs being shot is they have oil on them not all but cylinder(s) 3 nd 4

also i never replace the coils only spark plugs the shop is about 35 mins away and 51 mins in traffic

now also when im driving its feels like i lost 45 percent of power as far as the motors goes because i hav to rev up to about 3000 rpms in order for me to take off or the car will stall, and now the CEl was blanking at about 2100 rpms now its blanking at 4500 when im in gears 1,2,3

 

what i was going to do was just replace all of the injectors, coils, and spark plugs to see if that will end the problem do u think that is a good idea????

 

Your spark plugs are leaking oil and deteriorating your coil boots. Valve cover gasket job with tube seals and new boots on those two coils. The boots are leaking spark to the tube walls and causing the misfiring.

http://forums.maxima.org/4th-generat...cylinders.html

http://forums.maxima.org/4th-generat...ion-guide.html

 

ok i will deff do this in the morning but do u still i should get the injector or wait until i see what happens when i do this and i think the back valve cover gasket is leaking to as well how do i get to that

 

Search man. There are many posts regarding this.

 

Search man. There are many posts regarding this.

 

and i have been doing my researce but didnt find to manys thing. but i do kno the codes for the check engine light.

P0153 - circuit condition ( heated oxygen sensor bank aa2 sensor1)
Explanation - powertrain control module uses oxygen aasensor to calculate the air/fuel ratio in the exhaust
Probable cause -
oxygen sensor defective
fuel system running very rich or lean-check another code first
engine misfire condition-repair
fuel pressure very high or low-fuel pump or pressure regulator

P0141 -
HO2s212 heater condition (heted oxygen sensor- bank 1 sensor 2
The power control module monitors the oxygen aasensor heater. the computer has recognized a aafailure in this circuit.
Probable cause
faulty H02s12 (bank 1 sensor 2)
poor connection at oxygen sensor
check circuit fuse

P1320
Ignition control module (icm) 4x referance circuit aa intermitten
Engine running and the ECM did not detect any 4x pulses for 400ms
Probable causes -
failed 4x CKP sensor
poor connection
open or short circuit condition

P0400
EGR system fault (exhaust gas recirculation)
The system ECM has detected too little flow on the EGR system
Probable Causes -
block passage on EGR system
Failed EGR vavle
EGR solenoid faulty
failed EGR pressure sensor where applicable
failed EGR position sensor where applicable

P0306-
cylinder 6 misfire detected
Probable cause -
weak missing spark
plugged fuel injector
engine mechanical fault
large vacuum leak specific to cylinder

P0325 -
Knock sensor 1 circuit bank 1 or single cylinder
probable cause
open or short circuit condition
faulty knock sensor

these are all the codes my car is throwing but im not even sure where i should start not to mention ive been looking threw the forum to find spesifics cause im not really to sure what some of these codes are