Hi everyone,

im pretty sure that this topic exist somewhere here but i want to open mine to be sure someone will help me.

I have a G before but i got an accident so i got a diff G around 3mon ago and its a huge problem for me now!

My engine making those weird knocking ( i know everyone posts it) but the problem not even in that knocking! My car goes slow as i dont know what, corolla 98 i think goes faster now
it takes me around 2 min to go 40mph
when i go 80mph my engine light is on and its not going faster at all!

i checked the codes and its random misfire (p0300) so i changed my spark plugs and it was okey but the noise was still on but at least no light
so after 3 weeks my light is again on and the same p0300
so i took it to infiniti dealer they looked and they told me that its better to buy a new engine but f**k its around 3k as they told me!

so my question is maybe someone had this problem before and know whats wrong with the car and what will u recommend? change the engine or something else? if yes where u think is the best place to buy it from

If u need a video of knocking im pretty sure that u all know what im talking about i can post it but i think theres no need if u know what im talking about!

THANKS a lot i will really appreciate any help!

 

Is there enough oil?

 

It is but I'm not sure if they put synthetic but are saying yes but still I'll go on Monday to change it to see maybe it's gonna be better!
I just don't understand why p0300 shows up! And that noise

 

RB26 swap ftw!

Check your fluid levels and let us know what is going on

Nick C,

 

so i changed the oil today - all i can say its takes me now 1min to go 40mph in stead of 2 min!

on 60mph light is blinking and these noises from engine OMG!!!
and also there's no exhaust sound at all!!! i mean there's some but really bad one!!!

help asap!

 

Just order a gasket kit from nissan and a rebuild kit. Call it a day.

 

wow looked at the prices and i guess its easier and cheaper to buy new engine

but no i dont believe that anyone got this problem before

 

U need to go back where u bought it from. sounds lik ethey patched it up and sold it.

 

they just saying they dont know whats wrong bring it and they will see whats wrong
going there tomorrow but im pretty sure they all gonna say that they HAVE TO do a lot of stuff so they can get some money from me
thats why im trying to see if someone had that problem before so u can help me out

 

My co-worker has a 350Z that started making odd noises. He ended up with a spun bearing. Since you're local, check out Brandywine Auto, he was able to get his engine replaced for less than $2k I believe and even walked the junkyard to pick what car it came out of.


As far as the P0300 MULTIPLE CYLINDER MISFIRE, the FSM lists the following as possible causes:


Improper spark plug

Insufficient compression

Incorrect fuel pressure

The fuel injector circuit is open or shorted

Fuel injector

Intake air leak

The ignition signal circuit is open or shorted

Lack of fuel

Signal plate

Air fuel ratio (A/F) sensor 1

Incorrect PCV hose connection

Since you also mentioned your CEL is BLINKING while you're driving, I'd recommend not driving it much until you figure it out. Sounds like something can be damaged by driving it. Read below from the FSM also:

The misfire detection logic consists of the following two conditions.
1. One Trip Detection Logic (Three Way Catalyst Damage)
On the 1st trip that a misfire condition occurs that can damage the three way catalyst (TWC) due to overheating, the MIL will blink.
When a misfire condition occurs, the ECM monitors the CKP sensor signal every 200 engine revolutions for a change.
When the misfire condition decreases to a level that will not damage the TWC, the MIL will turn off.
If another misfire condition occurs that can damage the TWC on a 2nd trip, the MIL will blink.
When the misfire condition decreases to a level that will not damage the TWC, the MIL will remain on.
If another misfire condition occurs that can damage the TWC, the MIL will begin to blink again.
2. Two Trip Detection Logic (Exhaust quality deterioration)
For misfire conditions that will not damage the TWC (but will affect vehicle emissions), the MIL will only light when the misfire is detected on a 2nd trip. During this condition, the ECM monitors the CKP sensor signal every 1,000 engine revolutions.
A misfire malfunction can be detected on any one cylinder or on multiple cylinders.

 

Changed my 2 belts today, feels better BUT in the morning exhaust sound was terrible!

 

so yes! todays noise killed me!!! check it out

 

That's a rod knocking so sorry, but your engine's toast. I definitely wouldn't be driving that thing, it could shoot a rod through the block.

 

RB Swap time!


Nick C.

 

thats what happened yesterday! so whats your recommendation? change/rebuild engine?