HELP PLEASE! Ka24de flooding cylinders - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

nismojap · 03-09-2016, 02:50 PM

So yesterday I drove my car out 45min drove perfectly fine, I went to an interview real quick and when I started the car is started idling rough.

I immediately knew it was the O ring on injector #3 because I already had a feeling it was going to go bad considering I pulled all of them out.

Ok so I drove the car home, and it starts acting normal again, I parked the car and figured I'd pull the injector and pull the o ring to replace, of course, the O-ring was in 2 pieces. I replaced it with another injector I had laying around and tried to start the car and it started really rough and then eventually died(flooded in guessing)

The car made a loud CLUNK/BANG/KNOCK whatever you want to call it then I started taking things off and reassuring myself I did everything right. I came to realize that cylinders were flooded with gasoline as I pulled the spark plug cables.

I removed the fuel pump fuse and took the spark plugs out so with compression it could shoot the gas out, sure enough all the gas shot out (lots and lots of gas constantly had to keep cranking".

After that I put spark plugs back in and cylinders #1 & #2 were fine but #3 & #4 kept flooding. Injectors are not stuck open, I have gas, spark and air all working .

I did an oil change and there was a lot of gas mixed with the oil,

Put fresh oil in and now it's flooding again.

I checked ECU everything looked perfect, check injectors , Checked plugs , checked rail , the car turns on but very rough it will not stay on unless I'm feathering the gas.

I need any tips or help I can get at this point. Only thing I can think of is that spark plugs fouled out from the gas.

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SoundEfx · 03-09-2016, 03:46 PM

It might sound like a dumb question, but are all of the plugs the same?

Try swapping them around with the known good ones and see if the issue follows the injectors or stays with the wires. That should narrow down the issue to the injectors or something else.

nismojap · 03-09-2016, 03:51 PM

Yes all plugs are the same

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KAT-PWR · 03-09-2016, 04:01 PM

How are you sure the injectors aren't stuck?

nismojap · 03-09-2016, 04:11 PM

Yes I checked the injectors, really stumped

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SoundEfx · 03-09-2016, 04:28 PM

Do what I suggested. That way you'll know if the issue is with the injectors or not.

nismojap · 03-09-2016, 04:29 PM

I'll try it . I'll keep this updated

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andisan · 03-10-2016, 03:03 PM

I would change the spark plugs to be sure

nismojap · 03-10-2016, 03:05 PM

I have ran out of $ to continue any further . Got bills to pay

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snipesx2 · 03-10-2016, 04:36 PM

Have enough compression?

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nismojap · 03-10-2016, 04:48 PM

Yea compression is perfect .

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drewusmaximus · 03-13-2016, 09:32 AM

Have you tried putting injectors 1 & 2 into 3 & 4 and 3 & 4 into 1 & 2 to see if Cyl 1 & 2 get flooded like SoundEfx suggested?

Booterzzz · 03-28-2016, 07:38 AM

Your fuel pressure regulator may have failed..

03-09-2016, 04:28 PM	#6
SoundEfx Zilvia FREAK! Join Date: Aug 2015 Location: WA Posts: 1,230 Trader Rating: (1) Feedback Score: 1 reviews	Do what I suggested. That way you'll know if the issue is with the injectors or not. __________________

03-10-2016, 03:03 PM	#8
andisan Nissanaholic! Join Date: Oct 2007 Location: Lompoc CA 805!!!! Age: 37 Posts: 2,049 Trader Rating: (12) Feedback Score: 12 reviews	I would change the spark plugs to be sure __________________

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03-09-2016, 02:50 PM	#1
nismojap Join Date: Mar 2016 Location: Tampa Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	HELP PLEASE! Ka24de flooding cylinders So yesterday I drove my car out 45min drove perfectly fine, I went to an interview real quick and when I started the car is started idling rough. I immediately knew it was the O ring on injector #3 because I already had a feeling it was going to go bad considering I pulled all of them out. Ok so I drove the car home, and it starts acting normal again, I parked the car and figured I'd pull the injector and pull the o ring to replace, of course, the O-ring was in 2 pieces. I replaced it with another injector I had laying around and tried to start the car and it started really rough and then eventually died(flooded in guessing) The car made a loud CLUNK/BANG/KNOCK whatever you want to call it then I started taking things off and reassuring myself I did everything right. I came to realize that cylinders were flooded with gasoline as I pulled the spark plug cables. I removed the fuel pump fuse and took the spark plugs out so with compression it could shoot the gas out, sure enough all the gas shot out (lots and lots of gas constantly had to keep cranking". After that I put spark plugs back in and cylinders #1 & #2 were fine but #3 & #4 kept flooding. Injectors are not stuck open, I have gas, spark and air all working . I did an oil change and there was a lot of gas mixed with the oil, Put fresh oil in and now it's flooding again. I checked ECU everything looked perfect, check injectors , Checked plugs , checked rail , the car turns on but very rough it will not stay on unless I'm feathering the gas. I need any tips or help I can get at this point. Only thing I can think of is that spark plugs fouled out from the gas. Sent from my iPhone using Tapatalk

03-09-2016, 03:46 PM	#2
SoundEfx Zilvia FREAK! Join Date: Aug 2015 Location: WA Posts: 1,230 Trader Rating: (1) Feedback Score: 1 reviews	It might sound like a dumb question, but are all of the plugs the same? Try swapping them around with the known good ones and see if the issue follows the injectors or stays with the wires. That should narrow down the issue to the injectors or something else. __________________

03-09-2016, 03:51 PM	#3
nismojap Join Date: Mar 2016 Location: Tampa Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	Yes all plugs are the same Sent from my iPhone using Tapatalk

03-09-2016, 04:01 PM	#4
KAT-PWR Nissanaholic! Join Date: Dec 2011 Location: US Posts: 2,040 Trader Rating: (11) Rides Gallery: KAT-PWR Feedback Score: 11 reviews	How are you sure the injectors aren't stuck? __________________ MRP Manufacturing

03-09-2016, 04:11 PM	#5
nismojap Join Date: Mar 2016 Location: Tampa Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	Yes I checked the injectors, really stumped Sent from my iPhone using Tapatalk

03-09-2016, 04:29 PM	#7
nismojap Join Date: Mar 2016 Location: Tampa Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	I'll try it . I'll keep this updated Sent from my iPhone using Tapatalk

03-10-2016, 03:05 PM	#9
nismojap Join Date: Mar 2016 Location: Tampa Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	I have ran out of $ to continue any further . Got bills to pay Sent from my iPhone using Tapatalk

03-10-2016, 04:36 PM	#10
snipesx2 Join Date: Oct 2011 Location: Round Rock, TX Age: 29 Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	Have enough compression? Sent from my SM-G920P using Tapatalk

03-10-2016, 04:48 PM	#11
nismojap Join Date: Mar 2016 Location: Tampa Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	Yea compression is perfect . Sent from my iPhone using Tapatalk

03-13-2016, 09:32 AM	#12
drewusmaximus Join Date: Feb 2016 Location: New York Posts: 37 Trader Rating: (0) Feedback Score: 0 reviews	Have you tried putting injectors 1 & 2 into 3 & 4 and 3 & 4 into 1 & 2 to see if Cyl 1 & 2 get flooded like SoundEfx suggested?

03-28-2016, 07:38 AM	#13
Booterzzz Join Date: Feb 2010 Location: Columbus, Ohio Age: 33 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	Your fuel pressure regulator may have failed..