ka24de fuel and CEL codes??? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

nismo_drifter · 03-24-2014, 08:41 PM

95 s14 ka24de

okay so i go and start my car and drive it 5 mins and park it, runs fine and then i start it back up again, its sputtering really bad and the car is shaking. I drive it home and i

-check the compression and its all 180psi
-check spark and they are all good
-check fuel injectors and first three are good but the last one is not.

I check this by unplugging each injector harness and when i unplug the first three its gets worse but when i unplug the last on its the same. so i swap the last injector with the third injector and go to unplug them and the third is now the same when i unplug it and the last one gets worse when i unplug it. so i figured it was a bad injector. I purchased a new injector and replace the third injector since the bad one is in there and i swapped the good one to number four already.

Now i drive the car and its blowing white smoke and smells of gas really bad and is back firing with flames coming out. i check the injectors again and the last one is bad again?

so is this a harness issue or ecu issue?

I also have 6 CEL codes:

-p0170 fuel trim bank 1

-p0325 knock sensor1 circuit bank 1

-p0110 intake air temperature sensor 1 circuit ( i have an intake and the sensor is not plugged up)

-p0335 crankshaft position sensor A circuit

-p1136 nissan
1.ckp sensor (pcs) cog
2.crankshaft/camshaft sensor range/performance

-p0705 tranmission range sensor circuit (PRNDL)

what is the cause of this and how do i go about fixing this?

how would i go about checking if the plug for the injector has the right amount of power coming through the wires to the injector?

i have this but have no idea how to use it?

OnTheChip · 03-25-2014, 08:52 AM

Sounds like an injector O-ring is leaking.

nismo_drifter · 03-25-2014, 05:50 PM

Okay so I checked the injector harness and it's reading like 5-6 volts. The rest is reading 11-12 volts.

How do I check to see if it's the ecu or wiring harness that is bad? Don't want to buy either one if its not be the issue.

03-24-2014, 08:41 PM	#1
nismo_drifter Zilvia Addict Join Date: Nov 2006 Location: socal Posts: 710 Trader Rating: (14) Feedback Score: 14 reviews	ka24de fuel and CEL codes??? 95 s14 ka24de okay so i go and start my car and drive it 5 mins and park it, runs fine and then i start it back up again, its sputtering really bad and the car is shaking. I drive it home and i -check the compression and its all 180psi -check spark and they are all good -check fuel injectors and first three are good but the last one is not. I check this by unplugging each injector harness and when i unplug the first three its gets worse but when i unplug the last on its the same. so i swap the last injector with the third injector and go to unplug them and the third is now the same when i unplug it and the last one gets worse when i unplug it. so i figured it was a bad injector. I purchased a new injector and replace the third injector since the bad one is in there and i swapped the good one to number four already. Now i drive the car and its blowing white smoke and smells of gas really bad and is back firing with flames coming out. i check the injectors again and the last one is bad again? so is this a harness issue or ecu issue? I also have 6 CEL codes: -p0170 fuel trim bank 1 -p0325 knock sensor1 circuit bank 1 -p0110 intake air temperature sensor 1 circuit ( i have an intake and the sensor is not plugged up) -p0335 crankshaft position sensor A circuit -p1136 nissan 1.ckp sensor (pcs) cog 2.crankshaft/camshaft sensor range/performance -p0705 tranmission range sensor circuit (PRNDL) what is the cause of this and how do i go about fixing this? how would i go about checking if the plug for the injector has the right amount of power coming through the wires to the injector? i have this but have no idea how to use it?

03-25-2014, 08:52 AM	#2
OnTheChip Zilvia Junkie Join Date: May 2013 Location: Burgaw, NC Posts: 318 Trader Rating: (0) Feedback Score: 0 reviews	Sounds like an injector O-ring is leaking. __________________ NismotronicSA - Speed-Density Tuning for Nissans

03-25-2014, 05:50 PM	#3
nismo_drifter Zilvia Addict Join Date: Nov 2006 Location: socal Posts: 710 Trader Rating: (14) Feedback Score: 14 reviews	Okay so I checked the injector harness and it's reading like 5-6 volts. The rest is reading 11-12 volts. How do I check to see if it's the ecu or wiring harness that is bad? Don't want to buy either one if its not be the issue. Last edited by nismo_drifter; 03-25-2014 at 08:31 PM..