Fuel injectors not firing?? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

speed3 · 03-26-2012, 05:52 PM

Does anyone know where i can find the wiring schematic for the fuel injection on a 91 240 with ka24de??

I've been working on getting my car running and fixed everything but my fuel injectors will not continue firing. They will only give off first initial spray.
Fuel pressure seems good all the way up to the injectors.
I'm thinking it has to be a wiring issue.

If anyone can let me know where the wiring diagram is I would appreciate it. I cant seem to find one.

kennedy8383 · 03-27-2012, 09:03 AM

Have you try checking the resistance on the injector.. Try checking nicoclub.com..

airman · 03-28-2012, 02:18 PM

First initial spray - i.e. the priming pulse before you even crank the car?

Make sure your dizzy/cas signal is hooked up right and all of your harness grounds are secured properly.

speed3 · 03-31-2012, 02:11 PM

ok just to update.

I had checked all my harness and fixed any exposed wires and cleaned grounds, ECU is good.

Ended up with good spark, good fuel pressure but no fuel past injectors.

My Crank Angle Sensor had gone bad. Its in the Distributor. Replaced Dizzy and car finally fired up first try.

*wangan_cruiser* · 04-01-2012, 12:27 PM

turn your ign on (dont crank) then check for voltage from each injector clip. you probably not getting power to your injectors thats why they are not firing. should get 12v. you need to trace a red wire.

speed3 · 04-01-2012, 04:07 PM

Quote:

Originally Posted by wangan_cruiser

turn your ign on (dont crank) then check for voltage from each injector clip. you probably not getting power to your injectors thats why they are not firing. should get 12v. you need to trace a red wire.

you didnt read. I had checked everything.

It was distributor. Fixed now.

03-26-2012, 05:52 PM	#1
speed3 Join Date: Mar 2012 Location: so cal Posts: 40 Trader Rating: (1) Feedback Score: 1 reviews	Fuel injectors not firing?? Does anyone know where i can find the wiring schematic for the fuel injection on a 91 240 with ka24de?? I've been working on getting my car running and fixed everything but my fuel injectors will not continue firing. They will only give off first initial spray. Fuel pressure seems good all the way up to the injectors. I'm thinking it has to be a wiring issue. If anyone can let me know where the wiring diagram is I would appreciate it. I cant seem to find one.

03-28-2012, 02:18 PM	#3
airman Leaky Injector Join Date: Jun 2011 Location: Clemson, SC Age: 34 Posts: 83 Trader Rating: (1) Feedback Score: 1 reviews	First initial spray - i.e. the priming pulse before you even crank the car? Make sure your dizzy/cas signal is hooked up right and all of your harness grounds are secured properly. __________________ 2014 Absurdity Build RIP S13 KA-T HX35 419whp

04-01-2012, 12:27 PM	#5
wangan_cruiser kouki man Join Date: Apr 2006 Location: downtown oakland,ca Age: 39 Posts: 3,535 Trader Rating: (36) Feedback Score: 36 reviews	turn your ign on (dont crank) then check for voltage from each injector clip. you probably not getting power to your injectors thats why they are not firing. should get 12v. you need to trace a red wire. Last edited by wangan_cruiser; 04-01-2012 at 12:39 PM.. Reason: missing words

03-27-2012, 09:03 AM	#2
kennedy8383 Zilvia Member Join Date: Feb 2012 Location: Kanada Age: 40 Posts: 208 Trader Rating: (1) Feedback Score: 1 reviews	Have you try checking the resistance on the injector.. Try checking nicoclub.com..

03-31-2012, 02:11 PM	#4
speed3 Join Date: Mar 2012 Location: so cal Posts: 40 Trader Rating: (1) Feedback Score: 1 reviews	ok just to update. I had checked all my harness and fixed any exposed wires and cleaned grounds, ECU is good. Ended up with good spark, good fuel pressure but no fuel past injectors. My Crank Angle Sensor had gone bad. Its in the Distributor. Replaced Dizzy and car finally fired up first try.