KA24DE -Receiving Fuel Problem- - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

BlackRedX · 07-24-2008, 07:39 PM

Hey all. Just got a wiring harness, wired everything up, tested it all, there's power going all over the place. Turns signals, Hazards, head lights, brakes, A/C-Heat, wipers, door chime Radio, gauge cluster seat belts. Its all works. Except for the fuel pump. All the fuses checked out fine and the relays are turning on.

We checked the wires to see if they have power and they do. But we don't hear it kicking on and the engine likes the yank dat cameltoe.

this is what we've come down to.

1. Bad Fuel Pump
2. Ecu not hooked up right (only hand tightened the bolt cause didn't have the right socket)
3. The wiring went bad to the pump.

checked all my connections that I had spliced and they are all good. Nice and tight, no revealing wires and nothing is touching.

What I'm really looking for is a Diagram of the Fuel Pump for the KA24DE. I have a FSM but I can't find an actual diagram anywhere. Any help is greatly appreciated. Thanks so much all!

***FaLKoN240*** · 07-24-2008, 11:42 PM

I had this problem a while ago.

Turned out the ECU I had was bad.

Try checking your ECU.

Okinawandrifter87 · 07-24-2008, 11:45 PM

Yeah I would def check the ecu. I mean you even mentioned how it wasnt hooked up right at one time.

BlackRedX · 07-25-2008, 10:18 AM

Alright, well I was planning on checkin that out anyway. I'll take the ECU off and then tighten it up real good. Cause I'll have my tools with me this time.

Before I did all this wiring the fuel pump did kick on and the ECU was doin its job...

Anybody have any diagram of the actual fuel pump w/ sending unti? Thanks a bunch all.

let5l1de · 07-25-2008, 01:17 PM

i recently did a s14 ka obdII conversion into my s13 coupe (dont ask why). In doing so, i converted my s13 harness and ran it with the existing wires in the top of my fender well. Long story "short" (as in electrical)
my poor slammed coupe had the 18"s rub into the electrical and ended up stripping a few wires bare and shorted the system. all of my components tested ok with the exception of 1. The power out Fuel Pump Pin on the ECU. Until I buy another ECU or get mine fixed, I have jumped one of the relays in the engine compartment to ignition on/constant fuel pump power. I dont recommend this temp fix because the safety power on off feature from ecu has now been eliminated.

BlackRedX · 07-25-2008, 06:33 PM

well thanks for the story and a fair warning! haha!
Anyways, my 240SX started. It was because of the ECU not being tightened. Started right up with no problems. just had to hooked up the fuel line and reconnect the fuel pump and BOOM!... I mean VROOM! He started right up. Thanks guys! I really appreciate the thought of you all helpin me out here.

07-24-2008, 07:39 PM	#1
BlackRedX Join Date: Jun 2008 Location: that there Posts: 28 Trader Rating: (0) Feedback Score: 0 reviews	KA24DE -Receiving Fuel Problem- Hey all. Just got a wiring harness, wired everything up, tested it all, there's power going all over the place. Turns signals, Hazards, head lights, brakes, A/C-Heat, wipers, door chime Radio, gauge cluster seat belts. Its all works. Except for the fuel pump. All the fuses checked out fine and the relays are turning on. We checked the wires to see if they have power and they do. But we don't hear it kicking on and the engine likes the yank dat cameltoe. this is what we've come down to. 1. Bad Fuel Pump 2. Ecu not hooked up right (only hand tightened the bolt cause didn't have the right socket) 3. The wiring went bad to the pump. checked all my connections that I had spliced and they are all good. Nice and tight, no revealing wires and nothing is touching. What I'm really looking for is a Diagram of the Fuel Pump for the KA24DE. I have a FSM but I can't find an actual diagram anywhere. Any help is greatly appreciated. Thanks so much all!

07-24-2008, 11:42 PM	#2
*FaLKoN240* Super Moderator Join Date: Jun 2004 Location: SF Bay Area Posts: 16,760 Trader Rating: (73) Feedback Score: 73 reviews	I had this problem a while ago. Turned out the ECU I had was bad. Try checking your ECU. __________________ Best way to do business with me? Make your best offer FIRST.

07-24-2008, 11:45 PM	#3
Okinawandrifter87 Post Whore! Join Date: Jun 2006 Location: Sacramento, CA Posts: 3,959 Trader Rating: (22) Feedback Score: 22 reviews	Yeah I would def check the ecu. I mean you even mentioned how it wasnt hooked up right at one time. __________________ Driftphreak87

07-25-2008, 01:17 PM	#5
let5l1de Zilvia FREAK! Join Date: Dec 2007 Location: 626DRIFT, ca Posts: 1,420 Trader Rating: (30) Rides Gallery: let5l1de Feedback Score: 30 reviews	i recently did a s14 ka obdII conversion into my s13 coupe (dont ask why). In doing so, i converted my s13 harness and ran it with the existing wires in the top of my fender well. Long story "short" (as in electrical) my poor slammed coupe had the 18"s rub into the electrical and ended up stripping a few wires bare and shorted the system. all of my components tested ok with the exception of 1. The power out Fuel Pump Pin on the ECU. Until I buy another ECU or get mine fixed, I have jumped one of the relays in the engine compartment to ignition on/constant fuel pump power. I dont recommend this temp fix because the safety power on off feature from ecu has now been eliminated. __________________ GR Performance facebook Pics & More! Comments! http://www.facebook.com/pages/GR-Performance/120477531339202 Read My Sales Review 626 Friday Nights San Gabriel

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07-25-2008, 10:18 AM	#4
BlackRedX Join Date: Jun 2008 Location: that there Posts: 28 Trader Rating: (0) Feedback Score: 0 reviews	Alright, well I was planning on checkin that out anyway. I'll take the ECU off and then tighten it up real good. Cause I'll have my tools with me this time. Before I did all this wiring the fuel pump did kick on and the ECU was doin its job... Anybody have any diagram of the actual fuel pump w/ sending unti? Thanks a bunch all.

07-25-2008, 06:33 PM	#6
BlackRedX Join Date: Jun 2008 Location: that there Posts: 28 Trader Rating: (0) Feedback Score: 0 reviews	well thanks for the story and a fair warning! haha! Anyways, my 240SX started. It was because of the ECU not being tightened. Started right up with no problems. just had to hooked up the fuel line and reconnect the fuel pump and BOOM!... I mean VROOM! He started right up. Thanks guys! I really appreciate the thought of you all helpin me out here.