Frying injectors! need help! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

MSTRMND · 06-26-2011, 09:13 PM

So to start off I have a built s13 red top sr20 in my s14 running off apexi power fc with the hand controller, when i got this car it was running rough only to find out cylinder 2 deatschwerks 550cc injector had gone bad, so until I receive a replacement I toss in 370cc q45 injectors and it runs GREAT! for about a day.... then fries cylinder 3 injector, I replace it thinking the used injector had gone bad. Driving the car a few hours later I park it and it takes a while to finally start, it smokes, runs rich, and is sluggish the whole way home. Same symptoms as before. So I pull the injector#3 plug only to find it doesnt change. Im really confused as to why my car is doing this, any help would be greatly appreciated.

Sileighty_85 · 06-26-2011, 09:15 PM

Check the wiring harness

MSTRMND · 06-26-2011, 09:19 PM

Has this been a problem before that you know of?

Sileighty_85 · 06-26-2011, 09:20 PM

only when harnesses are wired up incorrectly

MSTRMND · 06-26-2011, 09:27 PM

when wiring for an sr20 no wires that involve the fuel injection are modified are they? With the exception of the fuel pump relay

MSTRMND · 06-26-2011, 09:28 PM

Are there any other possible causes before i start hacking into my loom?

Sileighty_85 · 06-26-2011, 09:41 PM

harness could be shorted/rubbed through and grounded out somewhere.

Inspection of the harness would be a good start

MSTRMND · 06-26-2011, 09:44 PM

all right i appreciate it, ill tear it down tomorrow and check it out.

MSTRMND · 06-27-2011, 09:02 PM

wiring was no issue...

Sileighty_85 · 06-27-2011, 09:30 PM

if wiring is not an issue and ECU is fine then gonna have to chalk it up to shitty injectors

06-26-2011, 09:13 PM	#1
MSTRMND Zilvia Member Join Date: Jun 2011 Location: Fredericksburg,VA Age: 30 Posts: 178 Trader Rating: (3) Feedback Score: 3 reviews	Frying injectors! need help! So to start off I have a built s13 red top sr20 in my s14 running off apexi power fc with the hand controller, when i got this car it was running rough only to find out cylinder 2 deatschwerks 550cc injector had gone bad, so until I receive a replacement I toss in 370cc q45 injectors and it runs GREAT! for about a day.... then fries cylinder 3 injector, I replace it thinking the used injector had gone bad. Driving the car a few hours later I park it and it takes a while to finally start, it smokes, runs rich, and is sluggish the whole way home. Same symptoms as before. So I pull the injector#3 plug only to find it doesnt change. Im really confused as to why my car is doing this, any help would be greatly appreciated.

06-26-2011, 09:15 PM	#2
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Check the wiring harness __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

06-26-2011, 09:20 PM	#4
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	only when harnesses are wired up incorrectly __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

06-26-2011, 09:41 PM	#7
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	harness could be shorted/rubbed through and grounded out somewhere. Inspection of the harness would be a good start __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

06-27-2011, 09:30 PM	#10
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	if wiring is not an issue and ECU is fine then gonna have to chalk it up to shitty injectors __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

06-26-2011, 09:19 PM	#3
MSTRMND Zilvia Member Join Date: Jun 2011 Location: Fredericksburg,VA Age: 30 Posts: 178 Trader Rating: (3) Feedback Score: 3 reviews	Has this been a problem before that you know of?

06-26-2011, 09:27 PM	#5
MSTRMND Zilvia Member Join Date: Jun 2011 Location: Fredericksburg,VA Age: 30 Posts: 178 Trader Rating: (3) Feedback Score: 3 reviews	when wiring for an sr20 no wires that involve the fuel injection are modified are they? With the exception of the fuel pump relay

06-26-2011, 09:28 PM	#6
MSTRMND Zilvia Member Join Date: Jun 2011 Location: Fredericksburg,VA Age: 30 Posts: 178 Trader Rating: (3) Feedback Score: 3 reviews	Are there any other possible causes before i start hacking into my loom?

06-26-2011, 09:44 PM	#8
MSTRMND Zilvia Member Join Date: Jun 2011 Location: Fredericksburg,VA Age: 30 Posts: 178 Trader Rating: (3) Feedback Score: 3 reviews	all right i appreciate it, ill tear it down tomorrow and check it out.

06-27-2011, 09:02 PM	#9
MSTRMND Zilvia Member Join Date: Jun 2011 Location: Fredericksburg,VA Age: 30 Posts: 178 Trader Rating: (3) Feedback Score: 3 reviews	wiring was no issue...

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