Sr20det wont start, wwwtttffff - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

nevertheless · 09-28-2010, 07:14 PM

alright i have a few questions, First off It was running a few days ago, went to the gas station and died. Pulled her home to do a few tests to check to see if my fuel pump is even working, and thats not getting power whatsoever. I hardwired the fuel pump relay to where I can get direct power from the key to the fuel pump. I tried to crank it but still no start, so I checked to see if I got spark and nothing shows. I check the clips going to the coils and the middle wire has power when I turn the key on. and on other hands I checked the fuel injectors clips when cranking the motor and nothing. Is there anything I can check to see if the ECU is bad and the Ignitor chip. also what is this dial thingy on the ECU?

I need your helpz! PS wtf

midnight_rex · 09-28-2010, 07:22 PM

that dial that you are looking at is the knob to put the ecu in "diagnose mode". when u turn it to the right (i think) it will throw codes if any. when you turn the key does the light on the ECU turn on at all?

here is a source to check the ecu:
ECU Fault Codes

also check all fuses and relays.

nevertheless · 09-28-2010, 07:27 PM

As you can see here, the light turns on when the key is on the on position

This tool here is to check to see if the fuel injectors are getting power. When I crank the motor the light does not blink, therefore my injectors are not getting any power when cranking the motor.

nevertheless · 09-28-2010, 07:30 PM

Quote:

Originally Posted by midnight_rex

that dial that you are looking at is the knob to put the ecu in "diagnose mode". when u turn it to the right (i think) it will throw codes if any. when you turn the key does the light on the ECU turn on at all?

here is a source to check the ecu:
ECU Fault Codes

also check all fuses and relays.

The light does not come on at all. We also checked all the fuses and relays multiple times.

sidedrifts13 · 09-28-2010, 07:35 PM

check all your grounds on the ecu and check your wiring and the ecu pin outs

nevertheless · 09-28-2010, 07:42 PM

Quote:

Originally Posted by sidedrifts13

check all your grounds on the ecu and check your wiring and the ecu pin outs

well i already have done so. an also added acouple new grounds. do you know witch pin's i should check?

midnight_rex · 09-28-2010, 09:18 PM

is this in a s14 or s13? i know in the s14 there are 2 relays near the dash and ECU plugs. one is for the fuel pump and the other is for the ECU. check those relays. switch them out for good ones. seems like you have a ground issue or a relay just went bad.

nevertheless · 09-28-2010, 09:26 PM

This is for an s13, Ill try that out.

midnight_rex · 09-28-2010, 09:42 PM

my mistake, the fuel pump relay is located on the driver side footwell for the s14's. i dont know about the s13's tho. the other relays on the passenger side should be for the ECU.

nevertheless · 09-30-2010, 05:52 PM

How do I check to see if power is coming out of my ECU? Problem is Im not getting fuel or spark. my fuel pump, maf, coilpacks, injectors arnt getting power.

I have tried to do it myself, on one pin the fuel pump kicks on, on another the relay kicks on, I used a light tester.

nevertheless · 09-30-2010, 07:12 PM

Messed with the pins in the ecu, and everything started getting power, got it to start, we had to redo the timing, tried cranking it again, and nothing has power again!

jvega · 02-21-2011, 12:58 PM

i think i have this same problem with my s13 sr20det. Have you fixed it yet?

nevertheless · 02-22-2011, 07:06 PM

It was a bad ECU.

jvega · 02-22-2011, 07:27 PM

same here.. Just last night we tried my ecu on my friend's s13 and it didnt wanna start. It didnt turn the fuel pump on or anything!
We plugged his ecu back in, and it started right up.

nevertheless · 02-22-2011, 07:35 PM

Funny thing is we took apart the bad ecu and found a bridge in the corner that popped, my friend saudered it for shits and giggles and we plugged it in and it started but the cluster lights stayed on after we took the key out haha

09-28-2010, 07:14 PM	#1
nevertheless Zilvia Junkie Join Date: Jan 2009 Location: omaha, ne Age: 30 Posts: 502 Trader Rating: (5) Feedback Score: 5 reviews	Sr20det wont start, wwwtttffff alright i have a few questions, First off It was running a few days ago, went to the gas station and died. Pulled her home to do a few tests to check to see if my fuel pump is even working, and thats not getting power whatsoever. I hardwired the fuel pump relay to where I can get direct power from the key to the fuel pump. I tried to crank it but still no start, so I checked to see if I got spark and nothing shows. I check the clips going to the coils and the middle wire has power when I turn the key on. and on other hands I checked the fuel injectors clips when cranking the motor and nothing. Is there anything I can check to see if the ECU is bad and the Ignitor chip. also what is this dial thingy on the ECU? I need your helpz! PS wtf

02-22-2011, 07:06 PM	#13
nevertheless Zilvia Junkie Join Date: Jan 2009 Location: omaha, ne Age: 30 Posts: 502 Trader Rating: (5) Feedback Score: 5 reviews	It was a bad ECU. __________________ Jessefuckinwood Street Prowl

02-22-2011, 07:35 PM	#15
nevertheless Zilvia Junkie Join Date: Jan 2009 Location: omaha, ne Age: 30 Posts: 502 Trader Rating: (5) Feedback Score: 5 reviews	Funny thing is we took apart the bad ecu and found a bridge in the corner that popped, my friend saudered it for shits and giggles and we plugged it in and it started but the cluster lights stayed on after we took the key out haha __________________ Jessefuckinwood Street Prowl

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09-28-2010, 07:22 PM	#2
midnight_rex Zilvia Member Join Date: Jul 2008 Location: houston, tx Age: 34 Posts: 239 Trader Rating: (1) Feedback Score: 1 reviews	that dial that you are looking at is the knob to put the ecu in "diagnose mode". when u turn it to the right (i think) it will throw codes if any. when you turn the key does the light on the ECU turn on at all? here is a source to check the ecu: ECU Fault Codes also check all fuses and relays.

09-28-2010, 07:27 PM	#3
nevertheless Zilvia Junkie Join Date: Jan 2009 Location: omaha, ne Age: 30 Posts: 502 Trader Rating: (5) Feedback Score: 5 reviews	As you can see here, the light turns on when the key is on the on position This tool here is to check to see if the fuel injectors are getting power. When I crank the motor the light does not blink, therefore my injectors are not getting any power when cranking the motor.

09-28-2010, 07:35 PM	#5
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	check all your grounds on the ecu and check your wiring and the ecu pin outs

09-28-2010, 09:18 PM	#7
midnight_rex Zilvia Member Join Date: Jul 2008 Location: houston, tx Age: 34 Posts: 239 Trader Rating: (1) Feedback Score: 1 reviews	is this in a s14 or s13? i know in the s14 there are 2 relays near the dash and ECU plugs. one is for the fuel pump and the other is for the ECU. check those relays. switch them out for good ones. seems like you have a ground issue or a relay just went bad.

09-28-2010, 09:26 PM	#8
nevertheless Zilvia Junkie Join Date: Jan 2009 Location: omaha, ne Age: 30 Posts: 502 Trader Rating: (5) Feedback Score: 5 reviews	This is for an s13, Ill try that out.

09-28-2010, 09:42 PM	#9
midnight_rex Zilvia Member Join Date: Jul 2008 Location: houston, tx Age: 34 Posts: 239 Trader Rating: (1) Feedback Score: 1 reviews	my mistake, the fuel pump relay is located on the driver side footwell for the s14's. i dont know about the s13's tho. the other relays on the passenger side should be for the ECU.

09-30-2010, 05:52 PM	#10
nevertheless Zilvia Junkie Join Date: Jan 2009 Location: omaha, ne Age: 30 Posts: 502 Trader Rating: (5) Feedback Score: 5 reviews	How do I check to see if power is coming out of my ECU? Problem is Im not getting fuel or spark. my fuel pump, maf, coilpacks, injectors arnt getting power. I have tried to do it myself, on one pin the fuel pump kicks on, on another the relay kicks on, I used a light tester.

09-30-2010, 07:12 PM	#11
nevertheless Zilvia Junkie Join Date: Jan 2009 Location: omaha, ne Age: 30 Posts: 502 Trader Rating: (5) Feedback Score: 5 reviews	Messed with the pins in the ecu, and everything started getting power, got it to start, we had to redo the timing, tried cranking it again, and nothing has power again!

02-21-2011, 12:58 PM	#12
jvega Leaky Injector Join Date: Nov 2010 Location: arizona Age: 32 Posts: 133 Trader Rating: (1) Feedback Score: 1 reviews	i think i have this same problem with my s13 sr20det. Have you fixed it yet?

02-22-2011, 07:27 PM	#14
jvega Leaky Injector Join Date: Nov 2010 Location: arizona Age: 32 Posts: 133 Trader Rating: (1) Feedback Score: 1 reviews	same here.. Just last night we tried my ecu on my friend's s13 and it didnt wanna start. It didnt turn the fuel pump on or anything! We plugged his ecu back in, and it started right up.