SR20 swap

ochocinco666 · 08-27-2008, 08:42 PM

Alright so i'm doing a sr20 swap to my 240sx. Just connected everything and went to start it up it doesnt start. There is no spark. It turns over and you can smell fuel. Ive checked my coil packs and my ignitor on another sr20 and it started right up. Could it be a grounding issue somewhere?

*aNskY* · 08-27-2008, 09:01 PM

check the ecu on your buddies swap too... could be fried or you could have the wrong ecu for your harness.

ochocinco666 · 08-27-2008, 09:10 PM

its a tuned ecu for a completely different turbo/injector setup. will that matter?

*aNskY* · 08-27-2008, 10:07 PM

where did you get the ecu? i am guessing its not the one you got with the swap? its possible its for a different year SR, in which case you would have spark on coil #1 but not the other three.

ochocinco666 · 08-28-2008, 05:12 PM

ya its the ecu that i got with the swap, but there isnt spark for all 4 of the plugs. I have no idea what it would be. Everything else works...

*aNskY* · 08-28-2008, 06:13 PM

if theres still the oem tag on the main harness, it will tell you which ecu code belongs

*duffman1278* · 08-29-2008, 09:59 AM

Recheck your wiring to the ignitor. I also got a tuned ECU when I bought my motor, I just ended up buying another ECU because I found out I shorted out my ECU by not having the proper wiring. Had some wires touching.

ochocinco666 · 08-29-2008, 06:39 PM

well the ecu that in the car right now is not a tuned ecu. I have a buddy with a sr20 tuned ecu that we are going to try and see if it works.

killswitch · 08-29-2008, 07:36 PM

I would check the ignitor, I had the same problem and it turned out to be the ignitor.

*aNskY* · 08-29-2008, 11:33 PM

Quote:

Originally Posted by killswitch

I would check the ignitor, I had the same problem and it turned out to be the ignitor.

Quote:

Originally Posted by ochocinco666

Alright so i'm doing a sr20 swap to my 240sx. Just connected everything and went to start it up it doesnt start. There is no spark. It turns over and you can smell fuel. Ive checked my coil packs and my ignitor on another sr20 and it started right up. Could it be a grounding issue somewhere?

obviously not ignitor or coil packs, therefore its gotta be harness problem or ecu

*flip3d* · 08-30-2008, 01:10 AM

S13 or S14 SR? Which ECU are you using? Check the CAS.

ochocinco666 · 08-30-2008, 12:48 PM

alright so last night i went out and bought another ecu and i threw it in my car and went to start it up, still didnt start. still no spark. So then i was thinking maybe it was the ecu agian. I went over to my buddys house and tried it on his sr20 and it started right up. So that means the ecu that i got with the sr when i purchased it was garbage but there is also another problem betweem the ecu and the ignitor. Because the ecu is good and the ignitior and the coil pack is good.

ochocinco666 · 08-30-2008, 12:49 PM

its a s13 black top. Stock e5 ecu. How and what do i check on the cas???

ochocinco666 · 09-03-2008, 08:28 PM

alright so i got it going but one more question when im downshifting and i go from like 2nd to first it wants to die... what would it be? a leak somewhere? or do i have to play around with the cas?

08-27-2008, 08:42 PM	#1 (permalink)
ochocinco666 Join Date: Jul 2008 Location: Canada Posts: 12 Trader Rating: (0)	SR20 swap Alright so i'm doing a sr20 swap to my 240sx. Just connected everything and went to start it up it doesnt start. There is no spark. It turns over and you can smell fuel. Ive checked my coil packs and my ignitor on another sr20 and it started right up. Could it be a grounding issue somewhere?

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08-27-2008, 09:01 PM	#2 (permalink)
aNskY FTP Join Date: Apr 2005 Location: NY Age: 24 Posts: 1,158 Trader Rating: (3)	check the ecu on your buddies swap too... could be fried or you could have the wrong ecu for your harness.

08-27-2008, 09:10 PM	#3 (permalink)
ochocinco666 Join Date: Jul 2008 Location: Canada Posts: 12 Trader Rating: (0)	its a tuned ecu for a completely different turbo/injector setup. will that matter?

08-27-2008, 10:07 PM	#4 (permalink)
aNskY FTP Join Date: Apr 2005 Location: NY Age: 24 Posts: 1,158 Trader Rating: (3)	where did you get the ecu? i am guessing its not the one you got with the swap? its possible its for a different year SR, in which case you would have spark on coil #1 but not the other three.

08-28-2008, 05:12 PM	#5 (permalink)
ochocinco666 Join Date: Jul 2008 Location: Canada Posts: 12 Trader Rating: (0)	ya its the ecu that i got with the swap, but there isnt spark for all 4 of the plugs. I have no idea what it would be. Everything else works...

08-28-2008, 06:13 PM	#6 (permalink)
aNskY FTP Join Date: Apr 2005 Location: NY Age: 24 Posts: 1,158 Trader Rating: (3)	if theres still the oem tag on the main harness, it will tell you which ecu code belongs

08-29-2008, 09:59 AM	#7 (permalink)
duffman1278 Premium Member Join Date: Apr 2007 Location: Socal Age: 20 Posts: 657 Trader Rating: (2)	Recheck your wiring to the ignitor. I also got a tuned ECU when I bought my motor, I just ended up buying another ECU because I found out I shorted out my ECU by not having the proper wiring. Had some wires touching.

08-29-2008, 06:39 PM	#8 (permalink)
ochocinco666 Join Date: Jul 2008 Location: Canada Posts: 12 Trader Rating: (0)	well the ecu that in the car right now is not a tuned ecu. I have a buddy with a sr20 tuned ecu that we are going to try and see if it works.

08-29-2008, 07:36 PM	#9 (permalink)
killswitch Leaky Injector Join Date: Jul 2007 Location: so cal Posts: 137 Trader Rating: (1)	I would check the ignitor, I had the same problem and it turned out to be the ignitor.

08-30-2008, 01:10 AM	#11 (permalink)
flip3d Premium Member Join Date: Feb 2008 Location: Columbia, MO Age: 20 Posts: 851 Trader Rating: (0)	S13 or S14 SR? Which ECU are you using? Check the CAS.

08-30-2008, 12:48 PM	#12 (permalink)
ochocinco666 Join Date: Jul 2008 Location: Canada Posts: 12 Trader Rating: (0)	alright so last night i went out and bought another ecu and i threw it in my car and went to start it up, still didnt start. still no spark. So then i was thinking maybe it was the ecu agian. I went over to my buddys house and tried it on his sr20 and it started right up. So that means the ecu that i got with the sr when i purchased it was garbage but there is also another problem betweem the ecu and the ignitor. Because the ecu is good and the ignitior and the coil pack is good.

08-30-2008, 12:49 PM	#13 (permalink)
ochocinco666 Join Date: Jul 2008 Location: Canada Posts: 12 Trader Rating: (0)	its a s13 black top. Stock e5 ecu. How and what do i check on the cas???

09-03-2008, 08:28 PM	#14 (permalink)
ochocinco666 Join Date: Jul 2008 Location: Canada Posts: 12 Trader Rating: (0)	alright so i got it going but one more question when im downshifting and i go from like 2nd to first it wants to die... what would it be? a leak somewhere? or do i have to play around with the cas?