sr20 won't turn over after fixing ecu / fuel related? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

412xx · 11-14-2017, 12:42 PM

EDITED: NEW ISSUES!

S13 SR would start after swap, ran extremely rich and would not go above 2500rpms.
Turns out the ECU chip was fried. Had the ECU fixed, rechipped and tuned.
Plugged it back in, will not start now.
The Coil Packs are only getting 6V and not the full 12V and I'm not sure why.

Here is what has been checked/done:
- Compression: 150-155 across all 4
- Fuel Pressure: 43-45
- Fuel Pump - Great
- FPR - stock, works for now will upgrade.
- Injectors: Great, 850cc
- Spark Plugs: Replaced w/ NGK and has spark
- Maf: s13 maf, no changes from when it was running before ECU fix
- Ignitor: tested, failed. Borrowed a friends from his car, still did not run.
- Coil Packs - getting 6V instead of 12v? This could be part of the issue
- Timing - have not checked timing, but it would still run before the ECU fix. Should I check the timing? I didn't think I would have to if I only rechipped my ECU and timing was set at 15*?

Any ideas?

412xx · 11-21-2017, 08:00 AM

bump for sad 240 not running

sr vegas 240 · 12-29-2017, 06:20 PM

im no expert but I would start with the basic since you are only getting 6v at the coils check the battery make sure you are getting 12.6v check your fuses, grounds especially. I know the coil pack harness has its own ground.

Kingtal0n · 12-31-2017, 10:34 AM

Wont turn over? Try manually applying 12v to the starter to make it spin.

92SEric240sx · 02-15-2018, 06:57 PM

Starter trigger attached to the starter? There is a plug that slides on the blade for the starter, if this is not on your car won’t turn over

mr.nismo. · 02-25-2018, 06:56 PM

6v at the coils? What about injectors? Start probing backward until you find the resistance issue

Sent from my SM-G955U using Tapatalk

11-14-2017, 12:42 PM	#1
412xx Join Date: Oct 2017 Location: Long Island Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	sr20 won't turn over after fixing ecu / fuel related? EDITED: NEW ISSUES! S13 SR would start after swap, ran extremely rich and would not go above 2500rpms. Turns out the ECU chip was fried. Had the ECU fixed, rechipped and tuned. Plugged it back in, will not start now. The Coil Packs are only getting 6V and not the full 12V and I'm not sure why. Here is what has been checked/done: - Compression: 150-155 across all 4 - Fuel Pressure: 43-45 - Fuel Pump - Great - FPR - stock, works for now will upgrade. - Injectors: Great, 850cc - Spark Plugs: Replaced w/ NGK and has spark - Maf: s13 maf, no changes from when it was running before ECU fix - Ignitor: tested, failed. Borrowed a friends from his car, still did not run. - Coil Packs - getting 6V instead of 12v? This could be part of the issue - Timing - have not checked timing, but it would still run before the ECU fix. Should I check the timing? I didn't think I would have to if I only rechipped my ECU and timing was set at 15? Any ideas? Last edited by 412xx; 11-21-2017 at 07:58 AM..*

02-15-2018, 06:57 PM	#5
92SEric240sx Zilvia Addict Join Date: Aug 2006 Location: The VA Posts: 620 Trader Rating: (32) Feedback Score: 32 reviews	Starter trigger attached to the starter? There is a plug that slides on the blade for the starter, if this is not on your car won’t turn over __________________ RELAX BRO!!!!

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11-21-2017, 08:00 AM	#2
412xx Join Date: Oct 2017 Location: Long Island Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	bump for sad 240 not running

12-29-2017, 06:20 PM	#3
sr vegas 240 Zilvia Junkie Join Date: Dec 2013 Location: vegas Age: 33 Posts: 301 Trader Rating: (12) Feedback Score: 12 reviews	im no expert but I would start with the basic since you are only getting 6v at the coils check the battery make sure you are getting 12.6v check your fuses, grounds especially. I know the coil pack harness has its own ground.

12-31-2017, 10:34 AM	#4
Kingtal0n Post Whore! Join Date: Jul 2005 Location: South Florida Age: 38 Posts: 4,649 Trader Rating: (17) Feedback Score: 17 reviews	Wont turn over? Try manually applying 12v to the starter to make it spin.

02-25-2018, 06:56 PM	#6
mr.nismo. Nissanaholic! Join Date: Feb 2012 Location: Oxnard, CA Age: 28 Posts: 1,876 Trader Rating: (31) Feedback Score: 31 reviews	6v at the coils? What about injectors? Start probing backward until you find the resistance issue Sent from my SM-G955U using Tapatalk