S14a to S15 Conversion Harness - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

ForcedNduction · 11-17-2009, 03:15 AM

Wondering if anyone has made a conversion harness for a S15 motor. My s15 ecu is damage rendering it inop. I am currently trying to aquire an s15 "QT" ecu. I have made ka conversion harnesses in the past so making an s14a to s15 harness wouldnt be a problem. The schematics for both motors appear to have all of the same components.

I know the S14a would require a tune to accomodate the S15's larger turbo and injectors.

What do you guys think?

irax · 11-17-2009, 04:56 AM

you mean converting s15 sr ecu to s14a sr ecu? like a harness patch loom? i don't know, but i figure it would be easier to use a s14a sr harness and tune the ecu for s15? like i said idk.

ForcedNduction · 11-17-2009, 12:44 PM

Yeah running a s14a ecu with a s15 motor. I have heard of people using the S14a engine harness with s15, but I dont have one and have already rewired the dash connector for my car.

ForcedNduction · 12-05-2009, 02:34 AM

Anyone with a good s14a ecu laying around. Anyone with input?

11-17-2009, 03:15 AM	#1
ForcedNduction Join Date: Feb 2009 Location: Phx Az Posts: 37 Trader Rating: (0) Feedback Score: 0 reviews	S14a to S15 Conversion Harness Wondering if anyone has made a conversion harness for a S15 motor. My s15 ecu is damage rendering it inop. I am currently trying to aquire an s15 "QT" ecu. I have made ka conversion harnesses in the past so making an s14a to s15 harness wouldnt be a problem. The schematics for both motors appear to have all of the same components. I know the S14a would require a tune to accomodate the S15's larger turbo and injectors. What do you guys think?

11-17-2009, 04:56 AM	#2
irax Post Whore! Join Date: Aug 2003 Location: San Diego Age: 40 Posts: 4,248 Trader Rating: (4) Feedback Score: 4 reviews	you mean converting s15 sr ecu to s14a sr ecu? like a harness patch loom? i don't know, but i figure it would be easier to use a s14a sr harness and tune the ecu for s15? like i said idk. __________________ Drives a BRZ and is building a V6 S12 coupe.

11-17-2009, 12:44 PM	#3
ForcedNduction Join Date: Feb 2009 Location: Phx Az Posts: 37 Trader Rating: (0) Feedback Score: 0 reviews	Yeah running a s14a ecu with a s15 motor. I have heard of people using the S14a engine harness with s15, but I dont have one and have already rewired the dash connector for my car.

12-05-2009, 02:34 AM	#4
ForcedNduction Join Date: Feb 2009 Location: Phx Az Posts: 37 Trader Rating: (0) Feedback Score: 0 reviews	Anyone with a good s14a ecu laying around. Anyone with input?