ECU Compatible? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Tensor187x · 06-17-2009, 06:59 PM

Whats up guys, just need some clarification whether or not this ECU is compatible with my s14 Zenki SR.

Picked up this ECU off a forum member here and he told me it came off his Zenki SR. He had never run it after getting it back from having the daughter board soldered in (Nistune). I hooked it up in my car and my car ran with the ECU in but it was having some idle issue. Whenever i would come to a stop the car would drop RPM's to about 200-500RPM. I'm thinking it's because i need to have the ECU fine tuned since it only has a base map of the list i gave him that was on my car....

Well enough of that. Here are the ECU's. The red one is the one i got when i purchased my front clip, and the black one is the one i purchased a couple days ago.

Thanks guys!

Tensor187x · 06-17-2009, 09:34 PM

Nobody's aware? :P

Boostedkouki · 06-17-2009, 09:47 PM

Ecu code WC is for a S14 Zenki but im pretty sure the red and black lettering on the ecu are different.

Tensor187x · 06-17-2009, 09:57 PM

Quote:

Originally Posted by Boostedkouki

Ecu code WC is for a S14 Zenki but im pretty sure the red and black lettering on the ecu are different.

Im kind of thinking that the color is from different years, but both for zenki. Even the numbers on the ECU are diff.

Tensor187x · 06-17-2009, 10:58 PM

Believe i found my answer! Was looking at zilvia posts and it seems Norm had the answer on a diff post.

Forgot where I got this from but I believe it's correct:

ECU Codes

RED WC is from a 95-96 S14 Silvia Zenki
BLACK WC is from a 96-97 S14 Silvia Chuki (transition, different MAF plug)
NA is from a 97-98 s14 Silvia Kouki 5 speed

62 is from a 91-93 180sx or S13 Silvia 5 speed
63 is from a 91-93 180sx or S13 Silvia automatic

E5 is from a 94-96 180sx black top 5 speed
E6 is from a 94-96 180sx blacktop automatic

J4 is from a 97-98 180sx Kouki 5 speed
J5 is from a 97-98 180sx Kouki Automatic

Also:
S14 Zenki SR20 with Red WC ECU has a rectangle MAF plug
S14 Chuki SR20 with Black WC ECU has an oval MAF plug,
S14 Kouki SR20 with Black NA ECU has an oval MAF plug

06-17-2009, 06:59 PM	#1
Tensor187x BANNED Join Date: Nov 2007 Location: OC Age: 38 Posts: 179 Trader Rating: (1) Feedback Score: 1 reviews	ECU Compatible? Whats up guys, just need some clarification whether or not this ECU is compatible with my s14 Zenki SR. Picked up this ECU off a forum member here and he told me it came off his Zenki SR. He had never run it after getting it back from having the daughter board soldered in (Nistune). I hooked it up in my car and my car ran with the ECU in but it was having some idle issue. Whenever i would come to a stop the car would drop RPM's to about 200-500RPM. I'm thinking it's because i need to have the ECU fine tuned since it only has a base map of the list i gave him that was on my car.... Well enough of that. Here are the ECU's. The red one is the one i got when i purchased my front clip, and the black one is the one i purchased a couple days ago. Thanks guys!

06-17-2009, 09:34 PM	#2
Tensor187x BANNED Join Date: Nov 2007 Location: OC Age: 38 Posts: 179 Trader Rating: (1) Feedback Score: 1 reviews	Nobody's aware? :P

06-17-2009, 09:47 PM	#3
Boostedkouki Zilvia Member Join Date: Aug 2007 Location: 305 Age: 39 Posts: 269 Trader Rating: (1) Feedback Score: 1 reviews	Ecu code WC is for a S14 Zenki but im pretty sure the red and black lettering on the ecu are different.

06-17-2009, 10:58 PM	#5
Tensor187x BANNED Join Date: Nov 2007 Location: OC Age: 38 Posts: 179 Trader Rating: (1) Feedback Score: 1 reviews	Believe i found my answer! Was looking at zilvia posts and it seems Norm had the answer on a diff post. Forgot where I got this from but I believe it's correct: ECU Codes RED WC is from a 95-96 S14 Silvia Zenki BLACK WC is from a 96-97 S14 Silvia Chuki (transition, different MAF plug) NA is from a 97-98 s14 Silvia Kouki 5 speed 62 is from a 91-93 180sx or S13 Silvia 5 speed 63 is from a 91-93 180sx or S13 Silvia automatic E5 is from a 94-96 180sx black top 5 speed E6 is from a 94-96 180sx blacktop automatic J4 is from a 97-98 180sx Kouki 5 speed J5 is from a 97-98 180sx Kouki Automatic Also: S14 Zenki SR20 with Red WC ECU has a rectangle MAF plug S14 Chuki SR20 with Black WC ECU has an oval MAF plug, S14 Kouki SR20 with Black NA ECU has an oval MAF plug