I finally got my S14 SR engine. Wrong ECU?

[nyamping]

So I got this ECU with number 23710 80F00, which suggests an S14 ECU. But the pinout is like 9/8/7/8, which is for an S13?

Could anyone help me with this? I can't believe they gave me wrong ECU.

Also the MAF air is also wrong 22680 40F00, which is for the 240sx SOHC.

[Nismo_Freak]

So I got this ECU with number 23710 80F00, which suggests an S14 ECU. But the pinout is like 9/8/7/8, which is for an S13?

Could anyone help me with this? I can't believe they gave me wrong ECU.

Also the MAF air is also wrong 22680 40F00, which is for the 240sx SOHC.

Slow down there chief, lets get some facts straight before you start droppin names.

What are the letters on the ECU.

[nyamping]

Slow down there chief, lets get some facts straight before you start droppin names.

What are the letters on the ECU.

Sorry. I know I was too emotional. It's been a roller coaster month, really. You're just what I need, please help me and be my judge. Thanks. I included a couple of pictures on the ECU.

[nyamping]

Slow down there chief, lets get some facts straight before you start droppin names.

What are the letters on the ECU.

Slow down there chief, lets get some facts straight before you start droppin names.

What are the letters on the ECU.

More pictures.

[SpeedRacer1]

That is an ECU for a 1997-1998 S14 SR20DET manual transmission. Which means one of two things. Either it came with the engine and your engine is a later model kouki S14 engine, congratulations they are more rare than the earlier models and newer. Or the ECU does not fit the harness supplied with the engine, in which case you need to get an ECU that says WC on it in black or red lettering.

And yes the pins of the "NA" ECU are the same as S13 SR's. The early model S14 SR's got more pins than the S13 and kouki S14 SR ECU's.

[karmakaze]

Also the MAF air is also wrong 22680 40F00, which is for the 240sx SOHC.

The Maf from the SOHC KA24 will work with the SR20

[nyamping]

The Maf from the SOHC KA24 will work with the SR20

Thank you speed, I dont have the engine yet, it will be here Monday. The ECU, MAF and harness are shipped from the shop. The engine is now on its route from Canada.

Karma, I read somewhere that this SOHC MAF will only work with S13 (voltage level diff)? Is this the case?

Thanks again guys for your assistance.

[WhiteKoukiS14]

The Maf from the SOHC KA24 will work with the SR20

the maf from a SOHC wont work on a S14 SR, you have to use a s14 zenki MAF if that is what yr your motor is, judging by that ecu ur motor is a Kouki model which uses a s14 kouki\s15 maf

[nyamping]

the maf from a SOHC wont work on a S14 SR, you have to use a s14 zenki MAF if that is what yr your motor is, judging by that ecu ur motor is a Kouki model which uses a s14 kouki\s15 maf

Thanks dude. Is the S14 Zenki and Kouki MAF interchangeable? Will S14 Zenki MAF works with my kouki ECU?

[SpeedRacer1]

The zenki and kouki MAFS are interchangable but the plugs are different. They will give off the same voltage.

[nyamping]

The zenki and kouki MAFS are interchangable but the plugs are different. They will give off the same voltage.

Dude I finally got my engine, it was drop shipped from Engine Land through Zerolift. But it is the zenki one (by the harness serial number). The engine also has gunk (oil plus sand/dust) build up on the engine block wall facing the front, to the left of the A/C compressor.

Question numero uno, does it means I have a leaky engine block (holes somewhere in the block)? It also got HKS boost solenoid, divorced dump pipe and downpipe (hint of abuse).

can I use Kouki ECU and harness with Zenki Engine?

[SpeedRacer1]

Dude I finally got my engine, it was drop shipped from Engine Land through Zerolift. But it is the zenki one (by the harness serial number). The engine also has gunk (oil plus sand/dust) build up on the engine block wall facing the front, to the left of the A/C compressor.

Question numero uno, does it means I have a leaky engine block (holes somewhere in the block)? It also got HKS boost solenoid, divorced dump pipe and downpipe (hint of abuse).

can I use Kouki ECU and harness with Zenki Engine?

Crap on the front of the engine is not a sign of a blown block. The block can gather a ton of junk over the years. Best case scenario is that the engine is just dirty. Likely scenario the is that the front main seal or valve cover gasket needs to be replaced.

Unless you see a connecting rod hanging out the side of the engine, the engine is still good.

Most engines that come to the US have at least some mods. Abuse is almost a given unless a 100 year old Japanese grandma owned the car before it was shipped to the US. Abuse isnt a big issue if the engine isnt already blown or has an internal issue.

If you have a matching ECU and harness you can use them on an S14 SR20DET of any year.

[nyamping]

Crap on the front of the engine is not a sign of a blown block. The block can gather a ton of junk over the years. Best case scenario is that the engine is just dirty. Likely scenario the is that the front main seal or valve cover gasket needs to be replaced.

Unless you see a connecting rod hanging out the side of the engine, the engine is still good.

Most engines that come to the US have at least some mods. Abuse is almost a given unless a 100 year old Japanese grandma owned the car before it was shipped to the US. Abuse isnt a big issue if the engine isnt already blown or has an internal issue.

If you have a matching ECU and harness you can use them on an S14 SR20DET of any year.

Lmao. Yeah.... my grandma drifts once in a while.... lol, I got a stomach ache when I read it. hahahaha.

I can see it likely the front main seal, since the carp is "evaporating" from downunder (metal facing down collects them, the top part of the engine looks clean). Is this seal easy to replace?

[SpeedRacer1]

The seal is fairly easy to replace. With the right tools its probably a 20 minute job when the engine is out of the car.

The steps are:Take off crank pulley. Pry out old seal. Put in new one facing proper direction. Install crank pulley.

Taking off the pulley is the hardest part without air tools. Just use a couple flatheads to shimmy off the crank pulley.

[WhiteKoukiS14]

Dude I finally got my engine, it was drop shipped from Engine Land through Zerolift. But it is the zenki one (by the harness serial number). The engine also has gunk (oil plus sand/dust) build up on the engine block wall facing the front, to the left of the A/C compressor.

Question numero uno, does it means I have a leaky engine block (holes somewhere in the block)? It also got HKS boost solenoid, divorced dump pipe and downpipe (hint of abuse).

can I use Kouki ECU and harness with Zenki Engine?

check your harness and ecu, if they arent correct then your gonna need another ECU or another harness, s14 harnesses are hard to come by and very expensive, you can catch a ECU on ebay every once in a while, I do have a extra zenki ECU that works perfectly, but I will prob only get rid of it for the right price as i was going to use it for rom tuning...

[nyamping]

The seal is fairly easy to replace. With the right tools its probably a 20 minute job when the engine is out of the car.

The steps are:Take off crank pulley. Pry out old seal. Put in new one facing proper direction. Install crank pulley.

Taking off the pulley is the hardest part without air tools. Just use a couple flatheads to shimmy off the crank pulley.

Thanks. I'm looking at the FSM now. Looks pretty straight forward. Any chance that the gunk comes from the front cover with bad gasket? I think removing the oil pump is too overwhelming for me...gotta deal with the timing chain and stuff.

Both sides of engine as well as the top part (right below valve cover gasket), looks clean.

[SpeedRacer1]

Usually what happens with a front main seal is that is leaks oil. Then the oils gets flung out all over the engine. The oil just sits on the front of the engine and collects dirt.

Try the front main seal first. Run the car with the front of the engine clean. If you see oil on the front again go from there.

[wookieballa]

i am in great need of that s14 kouki ecu you got by mistake, so if you need a zenki, i will buy the kouki from you like asap!! mines fried, so i need to replace it. until i get a replacement, cars dead. let me know if you want to part with it . thank you.

home email addy: [email protected]

[NY S13 SR]

Most engines that come to the US have at least some mods. Abuse is almost a given unless a 100 year old Japanese grandma owned the car before it was shipped to the US.

No so at all, 9 out of 10 engines we get are completely unmodified and still have the stock clutch and turbo. It seems a lot of owners in Japan DO leave them unmodified - and hopefully not abused.

__________________Jeff Hhttp://www.heavythrottle.com

[keaning]

can i get pics of that ecu? because i got whats supposed to be a kouki sr20det and kouki ecu but i need to make sure its the right ecu, and theres no NA or WC or any numbers on it. but the wiring harness that came with the motor is the same as the kouki harness i ordered from wiringspecialties(wire colors leading to pins in ecu) so im assuming its right but i still need to know

[PyR0NiAk]

can i get pics of that ecu? because i got whats supposed to be a kouki sr20det and kouki ecu but i need to make sure its the right ecu, and theres no NA or WC or any numbers on it. but the wiring harness that came with the motor is the same as the kouki harness i ordered from wiringspecialties(wire colors leading to pins in ecu) so im assuming its right but i still need to know

Welcome to NICO. Unlike most new guys, you've obviously found the search feature. Unfortunately, this thread is from 2005. The OP will most likely not see or respond to this. If you check the FAQ, you should find all of the stuff you need as far as identifying what parts you have.

[sileighty85]

can i get pics of that ecu? because i got whats supposed to be a kouki sr20det and kouki ecu but i need to make sure its the right ecu, and theres no NA or WC or any numbers on it. but the wiring harness that came with the motor is the same as the kouki harness i ordered from wiringspecialties(wire colors leading to pins in ecu) so im assuming its right but i still need to know

here is a picture of my s14 97-98 sr20 kouki ecu(NA)

[keaning]

Thanks. Also how do you post threads? I can't figure it out for any forum. A bit off topic

[PyR0NiAk]

Thanks. Also how do you post threads? I can't figure it out for any forum. A bit off topic

Go to the forum, and click "New Topic"

[idahotuner]

people swap covers out on ecus also