ECU Question

LJ 96 200sx se-r · Dec 10th, 2005, 09:55 PM

I'm swapping my stock 2.0 for a JDM SR20DE motor. Will I need to change my ECU?

surferboi_hco · Dec 10th, 2005, 10:40 PM

Quote:

Originally Posted by LJ 96 200sx se-r

I'm swapping my stock 2.0 for a JDM SR20DE motor. Will I need to change my ECU?

thats a given, yea u do u need the SR20DE ECU to have the engine work properly if at all

psuLemon · Dec 11th, 2005, 10:44 AM

Quote:

Originally Posted by surferboi_hco

thats a given, yea u do u need the SR20DE ECU to have the engine work properly if at all

you moron, hes asking if he needs the JDM ecu. you shouldn't, but u will need to swap over the IM and the EGR system.

LJ 96 200sx se-r · Dec 11th, 2005, 12:27 PM

OK I know IM is the Itake Manifold, but not too sure what the EGR is. So would it be best to send my ECU to JDM and have them change it?

makaveli · Dec 11th, 2005, 12:30 PM

Quote:

Originally Posted by surferboi_hco

thats a given, yea u do u need the SR20DE ECU to have the engine work properly if at all

ok 2 things
1.learn how to read and comprehend english...
and 2. dont give advice on somthing your not sure about(trust me)

and whats up with all the put downs, no need to try to make people feel stupid.
thats what you get for tryin to be a dick

makaveli · Dec 11th, 2005, 12:32 PM

Quote:

Originally Posted by LJ 96 200sx se-r

OK I know IM is the Itake Manifold, but not too sure what the EGR is. So would it be best to send my ECU to JDM and have them change it?

EGR=exhuast gas recirculation, dont know 2nd part im a lil confused

psuLemon · Dec 11th, 2005, 12:39 PM

i think he meant JWT not JDM... you shouldn't need to send it to them, but all your emmission equipment needs to be brought over. And unless you have something wrong with your motor, there is really no reason to switch to a JDM motor.

makaveli · Dec 11th, 2005, 12:40 PM

Quote:

Originally Posted by psuLemon

i think he meant JWT not JDM... you shouldn't need to send it to them, but all your emmission equipment needs to be brought over. And unless you have something wrong with your motor, there is really no reason to switch to a JDM motor.

theres no difference between the 2?

psuLemon · Dec 11th, 2005, 12:45 PM

Quote:

Originally Posted by makaveli

theres no difference between the 2?

well the difference is the JDM lacks the EGR system. I think they have 10:1 compression instead of the 9.1:1. So if the end result would be turbo the car, then it would actually be stupid. Without mods, thre might be a 5whp difference. but you need to swap the egr system over, so its kind of self defeating.

LJ 96 200sx se-r · Dec 11th, 2005, 12:48 PM

I thought i could send my original ECU to jdm and they will change it for tha JDM engine ratio's.

psuLemon · Dec 11th, 2005, 12:50 PM

Quote:

Originally Posted by LJ 96 200sx se-r

I thought i could send my original ECU to jdm and they will change it for tha JDM engine ratio's.

JDM = Japanese Direct Market. Jim Wolf Technology is the reprogrammer of the ECU. You might be able to, but its really not worth it, unless you get cams. Like i said, you are better off with a USDM motor.

LJ 96 200sx se-r · Dec 11th, 2005, 12:54 PM

Quote:

Originally Posted by psuLemon

i think he meant JWT not JDM... you shouldn't need to send it to them, but all your emmission equipment needs to be brought over. And unless you have something wrong with your motor, there is really no reason to switch to a JDM motor.

There is somthing wrong with my stock engine a really loud ticking sound down in the engine.

LJ 96 200sx se-r · Dec 11th, 2005, 12:57 PM

Quote:

Originally Posted by psuLemon

JDM = Japanese Direct Market. Jim Wolf Technology is the reprogrammer of the ECU. You might be able to, but its really not worth it, unless you get cams. Like i said, you are better off with a USDM motor.

So what should I do about the swap ? I cant really afford the DET, but I did plan on puttin mods on the JDM engine

psuLemon · Dec 11th, 2005, 01:54 PM

Quote:

Originally Posted by LJ 96 200sx se-r

There is somthing wrong with my stock engine a really loud ticking sound down in the engine.

the ticking is prolly a tensioner. I am gonna move this to the sr20 section. You can prolly get a USDM sr20 for like 400 from members or if you look around. Or just figure out the problem and fix it.

Kindfiend · Dec 12th, 2005, 04:17 AM

Psu, the JDM is 9.5:1, same as the USDM. The only difference in power is from the EGR crap slowing down the US models.

There is a UK assembled SR20 that is 10:1. About 5-10 hp more, I guess.

The ECU should be fine, as long as you swap the intake mani and EGR over. Maybe one or two sensors, as well. I'm not sure, but you can check out www.sr20forum.com for more info on swaps.