hey guys i picked up this integra LS with GSR motor swapped

but i i found out that my ecu is for ls! (p75?)

so my question is i need to get a gsr ecu which is p72 right?

and also the vtec wires...im very confused with it i dont think its connected..

so the first thing is to get ecu??

 

Yes you need to get a P72 ecu first then wire vtec, knock sensor, and the IAB if you have a stock intake manifold.

 

or for $100 bucks you can get your p75 chipped to run vtec by phearable.net and get the whole nine ,launch control, ect....

 

thx for the info!! but thats pretty cheap..i thought p72 goes for 200 lol

 

oh okay i see i see

is it really hard to wire vtec and knock sensor etc??

 

Yea you can get it chipped ect. but if your not gonna mod it muc just get a stock gsr ecu the same year as the motor.

You can buy a wire harness from rywire.com to convert all the vtec ect plugs to connect to the ls harness. its no more than $160 i think.

since you say you don't think te vtec wires are hooked up! why do you think this? because if you came to the conclusion based on that the motor will not engage vtec than your wrong cause that would go back to the ls ecu.

post pics so we all can see the mayhem! than get a gsr ecu and see how it runs! see if there's check engine codes ect..

 

hey! thanks for the info.

anyways my friends check the wires from the engine bay and he said its not conncted..
plus i do have a p75 lol redlines at 6700 just like ls! haha

so basically i need a p72 gsr ecu
but i hope its not hard to wire all those thing

 

I had these in my phone from when I wired te vtec knock and iab.
It's very simple takes about 20-30 mins max.
I got a wicked deal on te car because vtec wouldn't kick.

 

The wiring portion of the swap isn't too hard to do.

 

Also what obd is the car and motor?

 

oh wow lol

same here bro! vtec is not connected so he sold the car very cheap lol

 

its obd1 i believe

 

Super easy to wire, make sure you let the car warm up before you go cracking vtec. Who knows when the last time it was engaged.

 

A couple ways to figure out what obd your car is.


Gsr engine specific. Your head will be stamped with either p72-1 or p72-2

 

PM me if you need any help

 

Very easy. I paid $125 for my obd1 p-72 ecu off ebay. I waited till someone with a over priced ecu couldn't sell it then I made a offer he accepted.

 

I bought the needed wires to hook up vtec and knock sensor from HondaPartHero for pretty cheap. Alot cheaper than 160.

 

...you could use speaker wire if you wanted.

 

thank you! this is great

 

Good to see all the positive help here! this thread just might come in handy to many people haha!

 

i know right?