i need help and i noticed the underdash harness are missing a few wires, but everything is plug and play. it cranks but its not giving enough juice to start the gsr..i was just wondering if i need to add or jump any harness..the set up is B18C engine with a 00 em1 engine harness witha p28ecu but has a jumper harness from a OBD2 to OBD1..please help thank you..

 

Why are you running a P28?

 

idk thats the only ecu i can run right now or should i get a p72? but shouldn't it start anywayz?

 

So you are trying to start you gsr on a stock p28?

 

ok just put on the p72 and still wouldn't start..anymore questions LOL i thought i was the one asking the questions not answering

 

What year of P72 ecu do you have? The newer model have oem immobilizers built in

 

You could have a problem elsewhere . You says it cranks right? What do you mean, "its not giving enough juice to start the car"? Check and make sure you are getting fuel and spark. Also make sure you did not cross the connectors for the map sensor and iacv because it is a common mistake.

 

its a 98 p72 well thats what my nephew told me because im using his. it cranks up yes but it doesn't start. sounds like its dying. all of the wiring to the motor are connected correctly..but i was just wondering if the dash harness are different and if i need to change that out. thanks for your replies

 

what dash harness are different?

 

ek coupe dash harness and ek hatch dash harness..they are different. because i do have both car at my house right now. i know i can swap dash harness just wondering if there's a easier solution.

 

BUT would it fit if i do swap dash harnesses. from a 98 ex coupe to a 99 DX hatchback

 

I dont know for sure will it work but if I had to guess i would say that it would fit because they are both Ek. Try it and see what happens.

 

its way to much work to take it out and what if you doesn't fit correctly? 96-98 climate control and 99-00 climate control are different too so im kinda iffy about doing that..im just waiting on a sunny day to i can just open up the engine harness and reattach the wiring but not sure if thats a good idea or not either. thats why im asking

 

why are you missing wires?

 

im missing wires from under the dash harness not the motor harness..ek hatchies have 2 harness that connects to 1. the engine harness 2. to the ecu but then again the b16 harness has 4 connector 1. 3 harness connects to the ecu 2. connects to the green (under dash harness). i know its a wiring problem NOT the motor..just need some help

 

I didn't see that you said the other car was 99-00 civic till now. But like you said the cabin harness is probably different being that is obd2b and the different climate control setup. I would make sure you are getting fuel and spark and all your connections are correct first.
What year is the car the gsr motor going into?

 

the 98gsr is going into the 99 ekhatchie

 

crazy that if i put it in my ek ex coupe it'll plug right in and i wouldn't have this problem..i guess im gonna have to look for a 99-00 ex coupe under dash harness smh* no easier solution =(

 

ek9 huh?

 

yes ek9

 

So its a real ek9?what year 99 right? And you said your using an si harness?I suppose a u.s. one

 

i'm confused. what year is your hatchback? if it's a 96-98, use a 96-98 harness and modify whatever you need to. an ex harness will make it a lot easier, but your stock non-vtec will work also.

 

the engine harness im using now is off a b19a that came off a 98 ex coupe thats going into a 99hatchie

 

its a 99 ek hatch..if i knew how to post pictures i would show everyone

 

What engine harness? You mean b16a or what you said b19a and you said it came off a 98 coupe..so is your car a real ctr or not it make a difference or is that just what or you just think it is an ek9?