I bought a Gs-R a few weeks ago. The car is an original gsr but the guy who had it before me had an LS engine in it and he got drunk and sold his engine and tranny for $100! well he had a Gsr swap back into it a few months ago and i was going throught the car the other day and realized that it came with a 99 civic sohc Ecu... not sure what code/model it is but i want to go back to Gsr ecu but i dont know whether my gsr engine is OBD1 or OBD2.. i found a pretty good deal on a OBD1 for $80 obo. Do u guys thnk it will make become a problem what gsr ecu i use.. or can u help me identify what OBD# my gsr engine is?

Thank you in advance for any suggestions!!!

 

chances are, if theres a 99 civic ecu, your car is a 98 or newer? if so your gonna need an obd2b p72. you can use the obd1 ecu but your going to have to spend the money on an obd1 jumper harness

 

Need more info. What year the integra is. And what year the head is. Look on the front of the head above the exhaust manifold for the numbers. Or if it is a GSR motor, how many O2 sensors do you have before the cat? OBD1 only has 1 and OBD2 has 2.

 

Is the ecu you have in your car now chipped by chance? you can use a sohc ecu on a dohc motor. it just needs to be chipped with a gsr tune on it.

 

I'm going through the nearly the same thing right now accept its a GSR shell with an LS in it and no engine harness.

 

No the car already has an gsr engine it it lol! hahah

 

I dont think so because it doesnt pop vtec, to be honest it maybe and if it were to hit it would be at high RPMs

 

me and my friend are gonna replace a cam seal and tap the engine block so ima check those numbers, is that the only place to find those nubmers on the block?

 

the engine year doesnt matter, whta year is the car? obd1=94-95. obd2a=96-98. obd2b=99-01. find out what year your car is and that will tell you what ecu you need

 

the car doesnt have the stock engine??? i was wondering how i find out what obd# is

 

it doesnt matter what year the engine is, the car determines what obd version your using. if you want to know the year of the engine, look on the cylinder head just above the exhaust manifold, there are 3 stamp's. the one nearest the passenger side of the car is the year the motor was made

 

One way to tell if the motor is obd1 or 2 is by the distributor. if the dizzy has 1 plug it is obd2 and if it has two plugs it is obd1.

 

i agree with john brown

 

would u happen to have a pic of what plugs i should be looking for? i dont know much about the distributer>> thanx
im trying to get this fixed soon ahah

 

the on with two plugs is obd1 and the with one plug is obd2. that will at least clear up what distributor you have.

 

ooohhh cool, thanx bro!!!
ill look into it tomorrow, ima replace the cam seals and tap my block and ill get that cleared out at the same time = D

 

http://phearable.net/. here is a good site to check out too.

 

If its getting chipped your can choose when the vtec engages. Cheapest way to go jus get a p28 and chip it