will a jdm itr swap be a direct swap in for a 99 si any info is appreciated

 

yes

 

even as far as all the harnesses and the stock si ecu be used or does it have to be the type r

 

The harness should convert over as long as it is the OBD, and the ecu should work as well. But you would be better off getting a type r ecu because it has better fuel maps and so on. This is to the best of my knowledge, and i do not in any way claim to be an expert.

 

you would need the stock mounts and brackets from the b16... pretty sure you can use the civic si ecu but you won't be using the type r's full potential.. fuel/ vtec engage/ redline

 

A USDM Si ECU will NOT run a JDM ITR motor unless you do the following:

-add a crank angle knock sensor or do some rewiring so the ECU won't notice it's not there
-add a VTEC solenoid with the oil pressure switch or do some rewiring so the ECU won't notice it's not there

I think that should be all you need to do.

 

Use the JDM ITR ecu.

Try to get a OBD-2B ecu so you don't have to use a jumper harness.

You'll need the two post mounting bracket from the Si on the timing belt side. Integras use 3-post mounts.

You'll need to change the plug on the IAT sensor and convert it for use on the intake manifold instead of on the intake piping like the USDM B16 uses.

Other than that, it's fairly easy to swap. I'm sure I'm forgetting something.

 

Driver mount is different and use an obd2a jdm itr ecu...or go hondata...

If you need someone to do the swap im the guy you need to see...let me know.gl

 

yes.
no, read above post.

 

What the hell are you talking about? What is a "crank angle knock sensor"? Do you mean a knock sensor or a crank angle sensor?

Why are you trying to confuse people with meaningless crap?

At to make things worse, you're not talking about either actually..

The crank angle sensor is in the distributor (which they all have) , and the knock sensor is completely unrelated (and all B-series VTEC engines have that too). If you try to bypass the crank angle sensor, which is one of the main sensors the ECU uses to determine engine angular position, you're in a world of hurt. It's hard to inject fuel and fire a spark plug if you don't know where the pistons are except when you're at top dead center and at the cylinder one position.

You're talking about a crank fluctuation sensor, it picks up off of the crank gear down by the oil pump. USDM ODB2 cars generally have it, JDM generally doesn't. A USDM oil pump (with CKF sensor) and USDM crank gear (with a new woodruff key because the ITR woodruff key is permanently attached) is all you need if you want to use a USDM OBD2 ECU.

You might have to do something about the immobilizer if you use the ITR ECU (I don't remember, do some research), but I would still suggest using that because it has the correct mapping and parameters for the ITR engine. So you'll be de-tuning the engine if you use the B16 ECU.