Vtec Wiring

[macdog320]

I just changed my 94 vtir integra engine to a 96 type r engine. The type r ecu does not fit the car hence it is running on the old vtir ecy for the time being. Also the vtec has not been set up properly, from looking at the old engine it is missing a green pin from the module on the engine and the wire that plugs in. Can i take the pin from the vtir engine and put it on the type r motor, and where do i pick the vtec wire up from? I realise there are 2 wires, the second one is plaugged in. As for the ecu, the only sensible option is an aftermarket ecu, right? thanks.

[VTec1987]

If your running the vtir wiring loom, you will need a conversion harness (OBDI to OBDII) to run the type r ecu (p73), or get a P28 ecu (OBDI) or your current ecu with type r base mapping on it. Ask "ECU MAN" to get it done for you. I wouldnt run the vtir ecu on that motor, cos the vtec on that ecu kicks in at 4400 rpm.

What you mean the vtec is not setup properly? Are you talking about the Vtec Solenoid?

[GSi_PSi]

macdog , any chance u wana sell ur old engine?

[macdog320]

Im obviously not too sure wat im talking about here, the module that sits on the side of the head, is missing a wire into it, and i cant find it on the harness either. How do i go about getting an adaptor made up and how much would it cost? Finally im pretty sure vtec kicked in at around 5700 on the old engine.

The old engine, the head self destructed when the timing belt slip, so that needs machining and new valves.

[macdog320]

Sorry just to clarify things the car has the type r wiring loom, and vtir computer, they coulndt get the type r ecu to fit in the car cos its jap

[VTec1987]

Dude i really think you need to explain from scratch again. If your using type r loom, why cant u use the jap ecu? Im pretty sure you can buddy.

Are you using OBDI wiring loom or OBDII? Check ur dizzy, if its 2 plug den its OBDI, if its one plug then its OBDII.

With the wire that your talking about, you probably need the vtec adpater plug. Just go to local wreckers and find one. Most vtec use the same adapter.

With the vtir ecu (p72), vtec kicks in at 4400rpm, what ever your hearing from 5700rpm is the secondaries opening up (IAB)

[macdog320]

Sorry, im about as confused as you are, my mechanic was a douche bag. He told me The engine and wiring loom is in, however 'the ecu does not fit the car'. It looks like OBDII is on the car at the moment and the and the old engine had an OBDI. I am assuming that the different ECU's have the vtec set up differently and plug in differently? On they type r engine everything seems to be plugged in. The old engine had another plug on the vtec module.
For the time being could i swith the modules and dizzy's and wire them in to achieve vtec? Also, if I attempt to change the ECU's around is there anything i need to do so i dont stuff anything?

[VTec1987]

i think you mean the vtec pressure sensor. ObdII motor does not have vtec pressure. Thats why your type R motor doesnt have one. Your vtir motor has vtec pressure cos its OBDI.
type r ecu (p73) got different vtec point then Vtir (p72).

Why cant the type r ecu fit? The plug are different or what?

[macdog320]

To be honest I havent had a play with it yet, I will tomorrow and let you know. But as you said I cant imagine why it wouldnt fit its out of the same car. Although i did talk to a shop that imports jap engines and halfcuts and he said this kind of thing does happen quite often and the only sensible solution is an aftermarket ecu.

[Benson]

Stupid mechanics are trying to rip you off... use the search button and you'll find your anwer.

Search what obd is your car and the halfcut and go from there

[AKmotorworks]

Macdog, you are effecitvely runing an obd2 dizzy/vtec solenoid in an obd1 chassis, the pin outs are not the same.

The green plug u mentioned is the VTP, it is not needed when running an obd2 ecu (might be other way around, im abit drunk its sunday nite :P)

What you need is either one of our looms or a loom form edgeauto that converts obd1-obd2 if you want to run the factory type R ecu.

I'd recommend to run the factor obd1 and chip it to a tuneable solution which is going to give you more gains than running a stock obd2 ecu.

Andy