Help with eg4 swap d16y8
09-11-2017, 11:11 PM
#1
Help with eg4 swap d16y8
Hello,
Im preparing the swap for my eg4, I get a complete coupe with a d16y8, the problem is that im lost with the wiring, I have the oportunity until this weekend to take all that I need from the coupe.
The problem is that I dont know if I need any part of the wiring and if I cant reuse anything from the eg4 wiring
I heard that the 92 eg is pre-wired for the obd1 engines, how I can check if my car is ready?
There is any possibility to maintain the obd2 hardware by the moment until I earn some bucks for the obd1 hardware and hondata?
eg4 92 obd0 dpfi to d16y8
Sorry for all the cuestions, this is my first engine swap
Im preparing the swap for my eg4, I get a complete coupe with a d16y8, the problem is that im lost with the wiring, I have the oportunity until this weekend to take all that I need from the coupe.
The problem is that I dont know if I need any part of the wiring and if I cant reuse anything from the eg4 wiring
I heard that the 92 eg is pre-wired for the obd1 engines, how I can check if my car is ready?
There is any possibility to maintain the obd2 hardware by the moment until I earn some bucks for the obd1 hardware and hondata?
eg4 92 obd0 dpfi to d16y8
Sorry for all the cuestions, this is my first engine swap
09-11-2017, 11:28 PM
#2
Re: Help with eg4 swap d16y8
Hello,
Im preparing the swap for my eg4, I get a complete coupe with a d16y8, the problem is that im lost with the wiring, I have the oportunity until this weekend to take all that I need from the coupe.
The problem is that I dont know if I need any part of the wiring and if I cant reuse anything from the eg4 wiring
I heard that the 92 eg is pre-wired for the obd1 engines, how I can check if my car is ready?
There is any possibility to maintain the obd2 hardware by the moment until I earn some bucks for the obd1 hardware and hondata?
eg4 92 obd0 dpfi to d16y8
Sorry for all the cuestions, this is my first engine swap
Im preparing the swap for my eg4, I get a complete coupe with a d16y8, the problem is that im lost with the wiring, I have the oportunity until this weekend to take all that I need from the coupe.
The problem is that I dont know if I need any part of the wiring and if I cant reuse anything from the eg4 wiring
I heard that the 92 eg is pre-wired for the obd1 engines, how I can check if my car is ready?
There is any possibility to maintain the obd2 hardware by the moment until I earn some bucks for the obd1 hardware and hondata?
eg4 92 obd0 dpfi to d16y8
Sorry for all the cuestions, this is my first engine swap
09-14-2017, 04:04 AM
#3
Re: Help with eg4 swap d16y8
Any help on this?
I have the complete engine harnes from the ecu to the engine and the p2p ecu, The connector that I dont know how to modify is the drivers side connector, is possible to do this? or I need to change from dpfi to mpfi first and next use a obd0 to obd1 for the ecu and obd0 to obd for the engine hardware?
I have the complete engine harnes from the ecu to the engine and the p2p ecu, The connector that I dont know how to modify is the drivers side connector, is possible to do this? or I need to change from dpfi to mpfi first and next use a obd0 to obd1 for the ecu and obd0 to obd for the engine hardware?
09-14-2017, 10:32 PM
#5
Honda-Tech Member
Re: Help with eg4 swap d16y8
You are likely not getting any help here because you have provided some inconsistent information. In the US, a '92 Civic would be an OBD-1 application and ALL versions/trim levels would have engines that are MPFI and not DPFI. OBD-0 ECU plugs are two different colors (one is milky white and the other two are black and the ECU has a green plug and two black ones) whereas the OBD-1 ECU plugs are all grey (both on the ECU and the chassis plugs). IF you truly have OBD-0 ECU plugs and a DPFI engine... you will need to take detailed pictures of the engine bay and the kick panel where the ECU and plugs are located so we here MAY be able to help you.
OBD-0 and OBD-1 (or 2) components are NOT compatible... but OBD-1 and OBD-2 components are. No, you cannot use a P2P (or any other OBD-2 ECU for that matter) with Hondata... you will have to use an OBD-1 style ECU ('92-95). You will use the original '92 Civic engine harness on the D16Y8 engine... adding the VTEC wiring and modifying the fuel injector and distributor plugs. Try your D15B2 distributor on the Y8 cylinder head... if the bolt holes line up, you can use it without changing the distributor plug on the engine swap. I cannot remember which application works with the Y8 head, but one of them actually does... otherwise, you make an adapter harness for the Y8 distributor plug. You can use EX OBD-1 fuel injectors in place of the Y8 fuel injectors if you don't want to chop off and replace the injector clips... or swap the clips and use the injectors in the Y8 engine. Lastly, with an OBD-1 P28 ECU (or equivalent), it will plug in directly to your chassis harness/ECU plugs. You will not need to alter any wiring at the ECU... the '92 chassis has the VTEC wiring already provided in the chassis harness. Your VTS and VTP wires that you will add to your engine harness will meet the chassis harness at the right side shock tower. The two wires you will be meeting are orange/white and orange/black.
You could convert the car to OBD-2... but WHY ?!?!?! The additional wiring required is a TON of work (especially the fuel tank pressure sensor - you will be pulling the fuel tank and either chopping a hole in it to mount the sensor and running the wires OR modifying a '96-98 Civic fuel tank to fit the car and running the wires), wiring a different charcoal cannister with a purge/cut vent/shut valve, wiring in a secondary O2 sensor... and if you don't have a cat, you will need to DEFEAT this sensor to avoid a CEL, wiring up the data port... all so you can use an ECU that you CANNOT TUNE with Hondata. You could use a GReddy Emanage Ultimate... again, a ton of wiring and pricey... and limited capability.
So essentially you have asked this community to help you do this the REALLY hard way... and I would strongly suggest you keep the car OBD-1.
OBD-0 and OBD-1 (or 2) components are NOT compatible... but OBD-1 and OBD-2 components are. No, you cannot use a P2P (or any other OBD-2 ECU for that matter) with Hondata... you will have to use an OBD-1 style ECU ('92-95). You will use the original '92 Civic engine harness on the D16Y8 engine... adding the VTEC wiring and modifying the fuel injector and distributor plugs. Try your D15B2 distributor on the Y8 cylinder head... if the bolt holes line up, you can use it without changing the distributor plug on the engine swap. I cannot remember which application works with the Y8 head, but one of them actually does... otherwise, you make an adapter harness for the Y8 distributor plug. You can use EX OBD-1 fuel injectors in place of the Y8 fuel injectors if you don't want to chop off and replace the injector clips... or swap the clips and use the injectors in the Y8 engine. Lastly, with an OBD-1 P28 ECU (or equivalent), it will plug in directly to your chassis harness/ECU plugs. You will not need to alter any wiring at the ECU... the '92 chassis has the VTEC wiring already provided in the chassis harness. Your VTS and VTP wires that you will add to your engine harness will meet the chassis harness at the right side shock tower. The two wires you will be meeting are orange/white and orange/black.
You could convert the car to OBD-2... but WHY ?!?!?! The additional wiring required is a TON of work (especially the fuel tank pressure sensor - you will be pulling the fuel tank and either chopping a hole in it to mount the sensor and running the wires OR modifying a '96-98 Civic fuel tank to fit the car and running the wires), wiring a different charcoal cannister with a purge/cut vent/shut valve, wiring in a secondary O2 sensor... and if you don't have a cat, you will need to DEFEAT this sensor to avoid a CEL, wiring up the data port... all so you can use an ECU that you CANNOT TUNE with Hondata. You could use a GReddy Emanage Ultimate... again, a ton of wiring and pricey... and limited capability.
So essentially you have asked this community to help you do this the REALLY hard way... and I would strongly suggest you keep the car OBD-1.
09-15-2017, 12:56 AM
#6
Re: Help with eg4 swap d16y8
You are likely not getting any help here because you have provided some inconsistent information. In the US, a '92 Civic would be an OBD-1 application and ALL versions/trim levels would have engines that are MPFI and not DPFI. OBD-0 ECU plugs are two different colors (one is milky white and the other two are black and the ECU has a green plug and two black ones) whereas the OBD-1 ECU plugs are all grey (both on the ECU and the chassis plugs). IF you truly have OBD-0 ECU plugs and a DPFI engine... you will need to take detailed pictures of the engine bay and the kick panel where the ECU and plugs are located so we here MAY be able to help you.
OBD-0 and OBD-1 (or 2) components are NOT compatible... but OBD-1 and OBD-2 components are. No, you cannot use a P2P (or any other OBD-2 ECU for that matter) with Hondata... you will have to use an OBD-1 style ECU ('92-95). You will use the original '92 Civic engine harness on the D16Y8 engine... adding the VTEC wiring and modifying the fuel injector and distributor plugs. Try your D15B2 distributor on the Y8 cylinder head... if the bolt holes line up, you can use it without changing the distributor plug on the engine swap. I cannot remember which application works with the Y8 head, but one of them actually does... otherwise, you make an adapter harness for the Y8 distributor plug. You can use EX OBD-1 fuel injectors in place of the Y8 fuel injectors if you don't want to chop off and replace the injector clips... or swap the clips and use the injectors in the Y8 engine. Lastly, with an OBD-1 P28 ECU (or equivalent), it will plug in directly to your chassis harness/ECU plugs. You will not need to alter any wiring at the ECU... the '92 chassis has the VTEC wiring already provided in the chassis harness. Your VTS and VTP wires that you will add to your engine harness will meet the chassis harness at the right side shock tower. The two wires you will be meeting are orange/white and orange/black.
You could convert the car to OBD-2... but WHY ?!?!?! The additional wiring required is a TON of work (especially the fuel tank pressure sensor - you will be pulling the fuel tank and either chopping a hole in it to mount the sensor and running the wires OR modifying a '96-98 Civic fuel tank to fit the car and running the wires), wiring a different charcoal cannister with a purge/cut vent/shut valve, wiring in a secondary O2 sensor... and if you don't have a cat, you will need to DEFEAT this sensor to avoid a CEL, wiring up the data port... all so you can use an ECU that you CANNOT TUNE with Hondata. You could use a GReddy Emanage Ultimate... again, a ton of wiring and pricey... and limited capability.
So essentially you have asked this community to help you do this the REALLY hard way... and I would strongly suggest you keep the car OBD-1.
OBD-0 and OBD-1 (or 2) components are NOT compatible... but OBD-1 and OBD-2 components are. No, you cannot use a P2P (or any other OBD-2 ECU for that matter) with Hondata... you will have to use an OBD-1 style ECU ('92-95). You will use the original '92 Civic engine harness on the D16Y8 engine... adding the VTEC wiring and modifying the fuel injector and distributor plugs. Try your D15B2 distributor on the Y8 cylinder head... if the bolt holes line up, you can use it without changing the distributor plug on the engine swap. I cannot remember which application works with the Y8 head, but one of them actually does... otherwise, you make an adapter harness for the Y8 distributor plug. You can use EX OBD-1 fuel injectors in place of the Y8 fuel injectors if you don't want to chop off and replace the injector clips... or swap the clips and use the injectors in the Y8 engine. Lastly, with an OBD-1 P28 ECU (or equivalent), it will plug in directly to your chassis harness/ECU plugs. You will not need to alter any wiring at the ECU... the '92 chassis has the VTEC wiring already provided in the chassis harness. Your VTS and VTP wires that you will add to your engine harness will meet the chassis harness at the right side shock tower. The two wires you will be meeting are orange/white and orange/black.
You could convert the car to OBD-2... but WHY ?!?!?! The additional wiring required is a TON of work (especially the fuel tank pressure sensor - you will be pulling the fuel tank and either chopping a hole in it to mount the sensor and running the wires OR modifying a '96-98 Civic fuel tank to fit the car and running the wires), wiring a different charcoal cannister with a purge/cut vent/shut valve, wiring in a secondary O2 sensor... and if you don't have a cat, you will need to DEFEAT this sensor to avoid a CEL, wiring up the data port... all so you can use an ECU that you CANNOT TUNE with Hondata. You could use a GReddy Emanage Ultimate... again, a ton of wiring and pricey... and limited capability.
So essentially you have asked this community to help you do this the REALLY hard way... and I would strongly suggest you keep the car OBD-1.
I can jump the tank presure sensor
https://honda-tech.com/forums/tech-m...sensor-139302/
And I have the complete exhaust of the cupe, with the lambdas so I dont need to spend anything in this sensors
Today I can take some detailed pictures of what I have in the eg, and the y8 engine and harness
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