Eg civic engine wire harness the same for cx/dx?
#1
Eg civic engine wire harness the same for cx/dx?
Is the engine wire harness the same for cx and dx?
I have a cx and want to put in a dx motor. Do I need to repin the ecu connector if i use a dx ecu?
I have a cx and want to put in a dx motor. Do I need to repin the ecu connector if i use a dx ecu?
#3
Re: Eg civic engine wire harness the same for cx/dx?
What year and is this USDM or CDM car?
#4
#5
Re: Eg civic engine wire harness the same for cx/dx?
If you have daytime running lights it's CDM. MFG doesn't mean anything as most USDM cars were made in Canada.
The USDM CX and DX is a touch different, like previous poster mentioned, I believe they have different O2 sensors. I think the USDM B8 (CX) may have had the 1 wire O2 while the DX has the 4 wire.
Also another change in the harnesses is the CX may have had a firewall mounted MAP sensor while the DX uses the throttle body MAP sensor. This changes the engine Harness a touch as well as the tower plugs.
The USDM CX and DX is a touch different, like previous poster mentioned, I believe they have different O2 sensors. I think the USDM B8 (CX) may have had the 1 wire O2 while the DX has the 4 wire.
Also another change in the harnesses is the CX may have had a firewall mounted MAP sensor while the DX uses the throttle body MAP sensor. This changes the engine Harness a touch as well as the tower plugs.
#7
Honda-Tech Member
Re: Eg civic engine wire harness the same for cx/dx?
If you have daytime running lights it's CDM. MFG doesn't mean anything as most USDM cars were made in Canada.
The USDM CX and DX is a touch different, like previous poster mentioned, I believe they have different O2 sensors. I think the USDM B8 (CX) may have had the 1 wire O2 while the DX has the 4 wire.
Also another change in the harnesses is the CX may have had a firewall mounted MAP sensor while the DX uses the throttle body MAP sensor. This changes the engine Harness a touch as well as the tower plugs.
The USDM CX and DX is a touch different, like previous poster mentioned, I believe they have different O2 sensors. I think the USDM B8 (CX) may have had the 1 wire O2 while the DX has the 4 wire.
Also another change in the harnesses is the CX may have had a firewall mounted MAP sensor while the DX uses the throttle body MAP sensor. This changes the engine Harness a touch as well as the tower plugs.
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#9
Re: Eg civic engine wire harness the same for cx/dx?
So, Can i use a dx engine wire harness and plug it into the the car wire harness will it work? are the wires pre installed into the body wire harness so i dont have to repin the ecm?
#10
Re: Eg civic engine wire harness the same for cx/dx?
You never stated the year of your car. Or the year the donor harness is coming from.
Last edited by TomCat39; 04-20-2019 at 07:07 AM.
#11
Honda-Tech Member
Re: Eg civic engine wire harness the same for cx/dx?
All '92 Civics had the same wiring between the ECU and the passenger side shock tower, so you can essentially plug in any '92-95 Civic engine harness and not have to wire up VTEC or a 4-wire O2 sensor. You MAY have to deal with the MAP sensor wiring, so simply trace back the three wires from the MAP sensor of the engine harness to the shock tower plug. If the opposing chassis plug has three brown rubber plugs in it instead of wires, you will need to use the MAP sensor wiring that is mounted on the firewall. You can either move those wires to the chassis plug to match up with the engine harness OR use what is on the firewall and run a vacuum line to it OR plug the firewall MAP wiring directly into the MAP sensor on top of the throttle body.
#12
Re: Eg civic engine wire harness the same for cx/dx?
All '92 Civics had the same wiring between the ECU and the passenger side shock tower, so you can essentially plug in any '92-95 Civic engine harness and not have to wire up VTEC or a 4-wire O2 sensor. You MAY have to deal with the MAP sensor wiring, so simply trace back the three wires from the MAP sensor of the engine harness to the shock tower plug. If the opposing chassis plug has three brown rubber plugs in it instead of wires, you will need to use the MAP sensor wiring that is mounted on the firewall. You can either move those wires to the chassis plug to match up with the engine harness OR use what is on the firewall and run a vacuum line to it OR plug the firewall MAP wiring directly into the MAP sensor on top of the throttle body.
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