ENGINE SWAP K20C2 into a 2005 Honda Civic
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ENGINE SWAP K20C2 into a 2005 Honda Civic
Hey all so I have a 2005 Honda Civic stock manual and I have a 2016 Honda Civic LX engine K20C2 with a 6 speed tranny will this swap be possible? I love challenges but I don’t want to spend too much money on something that would be impossible. Luckily it’s a K series engine so I know that specific series works in the 2001-2005 models I just need others opinion on this because I have not seen one car do this kind of swap yet thank you!!
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Rep Power: 0 Re: ENGINE SWAP K20C2 into a 2005 Honda Civic
Yeah I’m just concerned about the advancements in electrical etc in the C2 engine and the 2005 model maybe not having the required parts to have such a new engine in it. Is hondadata another website?
Re: ENGINE SWAP K20C2 into a 2005 Honda Civic
That would be my concern also. Hondata is one of the leaders in Honda swaps. Check them out and maybe send them
an email and they might have an answer. Also Hasport and K Tuner are other companies to look into.
an email and they might have an answer. Also Hasport and K Tuner are other companies to look into.
Dr Krieger of Modification
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From: canada
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Re: ENGINE SWAP K20C2 into a 2005 Honda Civic
...I might be missing something but why are you tuning anything?
You run the 2016
-Engine
-transmission
-harness
-ecu
.........
Then you will need to pin out the signal wires to your gauges. Like the RPM, speedo and what not.
Originally Authored by Atlantis, Thank you Sir! https://www.civicforums.com/forums/1...g-diagram.html
Connector A (31 Pins)
1-blk/wht-Primary O2 sensor heater control
2-yel/blk-Power Source
3-yel/blk-Power source
4-blk-Power ground
5-blk-Power ground
6-wht-Primary O2 sensor
7-blu-Crankshaft position
8-yel-Sensor return volt
9-red/blu-Knock sensor
10-grn/yel-Sensor ground
11-grn/wht-Sensor ground
12-blk/red-Idle air control valve
13-wht/blk-EGR Valve position
14-blk/wht-Secondary O2 sensor heater control
15-red/blk-Throttle position sensor
18-wht/grn-Vehicle speed sensor
19-grn/red-MAP Sensor
20-yel/blu-Sensor Voltage Supply
21-yel/red-Sensor Voltage Supply
23-brn/yel-Logic ground
24-brn/yel-logic ground
25-wht/red-Secondary O2 Sensor
26-grn-Top dead center sensor
27-brn-Igniton coil 4
28-wht/blu-coil 3
29-blu/red-coil 2
30-yel/grn-coil 1
Connector B (24 Pins)
2-yel-Fuel injector 4
3-blu-Injector 3
4-red-Injector 2
5-brn-Injector 1
6-grn-Radiator fan control
7-red/blk-A/T Pressure control solenoid valve A
8-red/wht-Engine Coolent sensor
9-blu/blk-VTEC Oil pressure switch
10-wht/blu-Alternator L Signal
13-wht/red-Alternator FR Signal
14-blu/red-EGR Valve
15-grn/yel-VTEC Solenoid valve
16-blk/red-A/T Pressure control solenoid valve B
17-red/yel-Intake air temp sensor
18-wht/grn-Alternator control
21-yel/blu-EVAP Canistor purge valve
Connector C (22 Pins)
1- wht/blk-A/T Pressure control solenoid valve A
2-yel/blu-Torque converter clutch solenoid
4-grn/wht-Shift solenoid B
6-blu/blk-Shift Solenoid A
7-wht/red-Mainshaft speed sensor
8-brn/wht-A/T Pressure control solenoid valve B
9-red-Position switch D3
10-wht-position switch R
11-blu-position switch 2
12-blu/wht-position switch neutral or park
14-grn-countershaft speed sensor ground
15-blu-countershaft speed sensor
18-blu/yel-position switch D3 or D
20-yel-position switch D
21-wht/grn-mainshaft speed sensor ground
Connector E (31 pins)
1-grn/yel-Immobilizer fuel pump relay
2-wht/red-Secondary O2 Sensor
3-brn/yel-Logic ground
4-pnk-Sensor ground
5-yel/blu-Sensor voltage source
6-blk/wht-Secondary O2 sensor heater control
7-red/yel-PGM-FI main relay 1
9-yel/blk-Ignition input signal
12-blu/orn-Cruise control signal
13-wht/blu-Interlock control unit
14-lt grn-Fuel tank pressure sensor
15-grn/red-Electrical load detector
16-lt grn/blk-Power steering pressure switch
18-red-A/C Clutch
20-blu/red-EVAP bypass solenoid valve
21-lt grn/red-EVAP Canister shut valve
22-wht/blk-Brake pedal position switch
23-lt blu-K line
24-yel-Multiplex control unit comm line
26-blu-Engine speed pulse
27-red/blu-Immobilizer code
29-brn-Service check signal
30-red/wht-Write enable signal
31-grn/orn-MIL or check engine light enable
You run the 2016
-Engine
-transmission
-harness
-ecu
.........
Then you will need to pin out the signal wires to your gauges. Like the RPM, speedo and what not.
Originally Authored by Atlantis, Thank you Sir! https://www.civicforums.com/forums/1...g-diagram.html
Connector A (31 Pins)
1-blk/wht-Primary O2 sensor heater control
2-yel/blk-Power Source
3-yel/blk-Power source
4-blk-Power ground
5-blk-Power ground
6-wht-Primary O2 sensor
7-blu-Crankshaft position
8-yel-Sensor return volt
9-red/blu-Knock sensor
10-grn/yel-Sensor ground
11-grn/wht-Sensor ground
12-blk/red-Idle air control valve
13-wht/blk-EGR Valve position
14-blk/wht-Secondary O2 sensor heater control
15-red/blk-Throttle position sensor
18-wht/grn-Vehicle speed sensor
19-grn/red-MAP Sensor
20-yel/blu-Sensor Voltage Supply
21-yel/red-Sensor Voltage Supply
23-brn/yel-Logic ground
24-brn/yel-logic ground
25-wht/red-Secondary O2 Sensor
26-grn-Top dead center sensor
27-brn-Igniton coil 4
28-wht/blu-coil 3
29-blu/red-coil 2
30-yel/grn-coil 1
Connector B (24 Pins)
2-yel-Fuel injector 4
3-blu-Injector 3
4-red-Injector 2
5-brn-Injector 1
6-grn-Radiator fan control
7-red/blk-A/T Pressure control solenoid valve A
8-red/wht-Engine Coolent sensor
9-blu/blk-VTEC Oil pressure switch
10-wht/blu-Alternator L Signal
13-wht/red-Alternator FR Signal
14-blu/red-EGR Valve
15-grn/yel-VTEC Solenoid valve
16-blk/red-A/T Pressure control solenoid valve B
17-red/yel-Intake air temp sensor
18-wht/grn-Alternator control
21-yel/blu-EVAP Canistor purge valve
Connector C (22 Pins)
1- wht/blk-A/T Pressure control solenoid valve A
2-yel/blu-Torque converter clutch solenoid
4-grn/wht-Shift solenoid B
6-blu/blk-Shift Solenoid A
7-wht/red-Mainshaft speed sensor
8-brn/wht-A/T Pressure control solenoid valve B
9-red-Position switch D3
10-wht-position switch R
11-blu-position switch 2
12-blu/wht-position switch neutral or park
14-grn-countershaft speed sensor ground
15-blu-countershaft speed sensor
18-blu/yel-position switch D3 or D
20-yel-position switch D
21-wht/grn-mainshaft speed sensor ground
Connector E (31 pins)
1-grn/yel-Immobilizer fuel pump relay
2-wht/red-Secondary O2 Sensor
3-brn/yel-Logic ground
4-pnk-Sensor ground
5-yel/blu-Sensor voltage source
6-blk/wht-Secondary O2 sensor heater control
7-red/yel-PGM-FI main relay 1
9-yel/blk-Ignition input signal
12-blu/orn-Cruise control signal
13-wht/blu-Interlock control unit
14-lt grn-Fuel tank pressure sensor
15-grn/red-Electrical load detector
16-lt grn/blk-Power steering pressure switch
18-red-A/C Clutch
20-blu/red-EVAP bypass solenoid valve
21-lt grn/red-EVAP Canister shut valve
22-wht/blk-Brake pedal position switch
23-lt blu-K line
24-yel-Multiplex control unit comm line
26-blu-Engine speed pulse
27-red/blu-Immobilizer code
29-brn-Service check signal
30-red/wht-Write enable signal
31-grn/orn-MIL or check engine light enable
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Posts: 5,073
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From: Ohio
Rep Power: 224 Re: ENGINE SWAP K20C2 into a 2005 Honda Civic
It would probably be easier to grab an ECU from a RSX and then get Kpro or equivalent and a tune. Adapters can be found for the older ECUs so no splicing would need to be done.
I would guess the newer ECU has different connectors, different terminals, uses different communication protocols, etc.
I would guess the newer ECU has different connectors, different terminals, uses different communication protocols, etc.
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