engine swap (non VTEC d16y7 into 98 Si)
#1
engine swap (non VTEC d16y7 into 98 Si)
I have a 2000 civic DX model with 75,000kms that can't pass inspection for a number of reasons, so I want to swap the motor and transmission into a 1998 si coupe with a destroyed motor, and was wondering if there's anything I should look out for for the swap, are the motor mounts the same? Will the si ecu plug directly into the non VTEC motor that I'm swapping in or should I use my DX ecu? Just looking for any tips/advice you can give~
#2
Re: engine swap (non VTEC d16 into so)
They didn't make an si in 1998 and if they did it would have had a b16a2. Completely different wiring. So do you mean putting an si motor into your car (b16a2) or putting in another d-series from a car that you think is an SI.
#3
Re: engine swap (non VTEC d16y7 into 98 Si)
Or is it a 99 Si? The first year they brought the Si back after 95.
#5
Re: engine swap (non VTEC d16y7 into 98 Si)
Would make trivial bits of information like this more apparent for those of us that don't know every detail of Honda's history.
Was thinking the same thing for foreign manuals, would be awesome if there was a EURO and JAPAN version of Helm Inc. :/
If the Si is a B series motor, it won't be a straight swap, you will need quite a lot for the D16Y7 including intake and exhaust manifolds, ecu, fuel rail, distributor and whatever else the D16 needs that the B16 is different on.
Last edited by TomCat39; 08-21-2014 at 03:09 PM.
#7
I never narc'd on nobody!
iTrader: (1)
Re: engine swap (non VTEC d16y7 into 98 Si)
Thanks for clarifying. Would be nice if there was a Canadian online OEM website like there is 20 of them for USDM.
Would make trivial bits of information like this more apparent for those of us that don't know every detail of Honda's history.
Was thinking the same thing for foreign manuals, would be awesome if there was a EURO and JAPAN version of Helm Inc. :/
Would make trivial bits of information like this more apparent for those of us that don't know every detail of Honda's history.
Was thinking the same thing for foreign manuals, would be awesome if there was a EURO and JAPAN version of Helm Inc. :/
Trending Topics
#8
Re: engine swap (non VTEC d16y7 into 98 Si)
It's all in the details and sometimes I miss some big **** details.
(Original paragraph removed) NVM, I'm getting all *** backwards. I'll keep quiet now.
#9
Honda-Tech Member
Join Date: Aug 2014
Location: Ontario!!!
Posts: 22
Likes: 0
Received 0 Likes
on
0 Posts
Re: engine swap (non VTEC d16y7 into 98 Si)
you need to get an obd2a wire harness from a 96-98 dx or cx with a Y7. the 00 y7 harness will not work in a obd2a car. . . . its obd2b and there is no way to use the Si harness because it will always look for VTEC.
Whats torn up on the Y8 is the head any good . . .swap it onto the y7 block and you can use the complete Si harness, Si intake, Si dizzy . . . that's the only way . . they threw a real kink into these 96-00 with the OBD upgrade for 99+
Whats torn up on the Y8 is the head any good . . .swap it onto the y7 block and you can use the complete Si harness, Si intake, Si dizzy . . . that's the only way . . they threw a real kink into these 96-00 with the OBD upgrade for 99+
#11
I never narc'd on nobody!
iTrader: (1)
Re: engine swap (non VTEC d16y7 into 98 Si)
you need to get an obd2a wire harness from a 96-98 dx or cx with a Y7. the 00 y7 harness will not work in a obd2a car. . . . its obd2b and there is no way to use the Si harness because it will always look for VTEC.
Whats torn up on the Y8 is the head any good . . .swap it onto the y7 block and you can use the complete Si harness, Si intake, Si dizzy . . . that's the only way . . they threw a real kink into these 96-00 with the OBD upgrade for 99+
Whats torn up on the Y8 is the head any good . . .swap it onto the y7 block and you can use the complete Si harness, Si intake, Si dizzy . . . that's the only way . . they threw a real kink into these 96-00 with the OBD upgrade for 99+
#12
Honda-Tech Member
Join Date: Aug 2014
Location: Ontario!!!
Posts: 22
Likes: 0
Received 0 Likes
on
0 Posts
Re: engine swap (non VTEC d16y7 into 98 Si)
lets not misinform the guy . . . what happens when he tries to plug in his obd2a car into the obd2b ecu . .. its not gonna work . . he will have no connection to the dash harness . . .come on man . .. there sure is a really good reason he cant use his obd2b harness in the obd2a car . . .
#15
Honda-Tech Member
Join Date: Aug 2014
Location: Ontario!!!
Posts: 22
Likes: 0
Received 0 Likes
on
0 Posts
Re: engine swap (non VTEC d16y7 into 98 Si)
do you even understand his post? he wants to put his obd2b y7 into an obd2a car . . . the dash harness is different in the 98 than it is in the 00 . . . the y7 harness will not work with the car . . . you know that 3rd plug that connects the car to the ecu . . . .it will not plug into the 2b ecu . . . he needs a 2a ecu and harness . . .maybe stop and read his post then you will understand.
I just went out to my car 00 dx... tried to plug my dash harness into a 2a p2e ecu . . it no fit . . . so . .with that confirmed . . .his 2b y7 harness and ecu will not work in his 2a 98 civic . .. I think its pretty simple and clear. . .
the engine will be out of the car .. change your harness to a 2a y7 for 100 bucks and drop it in with no problems
question answered, enjoy OP
I just went out to my car 00 dx... tried to plug my dash harness into a 2a p2e ecu . . it no fit . . . so . .with that confirmed . . .his 2b y7 harness and ecu will not work in his 2a 98 civic . .. I think its pretty simple and clear. . .
the engine will be out of the car .. change your harness to a 2a y7 for 100 bucks and drop it in with no problems
question answered, enjoy OP
Last edited by TomCat39; 08-21-2014 at 10:39 PM. Reason: Difference of opinion is fine, flaming insults are not. Post Cleanup.
#16
I never narc'd on nobody!
iTrader: (1)
Re: engine swap (non VTEC d16y7 into 98 Si)
There is absolutely zero reason to swap the harness. I've read his post. The OBD2A harness can plug into the OBD2B engine just fine. An OBD2A Y7 ECU can control the OBD2B engine just fine. An OBD2B Y7 ECU with an OBD2A to OBD2B adapter harness can control his OBD2B engine just fine. You are completely over-complicating the process.
Last edited by TomCat39; 08-21-2014 at 10:40 PM. Reason: Post Cleanup for uniformity.
#18
Fish Twig
Join Date: Nov 2005
Location: Still hunting that foo up there
Posts: 15,555
Received 309 Likes
on
285 Posts
Re: engine swap (non VTEC d16y7 into 98 Si)
Stop talking. Seriously. There is absolutely zero reason to swap the harness. I've read his post. The OBD2A harness can plug into the OBD2B engine just fine. An OBD2A Y7 ECU can control the OBD2B engine just fine. An OBD2B Y7 ECU with an OBD2A to OBD2B adapter harness can control his OBD2B engine just fine. You are completely over-complicating the process.
edit: I think the only small issue is trying to reroute certain plugs, but that should not be an issue.
#19
Technical Hero
Join Date: May 2002
Location: Charlotte, NC, 28227
Posts: 9,876
Likes: 0
Received 28 Likes
on
20 Posts
Re: engine swap (non VTEC d16y7 into 98 Si)
If both of your vehicles are 5 speed just remember if you use the 98 Si harness you'll have to convert your IACV to 3 wire at the harness and the ECU. Also the Si secondary oxygen sensor is located at the cat at the end of the collector area and the DX is located at the exhaust manifold so I'd use the Si exhaust manifold just to be easier. Note you may have some issues using the 00 ECU as far a emissions components go (EVAP items) so it might be easier to find a 96-98 ECU for the Y7.
#20
Fish Twig
Join Date: Nov 2005
Location: Still hunting that foo up there
Posts: 15,555
Received 309 Likes
on
285 Posts
Re: engine swap (non VTEC d16y7 into 98 Si)
If he re-uses the current exhaust system in the 98, including header, than he should be fine as long as he uses the ex harness and does the minor changes to it. Saves money that way if he can.
#22
Honda-Tech Member
Join Date: Aug 2014
Location: Ontario!!!
Posts: 22
Likes: 0
Received 0 Likes
on
0 Posts
Re: engine swap (non VTEC d16y7 into 98 Si)
If both of your vehicles are 5 speed just remember if you use the 98 Si harness you'll have to convert your IACV to 3 wire at the harness and the ECU. Also the Si secondary oxygen sensor is located at the cat at the end of the collector area and the DX is located at the exhaust manifold so I'd use the Si exhaust manifold just to be easier. Note you may have some issues using the 00 ECU as far a emissions components go (EVAP items) so it might be easier to find a 96-98 ECU for the Y7.
Thanks for backing me up . . . much appreciated. This guy also knows what he is talking about.
+1 to parts hero !
#24
Fish Twig
Join Date: Nov 2005
Location: Still hunting that foo up there
Posts: 15,555
Received 309 Likes
on
285 Posts
Re: engine swap (non VTEC d16y7 into 98 Si)
do you even understand his post? he wants to put his obd2b y7 into an obd2a car . . . the dash harness is different in the 98 than it is in the 00 . . . the y7 harness will not work with the car . . . you know that 3rd plug that connects the car to the ecu . . . .it will not plug into the 2b ecu . . . he needs a 2a ecu and harness . . .maybe stop and read his post then you will understand.
I just went out to my car 00 dx... tried to plug my dash harness into a 2a p2e ecu . . it no fit . . . so . .with that confirmed . . .his 2b y7 harness and ecu will not work in his 2a 98 civic . .. I think its pretty simple and clear. . .
the engine will be out of the car .. change your harness to a 2a y7 for 100 bucks and drop it in with no problems
question answered, enjoy OP
I just went out to my car 00 dx... tried to plug my dash harness into a 2a p2e ecu . . it no fit . . . so . .with that confirmed . . .his 2b y7 harness and ecu will not work in his 2a 98 civic . .. I think its pretty simple and clear. . .
the engine will be out of the car .. change your harness to a 2a y7 for 100 bucks and drop it in with no problems
question answered, enjoy OP
#25
Fish Twig
Join Date: Nov 2005
Location: Still hunting that foo up there
Posts: 15,555
Received 309 Likes
on
285 Posts
Re: engine swap (non VTEC d16y7 into 98 Si)
lets not misinform the guy . . . what happens when he tries to plug in his obd2a car into the obd2b ecu . .. its not gonna work . . he will have no connection to the dash harness . . .come on man . .. there sure is a really good reason he cant use his obd2b harness in the obd2a car . . .
Time is money right, so why not use what you got right in front of you?
Thread
Thread Starter
Forum
Replies
Last Post