civic hx problem with swap
09-17-2009, 03:35 PM
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civic hx problem with swap
civc hx ecu problems on swap engine
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hey all, i've been having some issues with my 97 hx. first of all i just wanna add that my engine(d16y5) blew up(pistons). and i needed a new engine asap. so i was looking around and found a D15B. I do know about the hx having the vtech-E and wide band o2 sensor. so what i did before the installation, i swap the intake manifold exhaust manifold(with the cat and the two O2s) and the wire harness. everything else belong to the D15B like head, block and tranny.
THE PROBLEM!!!-(when the installation was done) I started the car up, the car started with a low idle. so I left it for a while and everything was well, so it was time for a test drive and while in 1st gear, the engine started to hassitate and lack of power till 2500 rpms, and pretty much that was the same result in all gears up to 4th because in 5th was mostly cruise. in every stop in a small incline, it was like mission impossible for the car to go unless i let the clutch go at 2500rpms or higher.
THE QUESTION- Do u think that if i change the head(reason-compression difference if any and Vtech difference) from my D16Y5 to the D15B, will it make a difference?
or em i gonna need the ecu from the car i got it from?
engine source- the engine came form a 1998 honda civic 4 door
Honestly this is the 1st engine swap i ever did, and i also did it by myself. i dont really have alot of knowledge on the D15B, but i do know almost everything about the hx. if you have some info about this motor, plz let me know.
thanks, Duwa.
sorry about the lifelong story lol......... i just din't want to leave anything out.
--------------------------------------------------------------------------------
hey all, i've been having some issues with my 97 hx. first of all i just wanna add that my engine(d16y5) blew up(pistons). and i needed a new engine asap. so i was looking around and found a D15B. I do know about the hx having the vtech-E and wide band o2 sensor. so what i did before the installation, i swap the intake manifold exhaust manifold(with the cat and the two O2s) and the wire harness. everything else belong to the D15B like head, block and tranny.
THE PROBLEM!!!-(when the installation was done) I started the car up, the car started with a low idle. so I left it for a while and everything was well, so it was time for a test drive and while in 1st gear, the engine started to hassitate and lack of power till 2500 rpms, and pretty much that was the same result in all gears up to 4th because in 5th was mostly cruise. in every stop in a small incline, it was like mission impossible for the car to go unless i let the clutch go at 2500rpms or higher.
THE QUESTION- Do u think that if i change the head(reason-compression difference if any and Vtech difference) from my D16Y5 to the D15B, will it make a difference?
or em i gonna need the ecu from the car i got it from?
engine source- the engine came form a 1998 honda civic 4 door
Honestly this is the 1st engine swap i ever did, and i also did it by myself. i dont really have alot of knowledge on the D15B, but i do know almost everything about the hx. if you have some info about this motor, plz let me know.
thanks, Duwa.
sorry about the lifelong story lol......... i just din't want to leave anything out.
09-17-2009, 03:45 PM
#2
Honda-Tech Member
Re: civic hx problem with swap
Somebody knows how to make a good troubleshooting thread!! 
!!!
The motor is a D15B and it came from an EK 4 door?
How bad is the hessitation till 2500 RPM? I have the same problem (in all 3 motors), but its not as bad as you make it seem.
And yes, having the correct ECU will help. The D16Y5 ECU is one ****ed up ECU and I doubt it will run any other motor since its a VTEC-E ECU. You should have done a Y8 swap since it will be plug and play and you can find P2P 96-98 ECU's very easily.
!!!The motor is a D15B and it came from an EK 4 door?
How bad is the hessitation till 2500 RPM? I have the same problem (in all 3 motors), but its not as bad as you make it seem.
And yes, having the correct ECU will help. The D16Y5 ECU is one ****ed up ECU and I doubt it will run any other motor since its a VTEC-E ECU. You should have done a Y8 swap since it will be plug and play and you can find P2P 96-98 ECU's very easily.
09-17-2009, 11:15 PM
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Re: civic hx problem with swap
jaja lol thanks, i know it was long.
and yes, the D15b did came out of the ek 4 dr. and i had the same reaction. i guess it was also a swap.
anyways. yes i was thinking the same thing, getting that ecu.
but before i do that. im just gonna experiment and change the head for the old one since it has a diff. vtech system and see what happens. at this point the only thing that will be different is the compression.
did some research
D16Y5- 9.4:1
D15B- 9.2:1
is this right? if so, it shouldn't be much of a difference.
will post results after im finish. thanks
and yes, the D15b did came out of the ek 4 dr. and i had the same reaction. i guess it was also a swap.
anyways. yes i was thinking the same thing, getting that ecu.
but before i do that. im just gonna experiment and change the head for the old one since it has a diff. vtech system and see what happens. at this point the only thing that will be different is the compression.
did some research
D16Y5- 9.4:1
D15B- 9.2:1
is this right? if so, it shouldn't be much of a difference.
will post results after im finish. thanks
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