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rrathjen · 10-12-2009, 04:14 AM

I am considering doing a swap in my 89 honda crx, I am going to buy the original ECU for it the p2j I am unsure if I should buy an obd2 wiring harness or use the original obd0 wiring to wire up the p2j ecm. Should i convert the whole engine bay to obd2, I am wanting to use the engine for its intended purpose for fuel savings not power.

RoughKnight · 10-12-2009, 10:02 AM

the 3stage d15b is obd2, so yes you should start your 'conversion.'

78civic · 10-27-2009, 05:21 PM

Gas savings?? You should just rebuild another d15 or the one that's in your car. Heck, i'm not easy with mine and I still get 32+ mpg.
I TRIED to be easy and got 38+..

Long ago, I rebuilt a d15 in a 89crx and got close to 36 with a engine that wasn't broken in yet. STOCK w/Port and polish and was at 82hp @the wheels.
It was SOO quiet that I'd have to rev it at a light to see if it was still running. BUT, I sold it.

E

RoughKnight · 10-28-2009, 01:06 AM

^... I'll stop you before you go on...

The d15b is notorious for its 'lean burn mode,' which can get up to 40-60mpg by crusing at about 60kph. So yea, d15 is nice, having the d15b with vtec-e makes it all fun at top and and gas savings down low.

91civisedaner · 10-29-2009, 10:16 PM

why not get a D15z1??? it's a vx motor vtec-e,the vxs got like 50+ mpg its a obd1

PuddleSkipper · 10-30-2009, 12:36 AM

Why not stick a 1992 - 1995 Civic VX motor in it and get 60 mpg? It's a D15Z1

double0Si · 10-30-2009, 12:46 AM

Edit to mods: Thank you.

RoughKnight · 10-30-2009, 01:34 AM

The d15b combines the best of both worlds. Vtec-e for gas savings, and normal vtec with a redline at 7k for top end power. So if he wants to push the pedal he can. I love mine. Wish I had the lean burn mode

Ethan · 10-30-2009, 08:17 AM

I just know im never going back to d15... fuck that shit puto!

RoughKnight · 10-30-2009, 10:24 AM

Lol ditto, can't wait till I get a decent job...

10-12-2009, 04:14 AM	#1
rrathjen Greenhorn Join Date: Oct 2009 Posts: 1 iTrader: 0 / 0% Rep Power: 0	D15B 3 stage VTEC swap I am considering doing a swap in my 89 honda crx, I am going to buy the original ECU for it the p2j I am unsure if I should buy an obd2 wiring harness or use the original obd0 wiring to wire up the p2j ecm. Should i convert the whole engine bay to obd2, I am wanting to use the engine for its intended purpose for fuel savings not power.

10-12-2009, 10:02 AM	#2
RoughKnight Christmas Car Join Date: Aug 2009 Location: Ottawa, Ont Age: 21 Posts: 350 iTrader: 0 / 0% Ride: 93 4dr D15B, Greddy Short Ram, 4-2-1 Header, 2.5" Exhaust. Rep Power: 8	the 3stage d15b is obd2, so yes you should start your 'conversion.' __________________ Please direct your questions in the following format. 1) Did I search it on Google? 2) Did I use the search function in the TOP RIGHT AREA of this page? 3) Refer to Step 1 and 2. If that doesn't work, then feel free to post.

10-27-2009, 05:21 PM	#3
78civic Junior Member Join Date: Oct 2004 Age: 46 Posts: 291 iTrader: 0 / 0% Rep Power: 14	Gas savings?? You should just rebuild another d15 or the one that's in your car. Heck, i'm not easy with mine and I still get 32+ mpg. I TRIED to be easy and got 38+.. Long ago, I rebuilt a d15 in a 89crx and got close to 36 with a engine that wasn't broken in yet. STOCK w/Port and polish and was at 82hp @the wheels. It was SOO quiet that I'd have to rev it at a light to see if it was still running. BUT, I sold it. E __________________ "If you can read, thank a teacher" "If you can read it in English, thank a VET"

10-28-2009, 01:06 AM	#4
RoughKnight Christmas Car Join Date: Aug 2009 Location: Ottawa, Ont Age: 21 Posts: 350 iTrader: 0 / 0% Ride: 93 4dr D15B, Greddy Short Ram, 4-2-1 Header, 2.5" Exhaust. Rep Power: 8	^... I'll stop you before you go on... The d15b is notorious for its 'lean burn mode,' which can get up to 40-60mpg by crusing at about 60kph. So yea, d15 is nice, having the d15b with vtec-e makes it all fun at top and and gas savings down low. __________________ Please direct your questions in the following format. 1) Did I search it on Google? 2) Did I use the search function in the TOP RIGHT AREA of this page? 3) Refer to Step 1 and 2. If that doesn't work, then feel free to post.

10-30-2009, 01:34 AM	#8
RoughKnight Christmas Car Join Date: Aug 2009 Location: Ottawa, Ont Age: 21 Posts: 350 iTrader: 0 / 0% Ride: 93 4dr D15B, Greddy Short Ram, 4-2-1 Header, 2.5" Exhaust. Rep Power: 8	The d15b combines the best of both worlds. Vtec-e for gas savings, and normal vtec with a redline at 7k for top end power. So if he wants to push the pedal he can. I love mine. Wish I had the lean burn mode __________________ Please direct your questions in the following format. 1) Did I search it on Google? 2) Did I use the search function in the TOP RIGHT AREA of this page? 3) Refer to Step 1 and 2. If that doesn't work, then feel free to post.


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10-29-2009, 10:16 PM	#5
91civisedaner Senior Citizen Join Date: Jan 2009 Location: oregon city or Age: 30 Posts: 116 iTrader: 0 / 0% Ride: 1991 civic sedan 1972 datsun 620 Rep Power: 3	why not get a D15z1??? it's a vx motor vtec-e,the vxs got like 50+ mpg its a obd1

10-30-2009, 12:36 AM	#6
PuddleSkipper Junior Member Join Date: Oct 2009 Age: 31 Posts: 6 iTrader: 0 / 0% Blog Entries: 1 Rep Power: 0	Why not stick a 1992 - 1995 Civic VX motor in it and get 60 mpg? It's a D15Z1

10-30-2009, 08:17 AM	#9
Ethan B ( . )( . )B's Join Date: Jun 2008 Location: Ellenville, NY Age: 20 Posts: 1,561 iTrader: 0 / 0% Rep Power: 73	I just know im never going back to d15... fuck that shit puto! __________________ My 91 Civic HB Project add me on ps3.... my account is "SOHCivic"

10-30-2009, 10:24 AM	#10
RoughKnight Christmas Car Join Date: Aug 2009 Location: Ottawa, Ont Age: 21 Posts: 350 iTrader: 0 / 0% Ride: 93 4dr D15B, Greddy Short Ram, 4-2-1 Header, 2.5" Exhaust. Rep Power: 8	Lol ditto, can't wait till I get a decent job... __________________ Please direct your questions in the following format. 1) Did I search it on Google? 2) Did I use the search function in the TOP RIGHT AREA of this page? 3) Refer to Step 1 and 2. If that doesn't work, then feel free to post.

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