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Old 02-07-2006, 07:53 PM   #1 (permalink)
CRXSI
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Hi I just got a 1989 CRX and the guy has put a d15z1 motor in it. He said this motor is a sohc vtec motor but the ecu is the factory one. So my question is will the vtec work with a factory CRX computer or not? If not is it worth making it work and what would I have to do to make it work?
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Old 02-07-2006, 07:55 PM   #2 (permalink)
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Originally Posted by CRXSI
So my question is will the vtec work with a factory CRX computer or not? If not is it worth making it work and what would I have to do to make it work?
it can if you use a MSD rpm activated switch. but it's so much better to convert to OBD1 and run a p28
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Old 02-07-2006, 07:56 PM   #3 (permalink)
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your d15z1 motor is a vtec-e motor.

to make it run 100% correctly you'd have to convert to obd1 and use the civic vx ecu

id swap the motors if i was you.. makes things easier
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Old 02-07-2006, 11:28 PM   #4 (permalink)
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i got a vx ecu ill sell real cheap
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Old 02-07-2006, 11:28 PM   #5 (permalink)
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p06 i believe
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Old 02-07-2006, 11:31 PM   #6 (permalink)
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oh yeah by the way the z1 motor is trash. strong motor but just didnt do it for me. but i heard if you run a p28 or p08 the wtec-e's run a little better.
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Old 02-07-2006, 11:34 PM   #7 (permalink)
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if i were you id sell that motor swap in a jdm sohc zc or dohc zc
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Old 02-08-2006, 09:50 AM   #8 (permalink)
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Thanks for your help I'll probably drive it the way it is for now because it's the only daily driver I have and save up for an engine swap.
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Old 02-08-2006, 10:12 AM   #9 (permalink)
 
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^^I would definately do different engine swap if you are going for speed not MPG Save up for a Z6 or ZC.
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Old 02-08-2006, 10:21 AM   #10 (permalink)
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VX ecu is the p07...

uses a wideband o2 sensor stock... (5-wires)
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Old 02-08-2006, 11:29 AM   #11 (permalink)
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mine was a p06
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