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xxstuntin4life · 11-03-2009, 02:34 PM

Well i just finished a MPFI swap on a 89 dx crx.. i put in a jdm d15b vtec in it for a friend and i still have it running obdo (vtec isnt hooked up) but i wired the dizzy to obd1 because the motor came with a obd1 dizzy.. i thought maybe i switched up pin b10 and b12 at the ecu so i switch thos around and it seems like it runs worse now so i put them back to the way it was before..

i know these sensors are all in the dizzy but do u think the dizzy might of tookin a shit?

code-

4- crank angle
8-TDC
9- CYP

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4drEF · 11-03-2009, 02:41 PM

You can't run the OBD1 dizzy with an OBD0 ECU.

xxstuntin4life · 11-03-2009, 02:55 PM

Quote:

Originally Posted by 4drEF

You can't run the OBD1 dizzy with an OBD0 ECU.

y not? ive heard of people doing it before

4drEF · 11-03-2009, 03:26 PM

Quote:

Originally Posted by xxstuntin4life

y not? ive heard of people doing it before

Oh really?
And how many of them ran correctly?

The reluctor ring inside the distributor has a different number of teeth.
If you run the OBD-1 on your OBD-0 ECU then you get the wrong pulses to the ECU... and it will never run right.

N3va3vaSatisfi3d · 11-03-2009, 06:04 PM

Quote:

Originally Posted by 4drEF

Oh really?
And how many of them ran correctly?

The reluctor ring inside the distributor has a different number of teeth.
If you run the OBD-1 on your OBD-0 ECU then you get the wrong pulses to the ECU... and it will never run right.

Exactly...

xxstuntin4life · 11-03-2009, 09:46 PM

Quote:

Originally Posted by 4drEF

Oh really?
And how many of them ran correctly?

The reluctor ring inside the distributor has a different number of teeth.
If you run the OBD-1 on your OBD-0 ECU then you get the wrong pulses to the ECU... and it will never run right.

i called rywire and u are right my friend.. thanks.. it runs but just throws thos codes.. and when i mean runs, it barely runs lol

xxstuntin4life · 11-03-2009, 09:47 PM

wat about running obd1 injectors just spliced in?

N3va3vaSatisfi3d · 11-04-2009, 01:56 PM

Quote:

Originally Posted by xxstuntin4life

wat about running obd1 injectors just spliced in?

Are you running a resistor box or no?

xxstuntin4life · 11-04-2009, 02:10 PM

na.. i took the 5 wires that lead to the resistor box and put them all together

N3va3vaSatisfi3d · 11-04-2009, 02:14 PM

Then yes, you can use OBD-1 injectors.

munchies91crx · 11-04-2009, 02:24 PM

you should really just get you a obd0 to obd1 jumper. for the dizzy, and ecu. and bam! problem solved. wire in your vtec. and bam jdm d15b vtec running like a champ.

xxstuntin4life · 11-05-2009, 01:13 AM

Quote:

Originally Posted by munchies91crx

you should really just get you a obd0 to obd1 jumper. for the dizzy, and ecu. and bam! problem solved. wire in your vtec. and bam jdm d15b vtec running like a champ.

i would if it was my car trust me.. if u saw my cars u would see there crazy clean.. but this is my friends whip and he is on a big budget so hes tryin to cheap it out.. :/

chandler · 11-05-2009, 04:34 AM

half a**ed equals half fast, I just had to fix a harness for a guy that has all of the wires twisted together and heat shrinked, took me six hours to un cluster that charlie foxtrot.

11-03-2009, 02:41 PM	#2
4drEF Member Join Date: May 2002 Location: Granada Hills, Ca, USA Posts: 4,753	Re: after MPFI swap.. codes 4,8,9 You can't run the OBD1 dizzy with an OBD0 ECU. __________________ . o 0 0_o 0 o .

11-03-2009, 09:47 PM	#7
xxstuntin4life Junior Member Join Date: Nov 2008 Location: rosamond/so cal Posts: 483	Re: after MPFI swap.. codes 4,8,9 wat about running obd1 injectors just spliced in? __________________ -93 purple dx coupe b16a3, 88 crx si built/boosted dohc zc, 07 r6 with bolt ons ~~~~ myspace.com/iheartboost06 add it! JUMP OFF A BRIDGE JUAN! NOW!!

11-04-2009, 02:10 PM	#9
xxstuntin4life Junior Member Join Date: Nov 2008 Location: rosamond/so cal Posts: 483	Re: after MPFI swap.. codes 4,8,9 na.. i took the 5 wires that lead to the resistor box and put them all together __________________ -93 purple dx coupe b16a3, 88 crx si built/boosted dohc zc, 07 r6 with bolt ons ~~~~ myspace.com/iheartboost06 add it! JUMP OFF A BRIDGE JUAN! NOW!!

11-04-2009, 02:24 PM	#11
munchies91crx Junior Member Join Date: Aug 2009 Posts: 80	Re: after MPFI swap.. codes 4,8,9 you should really just get you a obd0 to obd1 jumper. for the dizzy, and ecu. and bam! problem solved. wire in your vtec. and bam jdm d15b vtec running like a champ.

11-05-2009, 04:34 AM	#13
chandler Junior Member Join Date: Jan 2005 Location: charlotte, NC, usa Posts: 161	Re: after MPFI swap.. codes 4,8,9 half a**ed equals half fast, I just had to fix a harness for a guy that has all of the wires twisted together and heat shrinked, took me six hours to un cluster that charlie foxtrot.

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