KevinEF7

Hey guys, I have a very broad question. I have a Rhd EF7, comes factory with an obdo dohc zc engine. I will be installing a forged d16a6 and going turbo, and can only really find tuning available for crome/neptune etc which all require obd1

Since I need to buy a new distributor anyways, would it be worthwhile to switch to obd1??

I am very confused on what I need to convert. Is it simply buy a conversion jumper harness that plugs into my stock ecu harness and put the wires in the right places for an obd1 ecu to plug in at the end, and an obd1 distributor. And Im done?

I see talk of extra wires for vtec, and 02 sensors, but I wont have either. And rywire also sells distributor conversion harnesses.

I am really not quite sure what route I should take.

Or I could stay Obd0 and stick with the turboedit program which kind of seems to be obsolete

Please advice me on how you guys swapped to obd1 and any extras that need to be done

Thanks

BIGef

for obd1 all your needing the is the jumper harness.
As for the extra wires such as vtec,o2, etc. is already there with the jumper harness just
need to wire em up to the bay.
And yes get the obd0-obd1 dizzy harness.
get 4 wire o2 sensor
obd1 ecu
obd1 dizzy

and your good

1siccrx

i know rywire sells the whole wire kit shouldnt cost more than 200 i believe then you just need obd1 dizzy, ecu, and o2 harness

4drEF

Get an OBD2 dizzy of the D16Y8.
The D16Z6 won't fit as it has a different bolt pattern.
The Y8 dizzy will work perfectly fine with the OBD1 ECU and it will bolt right up to your A6 head.
You just need to convert the plugs or get a conversion harness like this one
http://www.rywire.com/catalog/obd1-t...pter-p-42.html

KevinEF7

An OBD2 dizzy?

Im confused. I basically want to convert my d16a6 to OBD1 to run boost. Ive never seen an obd1 distributor so I dont know about the plug differences.

What is the need for an 02 harness that I wont be running? Or do guys for some reason run an 02 sensor on boosted obd1 setups?

4drEF

Crud. nevermind.
Sorry... used to seeing people doing the "mini-me" and OBD1.
Disregard my previous post.

A6 does not have vtec =/ so you don't need a vtec distributor.
You need a non-vtec distributor which is pretty much everything except the Z6 distributor.
Z6 you can't use because it's vtec (different guts inside) and also the bolt pattern is different than the A6 (won't bolt right up to your head).

KevinEF7

thats alright, Id love any info anyone has on my above questions

KevinEF7

Why is this thread moved from Crx forum to FI?

grumblemarc

iTrader: (4)

Shouldn't have mentioned it if it had nothing to do with the question at hand.

KevinEF7

Just trying to say why I didnt think I needed any of the 02 sensor conversion part, trying to give good details etc

Swap'DShuttle

Well you're still going to need to wire in a wideband O2 so you'll have one of some sort. You'll also need to swap out your old injector clips and use obd-1 style ones or what fits the injectors you need depending on your build. No more resistor box either.

wantboost

iTrader: (2)

You can run turboedit on an obd0 app and skip all the headache.

KevinEF7

I have used turboedit in the past, I just heard it was obsolete and tuning with it may be difficult.

I do already have a chipped obd0 ecu, but no matter what I have to buy a new dizzy since I dont even own a good one. So thats the only reason I was contemplating switching to obd1

Not quite sure what to do here

TheShodan

iTrader: (14)

Damn.. turboedit. Very, VERY few people, if at all will mess with that system. So, yes, switching to OBD1 would be best.

wantboost

iTrader: (2)

I still remember when it was new

rich7777

Its a nightmare to use. I find myself going around in circles with it.

KevinEF7

Ya Im not quite sure what to do

Is an obd1 swap really that hard and would it add complication to my build?

Or is it simply buying an ecu jumper harness, obd1 ecu, obd1 distributor conversion harness, and obd1 dizzy?

Or is there more involved with wiring?

wantboost

iTrader: (2)

http://www.boomslang.us/obd0-to-obd1.php

That's the best place to get harnesses. And iirc it comes with the dizzy patch harness.

KevinEF7

I sent them an email exactly what there kit comes with

Im curious why everyone is saying I need the 02 sensor and wiring though, do I need an 02 sensor when going boost on obd1?

KevinEF7

The boomslang harness doesnt come with a distributor wiring harness, they want you to do alot of wiring mods and pin and depin some connectors

"Our harness is a jumper with an 8-wire sub-harness.
The distributor wiring changes are detailed in the instructions that come with our harness"

Thats what they said to me, I read there online manual and it seems a little above my head so I may try and go with a jumper harness that comes with a seperate dizzy harness.

Im still unsure if I need to buy and wire in an 02 sensor for obd1 is Im going to turbo

KevinEF7

anybody

wantboost

iTrader: (2)

Unless you have a wideband... yes.

Obd1 uses a different o2 sensor

KevinEF7

Yes Im going to have a wideband for tuning, I suppose you keep it in/attached to the downpipe at all times to monitor??

I just didnt get why you needed to buy and wire in an 02 sensor when boosting, didnt think they were used

wantboost

iTrader: (2)

the wideband should have a 0-5v out to use for tuning/logging purposes.
you need to use it at all times as its the first indicator that you might have an issue...


all motors use o2 sensors, how else do you think the ecu knows how to adjust fueling./timing?

KevinEF7

Yes yes I understand why factory cars have 02's. I just dont get why it keeps getting mentionned to be wired in every 0bd1 conversion I find searching

Theres no problem not buyone an 02 sensor, or running any of its associated wiring when going boost with a standalone chipped ecu correct?? Or is there some benfit from having both?? wideband and 02 sensor