Welcome to the North American Subaru Impreza Owners Club Thursday March 28, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Subaru Conversions

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 02-09-2006, 03:41 PM   #1
spoonfedb18a1
Scooby Specialist
 
Member#: 51273
Join Date: Dec 2003
Chapter/Region: South East
Location: Spartanburg SC
Vehicle:
1998 EJ20G RS 345whp
black

Default v1 wrx swap problems

did anyone have any problems occur after doing this swap?

i have a 1998 2.5rs coupe and i have put the v1 wrx swap out of a clip i purchased from RIMSANDTHINGS.COM

and i have the most unusual wiring problem.
(something is telling my ECU not to send out a signal to injector #3)

gets a power signal but no Ground signal...?!?!?!?

did any1 else have any problems....?

thanks,
Andrew
* Registered users of the site do not see these ads.
spoonfedb18a1 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 02-09-2006, 03:43 PM   #2
Natoe
Scooby Specialist
 
Member#: 90353
Join Date: Jul 2005
Chapter/Region: NWIC
Location: Corvallis OR
Vehicle:
Sold '95 22T Impreza
'99 EJ205 L, AE86 GVR4

Default

what do you mean? you cant just ground it?
Natoe is offline   Reply With Quote
Old 02-09-2006, 03:47 PM   #3
spoonfedb18a1
Scooby Specialist
 
Member#: 51273
Join Date: Dec 2003
Chapter/Region: South East
Location: Spartanburg SC
Vehicle:
1998 EJ20G RS 345whp
black

Default

nope.....tried and around 6 oclock today we have a subaru swap mech comming to try and figure it out.

the ecu isnt sending out a pulsating ground to the injector, but if we put it in another car with same 95 wrx swap the ecu works fine...signal and all ?!?!?! but just not in mine


it is like something is telling the ecu not to send it out, but only in my car..
i think we may have left off a ground sumwhere in the harness or something.
spoonfedb18a1 is offline   Reply With Quote
Old 02-09-2006, 03:58 PM   #4
Natoe
Scooby Specialist
 
Member#: 90353
Join Date: Jul 2005
Chapter/Region: NWIC
Location: Corvallis OR
Vehicle:
Sold '95 22T Impreza
'99 EJ205 L, AE86 GVR4

Default

hmm whered you get a hold of a subaru swap tech?
i dont know much, only things id know to check are all the ignition control things, individual injector wiring, can you check resistance on its ground to see if its fully grounding?
Natoe is offline   Reply With Quote
Old 02-09-2006, 04:03 PM   #5
spoonfedb18a1
Scooby Specialist
 
Member#: 51273
Join Date: Dec 2003
Chapter/Region: South East
Location: Spartanburg SC
Vehicle:
1998 EJ20G RS 345whp
black

Default

we have checked the all individual injector wiring and checked the resistance on each ground and injector 3 isnt grounding at all, we have ran a ground off of it to eliminate the possibilities of it being a nic or cut in the wire sumwhere but still that didnt do it.

the guy coming has done a couple subaru swaps and he seems to know alot about the wiring and mechanical stuff and he himeself drives a 1995 l brighton with a 95 wrx swap.
he isnt really a certified tech but i think he knows what he is doin......well at least more than me
spoonfedb18a1 is offline   Reply With Quote
Old 02-09-2006, 04:05 PM   #6
scobaru
Scooby Guru
 
Member#: 31345
Join Date: Dec 2002
Chapter/Region: MWSOC
Location: Wisconsin
Vehicle:
05 LGT, GC8, NA
blue, white, blue

Default

I'm pretty sure the ecu grounds the injector I could be wrong. but from what I remember the ecu grounds the injector and will always have power to the injector...so there possibly a problem in the circuit not the ecu. are you checking with a node light? or a mulitmeter you can check restistance between the ecu connector and the stright injector if you do get resisitance it could be high if not it could be the injector
scobaru is offline   Reply With Quote
Old 02-09-2006, 04:41 PM   #7
Natoe
Scooby Specialist
 
Member#: 90353
Join Date: Jul 2005
Chapter/Region: NWIC
Location: Corvallis OR
Vehicle:
Sold '95 22T Impreza
'99 EJ205 L, AE86 GVR4

Default

maybe the injector itself is ff'ed? and the ground inside it is damaged?
Natoe is offline   Reply With Quote
Old 02-09-2006, 06:15 PM   #8
spoonfedb18a1
Scooby Specialist
 
Member#: 51273
Join Date: Dec 2003
Chapter/Region: South East
Location: Spartanburg SC
Vehicle:
1998 EJ20G RS 345whp
black

Default

we are in the process of working on it right now, but i will be on in a lil while and give u guys the heads up on what is going on,
thanks for all the help i got,
Andrew
spoonfedb18a1 is offline   Reply With Quote
Old 02-09-2006, 07:06 PM   #9
XENONSVX
Scooby Newbie
 
Member#: 41719
Join Date: Aug 2003
Chapter/Region: MWSOC
Location: LANSING, MI
Vehicle:
XT, SVX, JUSTY &
GF8 STI V4 RA

Default

dur, if your not getting a drop to ground & you've verified your splicing is all correct your injector driver in the ecu is dead

aka

time for new ecu
XENONSVX is offline   Reply With Quote
Old 02-09-2006, 07:14 PM   #10
Hondaslayer
Scooby Guru
 
Member#: 4562
Join Date: Feb 2001
Chapter/Region: NWIC
Location: Auburn, WA
Vehicle:
2014 Electric Datsun
2005 Adventure van

Default

Have you tried to swap injectors around to another cylinder and see if it works there (move #3 to #2 and vice-versa).
Hondaslayer is offline   Reply With Quote
Old 02-09-2006, 08:39 PM   #11
spoonfedb18a1
Scooby Specialist
 
Member#: 51273
Join Date: Dec 2003
Chapter/Region: South East
Location: Spartanburg SC
Vehicle:
1998 EJ20G RS 345whp
black

Default

o.k
the ECU works in another car perfect! another car with the 95 wrx swap....so therefor the ecu is fine.

we have tried swapping injector and if we put the bad injector on a cylinder it doesnt fire(i am talking about swapping plugs around) but if we put a good plug on the spot where the bad injector was it will fire the cylinder.


is there any kind of sensor in the car that will keep an injector from firing...?

also if anyone has any suggestions on what to do, i would appreciate it.
thanks,
Andrew

also i havent had the car moving in 8ish months........all but this one injector are fine
spoonfedb18a1 is offline   Reply With Quote
Old 02-09-2006, 10:12 PM   #12
XENONSVX
Scooby Newbie
 
Member#: 41719
Join Date: Aug 2003
Chapter/Region: MWSOC
Location: LANSING, MI
Vehicle:
XT, SVX, JUSTY &
GF8 STI V4 RA

Default

try running direct 12V to the bad injector...ground out one side and hook the other to your battery. see if it clicks, do that a few time. On random occasions the injector can freeze and the extra power will cause it to unfreeze. you'll be able to hear and feel it click open and closed.

Another thing, try running a noid light on the injector harness, see if it flashes, if not run an ohm meter from the injector harness to the injector pin on your ecu, if you show nothing you've got a bad wire in there.
XENONSVX is offline   Reply With Quote
Old 02-10-2006, 04:25 PM   #13
rob
n00b Moderator
Moderator
 
Member#: 811
Join Date: Jan 2000
Location: WA
Vehicle:
2000 RS-Ej20G
It tastes like burning

Default

What happens when you try the 95 ECU on your car?

Is it intermittent or constant? In other words if you unplug the offending injector while it's running, does it run worse or the same?

How do did you verify that the injector is not getting the ground pulse?

-Rob
rob is offline   Reply With Quote
Old 02-10-2006, 04:55 PM   #14
subbyspeed
Scooby Specialist
 
Member#: 16274
Join Date: Mar 2002
Chapter/Region: MWSOC
Location: Columbus,OH
Vehicle:
2001 GM6 2.0L vf30
e30 black/rust

Default

if you have the wiring diagrams.. You can trace the injector wires from the ecu to main engine harness connector. A simple continuity test will tell you if that section is ok. Then do the same from that spot on the engine harness connector side to the injector your having the problem with. If you have continuity to it, then the wire is good.

This is how i found my problem when i first got done with my swap. Turns out during the wiring, i mixed 2 wires that controlled the #3 and #4 injectors. Swapped those 2 wires back to where they should have been, And bingo.

Just check from ecu to engine side of the bulkhead harness (where the engine harness plugs in) and from the engine harness to the injector. That'll lead you somewhere. Because this sounds like a wiring problem.. Not a component.. you proved that when you were swapping the injector connectors.
subbyspeed is offline   Reply With Quote
Old 02-11-2006, 03:03 PM   #15
Hondaslayer
Scooby Guru
 
Member#: 4562
Join Date: Feb 2001
Chapter/Region: NWIC
Location: Auburn, WA
Vehicle:
2014 Electric Datsun
2005 Adventure van

Default

Does that car have a coilpack or individual coils on plugs?

Try swapping coils with your buddy, or move the coilpacks around.
Hondaslayer is offline   Reply With Quote
Old 02-11-2006, 05:13 PM   #16
spoonfedb18a1
Scooby Specialist
 
Member#: 51273
Join Date: Dec 2003
Chapter/Region: South East
Location: Spartanburg SC
Vehicle:
1998 EJ20G RS 345whp
black

Default

we purchased new coil on plugs..(the individual ones right.) from supermoose when we got the swap in, and we thought that it was the problem, but it isnt...lol
spoonfedb18a1 is offline   Reply With Quote
Old 02-11-2006, 08:29 PM   #17
Hondaslayer
Scooby Guru
 
Member#: 4562
Join Date: Feb 2001
Chapter/Region: NWIC
Location: Auburn, WA
Vehicle:
2014 Electric Datsun
2005 Adventure van

Default

Timing belt is on correctly?

Did the engine have any broken timing covers on it when you bought it?
Hondaslayer is offline   Reply With Quote
Old 02-12-2006, 02:23 AM   #18
spoonfedb18a1
Scooby Specialist
 
Member#: 51273
Join Date: Dec 2003
Chapter/Region: South East
Location: Spartanburg SC
Vehicle:
1998 EJ20G RS 345whp
black

Default

the clip was in a wreck and the timing belt is new now and it was off by about 3 teeth.
but nothing broke.
spoonfedb18a1 is offline   Reply With Quote
Old 02-12-2006, 11:43 AM   #19
Hondaslayer
Scooby Guru
 
Member#: 4562
Join Date: Feb 2001
Chapter/Region: NWIC
Location: Auburn, WA
Vehicle:
2014 Electric Datsun
2005 Adventure van

Default

Quote:
Originally Posted by spoonfedb18a1
the clip was in a wreck and the timing belt is new now and it was off by about 3 teeth.
but nothing broke.

Off by three teeth when you got the engine?

If so you probably have some bent valves.
Hondaslayer is offline   Reply With Quote
Old 02-12-2006, 02:28 PM   #20
WashmyScooby
Scooby Newbie
 
Member#: 83820
Join Date: Mar 2005
Default

Curious.. I can't think of anything these guys haven't thought of... if you have swapped the injector to another cylinder and it fires, then it's the wiring... Try grabbing an injector out of that other car that has a swap and put it in your car and see if that fixes it?

Last edited by WashmyScooby; 02-12-2006 at 02:35 PM.
WashmyScooby is offline   Reply With Quote
Old 02-12-2006, 03:49 PM   #21
spoonfedb18a1
Scooby Specialist
 
Member#: 51273
Join Date: Dec 2003
Chapter/Region: South East
Location: Spartanburg SC
Vehicle:
1998 EJ20G RS 345whp
black

Default

it has to be a wiring problem..............a ground.
spoonfedb18a1 is offline   Reply With Quote
Old 02-12-2006, 05:23 PM   #22
subbyspeed
Scooby Specialist
 
Member#: 16274
Join Date: Mar 2002
Chapter/Region: MWSOC
Location: Columbus,OH
Vehicle:
2001 GM6 2.0L vf30
e30 black/rust

Default

Does the ground for the injectors on that engine all come from 1 ground? Thats the way the newer wrx's are, only the power is seperate.
subbyspeed is offline   Reply With Quote
Old 02-12-2006, 08:04 PM   #23
Hondaslayer
Scooby Guru
 
Member#: 4562
Join Date: Feb 2001
Chapter/Region: NWIC
Location: Auburn, WA
Vehicle:
2014 Electric Datsun
2005 Adventure van

Default

Quote:
Originally Posted by WashmyScooby
Curious.. I can't think of anything these guys haven't thought of... if you have swapped the injector to another cylinder and it fires, then it's the wiring... Try grabbing an injector out of that other car that has a swap and put it in your car and see if that fixes it?

He already mentioned that he ran a direct ground to the injector and it still did not fire.
Hondaslayer is offline   Reply With Quote
Old 02-12-2006, 08:24 PM   #24
gc8gc8
*** Banned ***
 
Member#: 106986
Join Date: Feb 2006
Default

bad injector
gc8gc8 is offline   Reply With Quote
Old 02-12-2006, 11:36 PM   #25
spoonfedb18a1
Scooby Specialist
 
Member#: 51273
Join Date: Dec 2003
Chapter/Region: South East
Location: Spartanburg SC
Vehicle:
1998 EJ20G RS 345whp
black

Default

nope the injectors are all new.
spoonfedb18a1 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
1995 impreza L coupe AWD wrx swap problems HELP ddschwaner Subaru Conversions 5 11-09-2009 11:26 AM
2004 wrx AP v1 ,, possible boost problem stage 2? rwgottar AccessPort 5 08-15-2009 10:29 AM
wrx swap to rs "done"... tranny/clutch problem! please help. AzNStiImpreza Subaru Conversions 10 07-19-2005 02:10 PM
wrx swap starting problem gc8ej20 Subaru Conversions 9 06-16-2004 08:18 AM
Wierd problem with WRX swap? AKGC8 Normally Aspirated with bolt-on Forced Induction Powertrain 9 01-01-2003 05:31 PM

All times are GMT -4. The time now is 09:12 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.