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Registered:
May 2002
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Help injectors!!!
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Wed, 29 May 2002 12:10
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Guys I've searched high and low to find out what is the ohms of the yellow injectors from a late model 1GGTE motor but cant seem to locate the info. 
I want to upgrade to the 1jz injectors, the're high impedance 13.8 ohms and I need to make sure my injectors run the same or less ohms than that.
Please any info on how I can find out will be great. 
Cheers
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Registered:
May 2002
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Re: Help injectors!!!
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Wed, 29 May 2002 12:15
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Actually I think they would be the pale green injectors. It's a 1990 1GGTE.
Cheers
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Help injectors!!!
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Wed, 29 May 2002 12:20
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crazy idea:
pull the ecu plug off an injector, and measure the inj resistance with a mulitmeter
otherwise, go to repco, ask for the bosch stock replacment part number for that engine, then go to that pdf page i posted, and look it up.
otherwise, ill have a look for you.
cheers
ed
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Location:
North Sydney
Registered:
May 2002
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Re: Help injectors!!!
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Wed, 29 May 2002 12:28
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ed, if you read this
i wasnt too impressed with you not showing up the other day
if you ask someone to get u a part and they buy it for u it is courtesy to at least pick it up and give them the money, as i dont have your number i cant say this to you over the phone
so a call would be appreciated
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Help injectors!!!
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Wed, 29 May 2002 12:53
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michael...
huh? ask you to buy a part? i never asked you to buy anything for me. you said you had one already, or atleast, that was the inmpression you gave.
as for not comming around, it turns out i spent the afternoon with nishad trying to figure out what to do re: diffs g/boxes and wheels after his 'encounter' with you and your ma61 deals. in that light, i didnt feel altogether obliged to make the hike up to chatswood. i dont know what the situation is there, so am not going to cast dispersions, but that afetrnoon, i didnt feel a whole lot like going outta my way.
if youve gone and bought it specifically at my request, my apologies for misleading you. what exactly have you bought, and how much was it?
cheers
ed
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Registered:
May 2002
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Re: Help injectors!!!
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Wed, 29 May 2002 13:44
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Oh yeh of cause, a multi metermeter. So the ohms that appear on the multimeter will be what the ecu is running at.
I tried to download that pdf file but I couldn't view it. I'll give it another go.
Thanks for the help
PS I saw your post on the optimax fuel when you picked that dudes post to bits. Cracked me up "info past down from generation to generation of mechanics " 
Cheers
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Location:
Perth
Registered:
May 2002
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Location:
gold coast
Registered:
May 2002
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Re: Help injectors!!!
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Thu, 30 May 2002 10:55
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Japspec, I have a spare set of 1J injectors and fuel rail. Done 70000 Klms. If you need em.
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Location:
Sydney, OZ
Registered:
May 2002
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Re: Help injectors!!!
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Thu, 30 May 2002 11:24
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I think you'll find the 1J are a side feed injector which aren't interchangable with the 1G through flows, Rotary 12A will fit and are rated with high flow rates.
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Location:
gold coast
Registered:
May 2002
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Re: Help injectors!!!
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Thu, 30 May 2002 11:28
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True, johnny. 1J injectors are side feed.
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Registered:
May 2002
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Re: Help injectors!!!
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Thu, 30 May 2002 12:45
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Johny:
"They arent interchangable with the 1G through flows" do you mean the spray pattern flow or ohms flow.
Dosen't the term "side fed" just refer to where the fuel rail is mounted on the injector? If so then if I get the matching fuel rail it wont matter? Yeh/Neh?????
Thanks for the help guys.
I'm still to get an multimeter and test the ohms flow on the ecu plug. I hope its safe to just pull one of those ecu plugs off and stick a mltimeter in there?!
Kevz0r:
Thank, someone else gave me that link previously but it dosen't contain a 1GGTE anywhere.
Thanks again
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Location:
gold coast
Registered:
May 2002
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Re: Help injectors!!!
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Thu, 30 May 2002 12:55
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The question??
Are any 1GGTE injectors side feed?? There are more than a few versions of them are there not??
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Location:
Sydney, OZ
Registered:
May 2002
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Re: Help injectors!!!
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Thu, 30 May 2002 13:11
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Dosen't the term "side fed" just refer to where the fuel rail is mounted on the injector?
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Yes and No, the actually injector sits in the fuel rail. Fuel is feed from the side and straight through to the next injector, so in essence the injector acts as part of the fuel rail.
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If so then if I get the matching fuel rail it wont matter? Yeh/Neh?????
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Again Yes and No. If you get the fuel rail you may be able to cut and splice the rail to suit the injector spacing on the manifold. Then you have to some how mount it so it won't move and also seal the injectors where they fit the manifold. Also major prob. would be if the Toyota fuel rail is a cast item (most late models are), how would you splice them to the right spacing? To do all this will set you back as much as simple swapping your injector over to 12A items which flow some where close to 330cc/min (ie very high) Impedance could be the same too...I'm using the green injectors from a 1G which where flowed at 150cc... Are you running a standard ECU? Again a problem as the ECU will have to be remapped for any injector change.
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Location:
Sydney, OZ
Registered:
May 2002
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Re: Help injectors!!!
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Thu, 30 May 2002 13:16
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The question??
Are any 1GGTE injectors side feed?? There are more than a few versions of them are there not??
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I have seen any 1G's with side feed yet. Got to remember the 1G is and old style twin cam, the Newer 1G-FE found in the lovely IS200 looking are side feed from memory.
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Help injectors!!!
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Thu, 30 May 2002 13:25
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jonny:
"Rotary 12A will fit and are rated with high flow rates"
i think theyre hella high flow rates from memory arent they, like around 350cc up to 450 or something.
japspec:
"do you mean the spray pattern flow or ohms flow"
neither i think. i think he means whether the fuel enters the top of the injector body, or the side of the injector body. dont bother trying to make a side feed fuel rail...waaayyyyy too much hassle considering you should be able to get the right injector in the first place.
"I hope its safe to just pull one of those ecu plugs off and stick a mltimeter in there"
sure is. remember, youre reading the resistance through the injector, not the resistance in the ecu plug (dumb, but felt i should clarify)
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Location:
Sydney, OZ
Registered:
May 2002
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Re: Help injectors!!!
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Thu, 30 May 2002 13:31
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i think theyre hella high flow rates from memory arent they, like around 350cc up to 450 or something.
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Yeah, I know they were around that mark and had different flow rates depending on years, also had low impedances from memory too, but don't quote me, could be wrong.
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I supported Toymods
Location:
Adelaide
Registered:
May 2002
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Registered:
May 2002
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Re: Help injectors!!!
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Fri, 31 May 2002 09:53
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Thanks for all the replies guys. I feel so wanted!
I still haven't got to the multimeter at work yet. Can't get out of the office!!!!!!!!!!
I'm sure to get it done tomorrow.
Jonny:
You said I would need the stnd ecu to be re mapped due to the new injectors. I've seen many sites on the net about upgrading to larger injectors ie 2jz supra that didn't mention anything about having to change the ecu, they did say there was some tuning to be done as the car in question ran richer, but thats what I want to cope with higher boost.
Thanks for all the info.
Hopefuly I'll be able to help out some poor sod like me in the future.
FYI
I have a mate that thinks theres a shop in town with a dyno thats sitting doing nothing, not even hooked up. Might be able to get it hooked up and running! Free dyno runs!!!! Should be able to doco the upgrades on the supra from stock. Once I figure out what to upgrade!!!
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Location:
Sydney, OZ
Registered:
May 2002
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Re: Help injectors!!!
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Fri, 31 May 2002 10:16
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I've seen many sites on the net about upgrading to larger injectors ie 2jz supra that didn't mention anything about having to change the ecu, they did say there was some tuning to be done as the car in question ran richer, but thats what I want to cope with higher boost.
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Yeah, the car will run rich, hence run more boost, but I think to run more boost, you'll need the fuel cut limit removed. You'll also be not reaping the full potential of the engine too. without the proper maps ie it could lean out in some areas and over fuel in others, which isn't just a matter of adjusting the timing. Sure, more fuel = more boost = more power!! but how long have these engines lasted doing this mod? Many times have they had to change the spark plugs due to fouling or lean out? and how often? Best off doing the change, sticking an EGO up it's arse, putting it on a dyno and having a look at everthing. I know it's a low cost mod, but any mod not done properly, especially when adding more fuel to the equation, could cost you more in the long run.
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