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Location:
South Eastern Subs
Registered:
March 2004
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 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Tue, 27 July 2004 14:14
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Okies are Gen 2 and Gen 3 Injectors of the same impedence?
Whats invovled in putting Gen 3 Injectors on a Gen2. Do i need to change the resistor, Remove it? I though it would be straight swap being the same engine???
I need to know as i brought some hoping to get little bit bigger injectors witout major change.
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Location:
South Eastern Subs
Registered:
March 2004
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Tue, 27 July 2004 14:56
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Okej They both seem to be High impendence. I measured them with a multimeter and both Gen2 and Gen3 read 13.6 ohms.
Don't make much sence since it uses a ballast resistor which sets them to 7 ohms per injector.
Now unless i got jibbed and they are not gen 3 injectors. The physical diffrence beetween the two is the size of the brass nozzle. Gen2 being 23mm and Gen3 being 31mm.
These are the part numbers
One one side for both its the same: 223250-70080
The other side the diffrence is:
Gen2: 0D18
Gen3: 8B07
Has anyone got any Gen 3 injector part numbers:
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Location:
PNG
Registered:
June 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Tue, 27 July 2004 22:43
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I will check for u when I get home tonite.
Craig
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Location:
Melbourne
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Wed, 28 July 2004 07:54
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I can tell you for a fact that gen 3 injectors are high imp, and i also know that Gen 1 are low imp. So you can be fairly certain that you have Gen 3 injectors.
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Location:
PNG
Registered:
June 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Wed, 28 July 2004 08:31
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Gen 2 are definitely low impedance as they have a ballast resister, well on my car anyway, maybe Toyota mixed and matched again, I will check the number for you.
Craig
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Location:
South Eastern Subs
Registered:
March 2004
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Wed, 28 July 2004 12:00
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Okies i have found out that Gen2 are indeed low impedence. So what would be involved to fit the gen3 High impedence injectors.
Is it even worth it since i am raising the boost to 15psi i wanted to give a bit more fuel.
Why did toyota change the impedence on the gen3 motor??
DDeane the parth number would be great. Thanks
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Wed, 28 July 2004 14:23
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Knew I wasn't going insane 
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Location:
South Eastern Subs
Registered:
March 2004
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Wed, 28 July 2004 15:25
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Hehe far from it frank...still i need to know can i or can't i use these f#@en injectors and is it worth it????? 
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I supported Toymods
Location:
Sutho/Hills NSW
Registered:
September 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Thu, 29 July 2004 00:42
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you will probably find they wont plug into your loom
7mgte injectors are a great upgrade for a gen1
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Location:
Eskilstuna, Sweden
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Thu, 29 July 2004 03:12
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What size are 7mge or 7mgte injectors anyway, just out of interest.
Cheers
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I supported Toymods
Location:
Sutho/Hills NSW
Registered:
September 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Thu, 29 July 2004 06:39
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7mgte = 440cc
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Location:
PNG
Registered:
June 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Thu, 29 July 2004 08:44
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I think that the last thing you will need to worry about is there not being enough fuel if you raise the boost on a standard engine and computer. Toyota basically floods the thing once you start to appoach their max boost. Mine at 14psi is somewhere around 10.5, be surprise if yours is any different. In fact I have removed the raising rate off the regulator to reduce fuel. THIS WAS DONE ON A DYNO WITH A A/F METER ATTACHED AND I DONT RECOMMEND YOU DO IT UNLESS YOU CHECK IN THE SAME WAY. I have driven the car with a fuel pressure gauge in place and whatched the fuel pressure rise from 38 psi at no boost to some 50 odd psi as the boost get around 14 psi.
Craig
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Location:
newcastle nsw
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Thu, 29 July 2004 21:43
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I gotta agree with ddeane, everyone seems to be going crazy with bigger injecters on standard 1gs lately, and theres really no nead
although if anyones interested i do have a set of 7mgte injecters for sale $250 ill pay postage, a nice up grade for a 1g
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Location:
South Eastern Subs
Registered:
March 2004
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Thu, 29 July 2004 23:58
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So there is no need for the bigger injectors. I will use the Apexi SAFC to controll mixtures.. I just thought i could squize a bit more power out of it with the slightly bigger gen 3 injectors..
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 00:00
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Nope dude, the SAFC will make power by removing fuel. You'll reach the limit of the CT12's long before the injectors run out of duty cycle.
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Location:
South Eastern Subs
Registered:
March 2004
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 00:02
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Cool thats what i needed to know..Thanks.
Still don't get why the gen3 1G make more power then. Is it cause of the sligly diffrent turbos or ecu.
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Location:
Sydney
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 00:04
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straight up they run more boost, but then when you turn them both up to 15psi the gen 3 comes out on top. it has to with both the ecu and the turbo design being slightly different. any they are the only differeing things
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 00:05
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The turbos are slightly different, but the main difference would have to be the tuning in the ECU.
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Location:
South Eastern Subs
Registered:
March 2004
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 00:06
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Hey Luke it looks like i can't run those injectors i got from you???
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Location:
South Eastern Subs
Registered:
March 2004
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 00:07
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Yeah i read the Ecu is more aggresive....
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Location:
south east - melbourne
Registered:
March 2004
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 01:27
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SO HOW FDIFFERENT IS THE ECU ON THE GEN 3
also i suspect the piping for the turvos are too small and if they were made bigger more air can be passed through the turbo
also another thing is the intercooler piping they look nice and fat in the start then , its squuezed to buggery once its gotten down towards the coler , and squeezed again going out of the cooler , and fattens up again when it gets to the throttle body
will making the dialeter the same in the piping give any results , i pretty sure they would ,
any opinions ????
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Location:
Adelaide, SA
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 03:56
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I'm running 2" mandrel bent all the way for my intercooler pipes... the only place that air has a chance to expand is in the intercooler
Did 1st gen 1G-GTE's come as Air/Air at all? Or only Water/Air?
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Location:
Sydney
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 04:08
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same, 2" custom for me
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Location:
Melbourne
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 07:50
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Well in that case, its lucky i run single turbo and aftermarket management on my gen 1, i might be missing out on that extra power lol. Though the injector imp wasnt the only thing that changed. They run different TPS aswell, dunno know if that makes squat difference but i thought i would add it in.
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Location:
South Eastern Subs
Registered:
March 2004
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Fri, 30 July 2004 13:15
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The weird thing is i know my engine is a gen two due the ballast resistor being there but...i only have one plug on my TPS(like a gen 3) and my turbos say C1 and C2 on them..another weird thing i have yellow ecu plugs but 26 pin not the gen2 24 pin. Weird ..toyota is a bit mixed up i think..lol. oh yeah and it runs 10 pouns but with an3inch exaust....go figure
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Location:
Sydney
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Sat, 31 July 2004 10:24
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Yeah I've seen lots of weird things, even differing gen 3s. but all have had grey plugs. but different thermstat housings and ignitor locations etc.
when it comes down to it turn up the boost on a dyno and watch the af ratios.
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Location:
Adelaide
Registered:
May 2002
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Wed, 27 October 2004 05:14
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simple question, can I wire up a gen3 ecu and plugs to a gen 2 loom and it'll all work ok ?!
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Location:
South Eastern Subs
Registered:
March 2004
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Re: 1G Gen 2 & Gen 3 Injectors: Same Impedence???
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Wed, 27 October 2004 06:08
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Yeah i was curious about this too cause i have 26 pins and it would fit a gen 3 plug...But from what i know i don't think you can cause gen 3 have high impedince injectors and gen 2 low impedence injectors...anyways other people would know more
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