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Location:
Perth
Registered:
July 2002
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 22R -> 22RE
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Sat, 05 October 2002 11:22
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hi folks,
since taking my carby inlet manifold off again, I've changed my mind, and deciding to do the EFI now, ASAP, rather than clean/recon the carby.
I've started by pulling my EFI manifold apart, eliminating the EGR, fuel warmer, and the associated coolant line in the throttle body and outlet next to the thermostat. Its laid out nicely awaiting a jerry can of petrol so I can clean the sections and of the carbon/coolant scale.
Injector question: how to tell between +ve and -ve on the injector's plug terminals? (stock 22RE green nozzle injectors) I was going to run 12 volts to them while squirting with a syringe some degreaser/carby cleaner through.
If anyone who has done the 22R -> 22RE upgrade can comment on my plan please do:
1 - clean and reassemble EFI inlet manifold
2 - external EFI fuel pump, new EFI fuel hoses/clamps, new EFI fuel filter, new relay for ignition on power to fuel pump/injectors circuit via computer
3 - resolder the loom halves together (chopped at firewall by wreckers), test relay, plug terminals to injectors, plugs to computer, & wires to fuel pump... if OK connect computer/injectors/fuel pump.
4 - EFI distributor (are they the same as non-efi?)
Start her up?
I was hoping with no oxygen sensor or air flow meter connected it would just run from computer maps... so I can then go to my exhaust guy, get extractors taken off, nut with oxygen sensor thread welded to a runner. Then can connect O2 sensor.
I wanted to get a 7M-GE air flow meter (or is it a mass air flow meter?) for its larger diameter (as I have collected parts for turbo upgrade next year) since I dont have an AFM/MAF at all yet.
All opinions/advice greatly appreciated. I'm also posting to toyota-mods@cyberauto.com list so apologies if anyone is seeing double.
regards,
Dave.
--
1990 EP82 Starlet GT Turbo (for sale)
1985 RJ70 Landcruiser Bundera LX SWB
ToyotaTavern.topcities.com
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Location:
Hobart, Tas
Registered:
May 2002
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Re: 22R -> 22RE
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Sat, 05 October 2002 13:37
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Few points: Are you using an aftermarket EFI or a stock toyota one? And is it TCCS or analog EFI? If the "E" parts are off an '85 celi, it's analog and the ecu doesn't even HAVE an o2 sensor. My '85 celi headers have a blank instead of a tap for a sensor. If it is later Corona, I belive it is TCCS (digital) EFI.
Also, as far as I know there were never any hot-wire MAF 22REs, only flapper-door AFMs. You can upgrade an analog EFI 22RE AFM by using a 5mGE one, I believe, but not sure about the TCCS efi version. IF you can, at the least you might have to transplant the elctronics first. I'd get the thing happening with a stock AFM that hasn't been messed with first. And find out for sure what you can use - some AFMS might have the same plug on them, but are electronically totally different and incompatible.
I would be very suprised if ANY EFI car would run without it's AFM/MAF whatever plugged in an connected. How would the engine know how much air is going in and how much fuel to add????!!!!!!
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Location:
Perth
Registered:
July 2002
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Toymods Board Member
Location:
Sydney
Registered:
September 2002
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Re: 22R -> 22RE
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Mon, 07 October 2002 22:16
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A car will run without a AFM connected .. Just extremely rich, kinda like a default setting  .. It probably wont drive though.... 
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Location:
Brisbane
Registered:
May 2002
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Re: 22R -> 22RE
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Mon, 07 October 2002 22:48
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My Celica runs with no AFM plugged in, but it will only idle... as soon as you open the throttle, it dies straight away.
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Banned member
Location:
Brisbane
Registered:
May 2002
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Re: 22R -> 22RE
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Tue, 08 October 2002 09:47
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mine too norbie, just a big stutter and it dies
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