Constant Power to Injectors 83 NA to 83 Turbo Swap
03-04-2012, 11:03 AM
#1
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Join Date: Dec 2007
Posts: 280
Constant Power to Injectors 83 NA to 83 Turbo Swap
he nightmare is becoming less of a nightmare, We're getting there slowly but surely.
So we have spark now, and the car will run if we dump a little fuel down the intake. So now it's a matter of fuel delivery.
The fuel pump IS working, but for some reason the injectors aren't firing properly. They are getting constant power, even when the key if off. This shouldn't be possible.
I checked the wires on the plug into the ecu. They are getting constant power also. I have no idea what to do.
This is a 83 NA to 83 Turbo swap. We have wiring schematics the size of the car LOL (pops' eyesight or lack of...) and we're getting power to the necessary wires (at least we think we are.)
the timing is correct and it is sparking.
these damn injectors are pissing me off :|
So we have spark now, and the car will run if we dump a little fuel down the intake. So now it's a matter of fuel delivery.
The fuel pump IS working, but for some reason the injectors aren't firing properly. They are getting constant power, even when the key if off. This shouldn't be possible.
I checked the wires on the plug into the ecu. They are getting constant power also. I have no idea what to do.
This is a 83 NA to 83 Turbo swap. We have wiring schematics the size of the car LOL (pops' eyesight or lack of...) and we're getting power to the necessary wires (at least we think we are.)
the timing is correct and it is sparking.
these damn injectors are pissing me off :|
03-04-2012, 08:05 PM
#4
Mr Z++ Wiki
Join Date: Sep 2009
Location: Victoria, BC
Posts: 2,195
Looking at the schematics both the NA and Turbo have constant power to the injectors on one side even with the ignition off. The ECU switches ground on to turn on the injectors otherwise they are just floating at +12V.
I just got a bunch of injectors for a friend. Half of them didn't fire. Threw them in the ultra sonic cleaner for five minutes and they all work find now. Are you sure your injectors are good and not gummed up?
I just got a bunch of injectors for a friend. Half of them didn't fire. Threw them in the ultra sonic cleaner for five minutes and they all work find now. Are you sure your injectors are good and not gummed up?
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