Microtech injectors not working while cranking
04-21-05, 01:26 PM
#1
injectors not working while cranking
Hey
Well in test mode, the injectors fire along w/ coils etc. However when in normal mode, they dont fire the injectors but the coils work still. Also i notice that when in test mode it shows the timing/rpm/injector pulse , yet when i crank normally none of this works.
I've been reading through a bunch of old threads but still nothing
Well in test mode, the injectors fire along w/ coils etc. However when in normal mode, they dont fire the injectors but the coils work still. Also i notice that when in test mode it shows the timing/rpm/injector pulse , yet when i crank normally none of this works.
I've been reading through a bunch of old threads but still nothing
04-21-05, 07:26 PM
#3
All the wiring seems good. However i have discovered that it seems my acutal injectors are not working. I tested the injector wires w/ one of those node testers (you plug it in where the injector should be and it will flash whenever the injector was supposed to be fired)
Either i dont have enough fuel pressure to open the injectors, OR they are stuck closed(which is quite possible as they were cleaned after been clogged but never used, and i was told if i let them sit they may stick again)
I'll know for sure tommmrow once i get them cleaned again.
Either i dont have enough fuel pressure to open the injectors, OR they are stuck closed(which is quite possible as they were cleaned after been clogged but never used, and i was told if i let them sit they may stick again)
I'll know for sure tommmrow once i get them cleaned again.
04-28-05, 12:16 PM
#4
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i have the same problem
the engine cranks but no injector impulse
at how much do i need to have the fuel pressure at????
do the injectors axually need a specific pressure to open???
i have it set around 35-38 psi???
I'am using 4 1600cc injectors
the engine cranks but no injector impulse
at how much do i need to have the fuel pressure at????
do the injectors axually need a specific pressure to open???
i have it set around 35-38 psi???
I'am using 4 1600cc injectors
05-26-05, 09:26 AM
#5
I F****D a mermaiiiid
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you shouldn't need ANY fuel pressure to open or close the injectors.
i usually test suspect injectors with a 9volt battery. i give it a couple of little taps on the terminals and listen for clicking and watch the pintle move.
Ray
i usually test suspect injectors with a 9volt battery. i give it a couple of little taps on the terminals and listen for clicking and watch the pintle move.
Ray
05-26-05, 11:16 AM
#6
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is your power source for the injectors the same as your coils, or two diff power sources?
Ive seen some people use a power source that provides power when ign is "on" but not when cranking. Just an idea.
Ive seen some people use a power source that provides power when ign is "on" but not when cranking. Just an idea.
06-16-05, 08:50 PM
#7
Acutally what ended up happening was a combination of things.... My injectors were firing, BUT they were clogged due to sitting for a long period, so once they were cleaned, no issues. As for my spark, The problem was that my switched 12V would turn off during cranking so i had to take it from somewhere else.
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