No fuel to rear rotor, need assistance
#1
No fuel to rear rotor, need assistance
I just swapped a s5 longblock into my 87 t2, i'm running s4 high impedence injectors with the wiring taking care of on the resistor block. the car starts and idles but its not getting fuel to the rear rotor but the front rotor is flooding any anything over 1/4 throttle kills the engine. all the fuel injectors have power, but for some reason the rear primary isn't firing. i've checked and rechecked all my grounding points and i've even replaced my ecu. i'm all out of ideas
i also forgot to mention that we cleaned and flow benched the injectors and they all flowed perfectly and i also put new pintle caps o rings and gromets on all 4 injectors
i also forgot to mention that we cleaned and flow benched the injectors and they all flowed perfectly and i also put new pintle caps o rings and gromets on all 4 injectors
Last edited by overpaid4myfc; 10-27-10 at 07:32 PM.
#2
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iTrader: (1)
Have you done a continuity or ohm test of the Light Green/Black wire to check the integrity of the wire? Does this wire have voltage on it w/key to on as it should? Have you used an LED light to verify whether the ECU was firing that particular injector? And is this a JDM engine or not?
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#9
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iTrader: (1)
The link shows the kind of LED light you would need. They're about $2 at the local Radio Shack (not sure if they have those by you but I'm sure there is something similar to them).
http://www.teamfc3s.org/info/article...odes/main.html
http://www.teamfc3s.org/info/article...odes/main.html
#10
yeah we got a radio a shack, i'll check it out tomorrow they are closed already. so the light green wire with the black stripe coming off the ecu? there's also another light green wire with black stripe coming from the harness into a little plug with a brown cap on it and the brown cap has a diode symbol on it, what's that for?
#11
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iTrader: (1)
yeah we got a radio a shack, i'll check it out tomorrow they are closed already. so the light green wire with the black stripe coming off the ecu? there's also another light green wire with black stripe coming from the harness into a little plug with a brown cap on it and the brown cap has a diode symbol on it, what's that for?
#15
talking head
when i read the thread yesterday i was about to write the same thing
though you had beaten me with the punch and he had already poo- poo'd it
i had pretty much the same scenario,, owner had tried 4 different harnesses and ECU's
-- even sent it to the big rotor shop who shrugged shoulders at it
needless to say,, twas fixed within the first 3 minutes that i had the UIM off
sometimes it pays to double check the obvious
#17
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Join Date: Aug 2004
Location: Albuquerque, New Mexico
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We put a fuel pump cut switch in, so you turn it off and let the fuel run out and engine die. No more flooding and hard starts. It is a thought! BTW - you have a PM on the windshield.
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trickster
2nd Generation Specific (1986-1992)
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07-01-23 04:40 PM