Running rough (extreme missing)
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- Member
- Posts: 160
- Joined: Sat Apr 30, 2011 10:23 am
- Location: Auckland, New Zealand
Re: Running rough (extreme missing)
So confused, just came back from a week in queens town, car hasn't moved since I left, start it up and give it bait of a rev and it's perfect, not complaining but so weird. Must have been that cable then, and it's got new as plugs in it by the way.
JZ = engine code
X = Chassis
71 = Series
therefore... jzx71
X = Chassis
71 = Series
therefore... jzx71
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- Member
- Posts: 160
- Joined: Sat Apr 30, 2011 10:23 am
- Location: Auckland, New Zealand
Re: Running rough (extreme missing)
Ok it's been figured out, computer is faulty, not worth repairing it so I need a new ecu. Anyone know where one is?
JZ = engine code
X = Chassis
71 = Series
therefore... jzx71
X = Chassis
71 = Series
therefore... jzx71
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- Member
- Posts: 160
- Joined: Sat Apr 30, 2011 10:23 am
- Location: Auckland, New Zealand
Re: Running rough (extreme missing)
On second thought. Worth getting a second hand link ecu or something so we can give it a bit of a tune, maybe get bait more power? And then in the long run itb's?
JZ = engine code
X = Chassis
71 = Series
therefore... jzx71
X = Chassis
71 = Series
therefore... jzx71
-
- Member
- Posts: 160
- Joined: Sat Apr 30, 2011 10:23 am
- Location: Auckland, New Zealand
Re: Running rough (extreme missing)
Ok now i have a thought. Put the new ecu in and was sweet fora bout 2 weeks, now its started doing it again, worse than before. Im thinking maybe there is a wiring fault that is shorting the ecu? Becasue when they tested it the fault was the ecu not sending power to the injectors.
JZ = engine code
X = Chassis
71 = Series
therefore... jzx71
X = Chassis
71 = Series
therefore... jzx71
Re: Running rough (extreme missing)
have you looked at the circuit opening relay? under the hood?
cheek that
cheek that
curb |kərb| kerb
noun
1 a stone or concrete edging to a street or path.
2 a check or restraint on something
3 a concrete construction used to help rotate your car
4 a tempting shortcut
noun
1 a stone or concrete edging to a street or path.
2 a check or restraint on something
3 a concrete construction used to help rotate your car
4 a tempting shortcut
Re: Running rough (extreme missing)
check alternator voltage, jz's are real bad for alternators, my mates jzx81 was over-voltaging and blew his ecu up, check brushes and give the slip-ring a sand if the alt is over charging, even my jzx81 was doing it after i got it going from 4 months of sitting.
just an idea anyway, just hope u didnt kill the ecu cause im running out of them lol think ive got 1 left.
just an idea anyway, just hope u didnt kill the ecu cause im running out of them lol think ive got 1 left.
Re: Running rough (extreme missing)
as for power not getting to injectors, the ecu grounds the injectors out, the power feed is permanent when you ign is on, thick black/orange wires, all injectors should have 12v to them with key on. so check that for a start you might have a loose wire or bad connection.... if they all have 12v then its the ecu not grounding them out which could indicate bad ecu or bad grounding possibly.
wiring issues suck ass, i fixed a 1ggte that had no injector pulse and the cause was a loose wire to the ignitor.
good luck
wiring issues suck ass, i fixed a 1ggte that had no injector pulse and the cause was a loose wire to the ignitor.
good luck