rrob
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Posts posted by rrob
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Is the afm supply 12v or 5v?
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Most piston engines seem to like 360-420 around idle, I ramp it up with engine speed also.
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R33 gts-t have a 2 speed fuel pump controller.
You should be able to test the speed output with a multimeter, back probed the fuel pump wires on the tank lid. From memory its 9-10v on low speed and 12-13v on hi.
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Have you logged bap and speed to see the effect?
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Temp sensors need 0v/sensor ground not 5v.
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Iat Inquiry
in G4+
I'd be looking into the injector dead times.
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Grab a set of r35 coils and bolt them in with a spacer and a longer bolt. Wiring is the same connector and pinout.
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Could the trigger disc be in upside down?
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Make sure you're on the latest firmware, there was a problem in a recent release.
Its in the firmware notes.
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R34 GTT has a different connector. The 300zx ecu won't plug in.
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Out of curiosity... which pumps and fuel reg are you running?
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What's in the right hand port? That needs to breath without restriction.
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Did you account for the -5 degree mark on the crank pulley? Almost every SR that I tune is 5 degrees out due to this.
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Fuel pump speed control working correctly?
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These would normally be connected to pin 16 on the ecu connector.
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Yes. The factory boost solenoid wiring.
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Boost solenoid can be wired directly to the oem wiring next to the power steering reservoir.
Iat can go on the expansion. Sensor ground and temp 3.
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The 2J idle valve that I checked (for the exact same reason) had a 1-way valve built into it.
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Connect them in parallel.
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I use the Motec DMC-D for this.
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I find low 400's works well at idle and light load. Usually have to chase the VCT a bit with inj timing also.
Thunder wheel sensor
in G4+
Posted
Early R/S chassis rear wheel speed sensors bolt into the Z diff and work directly. I don't have a solution for the front though.