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Got my LS3 (58x) swap running but having issues with sync errors. Reading this: https://www.diyautotune.com/support/...megasquirt-vr/ it mentions that if there are two seperate long bars that the sensor is wired backwards. I'm 99% sure it's right, but I have the two long bars like they described. Should I keep messing with r56 and r52 or try swapping the ground and signal wires on the sensor?
LS sensors are hall effect, not VR. You haven't mentioned which MS you're running (3.0, 3.57, ms3x etc) or what pullup resistor's you've got whacked on.
LS sensors are hall effect, not VR. You haven't mentioned which MS you're running (3.0, 3.57, ms3x etc) or what pullup resistor's you've got whacked on.
Thank you......you didn't actually fix the issue but triggered me to look a little deeper at the basics. You are correct, the LS sensors are hall, but yet you set the MS up as a VR sensor and you tune the pots per the link I posted.
Here's the part I missed.
VR Input with pullup for hall sensors, LS2/58X, optical sensors or points
a) Find JP1 in the bottom right of the board. Place a jumper across positions 1 and 2
b) Find J1 in the middle of the board. Place a jumper across positions 3 and 4
c) Install a 1k resistor (any value 470R - 2k2 is likely ok) onto the pads marked R57
d) With a small screwdriver, turn the pots, R52 and R56, 7 turns anticlockwise (sometimes you may feel a "click" when the end position is reached, they can't be damaged by turning too far.) and then turn R56 back about 2 turns clockwise.
For anyone converting a megasquirt configured for a Miata to an LSx, the miata uses position 5 and 6 on JP1 which is inverted VR, where the LS needs regular VR.
08-21-2019, 08:41 PM
Crank Signal Issue
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