Subaru XV CVT 2.0i shudders when accelerating from full stop

Asked by Aug 23, 2019 at 10:22 AM about the 2015 Subaru XV Crosstrek AWD

Question type: Maintenance & Repair

I have a Subaru xv 2.0i 2015 CVT. Converted to LPG.

The car is jerking when moving from a full stop.

If I disconnect the battery and reconnect it drives perfect for a day or so.

And then it's jerking again when its about 1500rpm and moving from a full
stop.

When is write jerking (shudders) I mean the car is jumping ...

I did the throttle relearn. And it's the same.

I can not figure this one out and neither the garage.

May one of the computers in the car cannot calibrate itself that which one?

I replaced the CVT ECU and it did not help...
tested the camshaft sensors and got 5v from them when no metal near them
when putting a metal its drops to 0v. remove the metal again it stays at 0v
putting back metal it goes up to 5v... so I think its the camshaft sensors but
didn't yet replace them as they are pricey 300$ for a unit and this car have 4
of them.  

2 Answers

850

Baffling indeed, but I doubt it's your cam sensors, so leave them alone. Could it be that the ECM can't calibrate to LPG? Are there any CELs...or more importantly, CVT flags? 2nd gen 2.5i CVTs are robust, but I don't know if the smaller 2.0i CVT is holding up as well. You may need deeper data-logging assistance. Good luck. TSG/B

No cels at all. The problem is on gasoline as well. I disable the lpg . Disconnect battery reconnect. Drive on gasoline only and its making the same problem... Drives good only after battery disconnect and connect :-)

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