stutter at Idle and when accelerating
#1
stutter at Idle and when accelerating
My Stype has began stuttering at idle and when accelerating normally between 50 and 55 mph w/o a code. I've narrowed it down to bad coils or a vacuum leak and plan on test driving it with an obd2 scanner. What other than the LTFT and STFT should I be looking at?
#2
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Barry Mapes (09-23-2013)
#3
Mine was hesitating at light throttle settings and at idle. It didn't give any trouble codes but felt through the "backside code reader" like a misfire. I bought 4 coils online, changed a whole bank in one go and the problem is fixed.
I now need to work out which of the original coils is faulty......
I now need to work out which of the original coils is faulty......
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#8
So after researching the scanner I bought I figured out how to pull info from the misfire monitor itself. It's showing misses on my #1 cylinder. That's the one on the passenger side of the car (in the US) closest to the grill correct?
And if so, is there a way to test the coil w/o removing the manifold?
And if so, is there a way to test the coil w/o removing the manifold?
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Those are % Fuel Trim values, yes? If so, it might concern me to have consistent 3 - 4 % difference between the two banks. Doesn't this indicate consistent leak on one side(bank 2)?
#12
The V-6 is known for several problems. Have you checked for oil in the plug wells? The PVC elbows go bad and one side of the engine you can't get to the coils without removing the intake.
It would be worth your while to read up on all this and do the maintenance all at once. I would change all coils and plugs if they have not been done. They are a wear item.
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It would be worth your while to read up on all this and do the maintenance all at once. I would change all coils and plugs if they have not been done. They are a wear item.
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jimforrest (uk)
XK8 / XKR ( X100 )
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02-28-2019 06:42 PM
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