Ford Ranger 4.0 v6 DIS primary current

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bonecrusher
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Ford Ranger 4.0 v6 DIS primary current

Post by bonecrusher » Thu Mar 31, 2016 2:07 pm

Hello

This car hesitates and swithes off. There are no fault codes.

I am working on this v6 Ford Ranger with DIS ignition. I have connected the current clamp to the supply voltage for the coil. This is the pattern I have. I cannot make any sense of it Why does it have 2x (signal?) at times.
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[The extension bmp has been deactivated and can no longer be displayed.]


volrem
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Re: Ford Ranger 4.0 v6 DIS primary current

Post by volrem » Thu Mar 31, 2016 2:37 pm


bonecrusher
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Re: Ford Ranger 4.0 v6 DIS primary current

Post by bonecrusher » Thu Mar 31, 2016 3:19 pm

Thanks,

It all makes sense!

Understand perfectly now!

bonecrusher
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Re: Ford Ranger 4.0 v6 DIS primary current

Post by bonecrusher » Sat Apr 02, 2016 8:11 am

Hello Guys

Found the fault on this car. The crank sensor was at fault. It was adjusted too close too the pickup wheel, all I did was take it a few millimeters back and the car revs up. This makes absolutely no sense to me. I have attached pics of the CKP at idle. The pic with the higher amplitude is when the Car idles but does not rev/switches of as soon as the throttle is depressed.

1st pic everything works as is
2nd pic is when problem occurs

All waveforms taken at idle
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[The extension bmp has been deactivated and can no longer be displayed.]

[The extension bmp has been deactivated and can no longer be displayed.]


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Fat Freddy
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Re: Ford Ranger 4.0 v6 DIS primary current

Post by Fat Freddy » Sat Apr 02, 2016 8:59 am

Looks like a damaged tone wheel to me. :shock:

Some one been sticking things where they shouldn't? What's history?

HTH
FF

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Re: Ford Ranger 4.0 v6 DIS primary current

Post by STC » Sat Apr 02, 2016 8:12 pm

Capture -bad CKP.JPG
Psdata file with the sensor in its original (faltering) position from start up to cut out, with pedal position if easy enough to get would have been interesting to look at.

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