Nissan Micra CAM/CKP known good needed

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RonMcleod
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Nissan Micra CAM/CKP known good needed

Post by RonMcleod » Mon Oct 08, 2018 1:00 am

Hi guys and gals

I'm looking for a known good CKP/CAM waveform for a Nissan 2007 Micra with a CR14 engine. I have posted the one I have off the vehicle but I cant find a known good waveform.

This Nissan Micra cranks but doesn't start. When you first crank the engine I get 1 or maybe 2 injector pulse and one spark out of the coil.

I was told the only reason the car was in for repair was that the rocker cover was leaking oil, they removed the rocker cover changed the gasket and reassembled it and now it does not start. It has no codes they tried the spare key they also tried a new cam and crank sensor before I got to the job.

Cheers for the help
Ron
Attachments
Nissan Micra No start WPS CKP CAM COIL crank no start.psdata
This includes the coil trace but because it has no spark it is a flat line
(470.3 KiB) Downloaded 155 times

Technician
TwoWaves
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Re: Nissan Micra CAM/CKP known good needed

Post by Technician » Mon Oct 08, 2018 2:21 pm

Hi Ron,

Before jumping in with both feet suspecting the correlation I'd be inclined to back tract the previous repairs done elsewhere and then look at valve timing when ignition and fuel are available.

RonMcleod
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Joined: Thu Aug 26, 2010 8:14 am

Re: Nissan Micra CAM/CKP known good needed

Post by RonMcleod » Tue Oct 09, 2018 9:06 am

Hi all

I found the problem with this vehicle, it turns out when they did the rocker cover gasket they damaged the cam reluctor. I couldn't get photos because they fixed it and didn't take any photos.


Cheers for the help
Ron

landroverman1958
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Re: Nissan Micra CAM/CKP known good needed

Post by landroverman1958 » Thu Oct 11, 2018 6:09 am

Good morning that is a bad wave form,of the cam,it should show the cylinders trigger points for each cylinder in firing order,eg i342 with notches shown as 1,111,1111,11.i have got a wave form somewhere,,,,,

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Fat Freddy
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Re: Nissan Micra CAM/CKP known good needed

Post by Fat Freddy » Thu Oct 11, 2018 1:38 pm

landroverman1958 wrote:Good morning that is a bad wave form,of the cam,it should show the cylinders trigger points for each cylinder in firing order,eg i342 with notches shown as 1,111,1111,11.i have got a wave form somewhere,,,,,
Don't be so sure. This is a Nissan cam capture. Nothing wrong with the setup, cam or sensor.
Attachments
Nissan.jpg

speck
TwoWaves
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Re: Nissan Micra CAM/CKP known good needed

Post by speck » Sat Oct 13, 2018 1:08 am

Hi, don't know about damaged cam reluctor, however here is a good waveform without cam flop which you can see
in the original post and Fat Freddy's pic.
Attachments
Nissan Micra No start WPS CKP CAM COIL crank no start.psdata
good
(871.73 KiB) Downloaded 99 times

speck
TwoWaves
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Re: Nissan Micra CAM/CKP known good needed

Post by speck » Sat Oct 13, 2018 1:09 am

Hi, don't know about damaged cam reluctor, however here is a good waveform without cam flop which you can see
in the original post and Fat Freddy's pic.
Attachments
Nissan Micra No start WPS CKP CAM COIL crank no start.psdata
good
(871.73 KiB) Downloaded 88 times

landroverman1958
OneWave
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Re: Nissan Micra CAM/CKP known good needed

Post by landroverman1958 » Sat Oct 13, 2018 1:23 pm

Here is a j peg off a micra 1.2 2005
Attachments
20181013-1418-1.jpg

volrem
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Location: Estonia

Re: Nissan Micra CAM/CKP known good needed

Post by volrem » Sat Oct 13, 2018 4:11 pm

CR14 engine (mentioned in first post) is 1,4 L.

Different engines and even same engines but different years can have different patterns.

speck
TwoWaves
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Re: Nissan Micra CAM/CKP known good needed

Post by speck » Sun Oct 14, 2018 3:40 am

volrem wrote:CR14 engine (mentioned in first post) is 1,4 L.

Different engines and even same engines but different years can have different patterns.
Hi, same engines have the same pattern, if not , they are not the same. We are not talking about an identical engine.

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