engine runs strange

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Jesper
Newbie
Posts: 7
Joined: Wed Nov 25, 2015 9:53 pm

engine runs strange

Post by Jesper » Sat Nov 18, 2017 9:27 am

Hello.
I have a funny problem with my car. It is A Chrysler Pt cruiser 2001 with 2,0 engine.

When it is driven and the throttle is released, the car starts jerking when engine speed is around 1800 rpm and down to 1000 rpm. Sometimes more than other. I hooked up A Pico with amp. reading on the supply wire to the fuel injectors and a second channel to injector 1, voltage reading. I will attach a psdata file.
Can anyone tell me if it is seen before, is it normanl. I think it is why the car jerks.

Best

Jesper Pedersen, Denmark.
Attachments
Chrysler_PT Cruiser_2001_Petrol_20171118-0001 11.psdata
(16.87 MiB) Downloaded 142 times

Jesper
Newbie
Posts: 7
Joined: Wed Nov 25, 2015 9:53 pm

Re: engine runs strange

Post by Jesper » Sun Nov 19, 2017 9:21 am

Just picture 7 shows.
Attachments
Chrysler_PT Cruiser_2001_Petrol_20171119-0001 picture 7.psdata
picture 7
(2.2 MiB) Downloaded 118 times

turbozh
Newbie
Posts: 3
Joined: Wed Oct 18, 2017 5:44 pm

Re: engine runs strange

Post by turbozh » Sun Nov 26, 2017 7:38 pm

To see what is the problem, you have to do more test.
My first suggest is to scope the crankcase and camshaft signals to see a proper signal.

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