Search found 705 matches

by Technician
Tue Mar 19, 2024 8:11 pm
Forum: Diagnostic discussion
Topic: Kia Ceed 3 1.6 diesel alternator ripple test
Replies: 5
Views: 277

Re: Kia Ceed 3 1.6 diesel alternator ripple test

Just an interim update.... I've rectified the EGR circuit fault and the exhaust system operation is much cleaner, and the power output of the engine is significantly better. Given then that the injectors all perform the same, I left thinking about what is operating on the engine to provide those spi...
by Technician
Tue Mar 12, 2024 1:25 pm
Forum: Diagnostic discussion
Topic: Kia Ceed 3 1.6 diesel alternator ripple test
Replies: 5
Views: 277

Re: Kia Ceed 3 1.6 diesel alternator ripple test

So I've done an injector test of all four injectors. Each injector provides the exact same waveform. During acceleration and cut off each injector performs the same and no faults can be seen using this method. I did question the operation of the injectors over time because of exhaust smoke, but test...
by Technician
Mon Mar 11, 2024 1:21 pm
Forum: Diagnostic discussion
Topic: Kia Ceed 3 1.6 diesel alternator ripple test
Replies: 5
Views: 277

Re: Kia Ceed 3 1.6 diesel alternator ripple test

Thanks Roman,

I'll do the injector tests tonight and post up for advice.
by Technician
Fri Mar 08, 2024 5:26 pm
Forum: Diagnostic discussion
Topic: Kia Ceed 3 1.6 diesel alternator ripple test
Replies: 5
Views: 277

Kia Ceed 3 1.6 diesel alternator ripple test

I used the scope presets and followed the instructions for a PCM controlled alternator test. I was a little confused about the test setup advising me to put the probe on the alternator main battery terminal. Running the engine at idle the following trace was recorded. Before I scoped the alternator ...
by Technician
Thu Jan 25, 2024 11:02 am
Forum: Help me fix my car
Topic: Ford Fiesta 1.0 ecoboost 2014
Replies: 0
Views: 1516

Ford Fiesta 1.0 ecoboost 2014

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by Technician
Tue Nov 21, 2023 1:19 pm
Forum: PicoScope 7 Automotive software
Topic: Do I have a valid point?
Replies: 2
Views: 3958

Re: Do I have a valid point?

Thanks Steve, let me find it and find a way to upload it here. File sizes?
by Technician
Fri Nov 17, 2023 1:24 pm
Forum: PicoScope 7 Automotive software
Topic: Do I have a valid point?
Replies: 2
Views: 3958

Do I have a valid point?

I'll always be in learning mode with PicoScope 7. Here shown is a typical trace of the ignition primary for both voltage and current. To get four cylinders on the scope graticule, I had to increase the time base to 20 ms/div. Now the fun begins... The ignition coil primary windings are shorting on t...
by Technician
Thu Nov 16, 2023 5:53 pm
Forum: Diagnostic discussion
Topic: Ford Fiesta 1.4 Petrol year 2012 engine code SPJC
Replies: 5
Views: 9430

Re: Ford Fiesta 1.4 Petrol year 2012 engine code SPJC

I should bring this thread to a conclusion and close it now. 1 / The engine was rebuilt five years ago. I was not convinced that the cylinder head gasket was leaking, because initially I did not see the coolant level reducing during driving cycles of the car, i.e. around 100 miles use. 2/ When the c...
by Technician
Sat Oct 28, 2023 12:48 pm
Forum: PicoScope 7 Automotive software
Topic: Software updates...
Replies: 1
Views: 1973

Software updates...

When printing scope traces using rulers etc, the legends don't print. After printing, the channel labels underneath the scope traces A,B,C and D are not colour coded like the rulers, therefore make the presentation difficult to decide which ruler applies to which channel. Would it be possible to upd...
by Technician
Mon Oct 02, 2023 4:58 pm
Forum: Diagnostic discussion
Topic: Ford Fiesta 1.4 Petrol year 2012 engine code SPJC
Replies: 5
Views: 9430

Re: Ford Fiesta 1.4 Petrol year 2012 engine code SPJC

B/ What component in a cylinder can cause intermittent compression problems when the engine is cold some mornings and other mornings the engine starts and runs okay for days on end. Maybe take a look for coolant in the cylinder in the morning - that would fit your symptoms. - Inc shorting out the p...