Search found 319 matches

by Fat Freddy
Mon Sep 04, 2017 1:29 am
Forum: PicoScope 6 Automotive software
Topic: Maths Channel crash report
Replies: 1
Views: 638

Maths Channel crash report

Viewing Steve's file from here. https://www.picoauto.com/library/training/individual-cylinder-valve-timing-errors?mc_cid=def56a3dfe&mc_eid=2a67963477 Every time I select Tools, Math Channel it's followed by a crash. Won't let me send crash report. Using software version: 6.12.7.2724. Windows 10. No ...
by Fat Freddy
Sat Sep 02, 2017 1:36 pm
Forum: Diagnostic discussion
Topic: HVAC RMS
Replies: 10
Views: 3216

Re: HVAC RMS

Like the theory STC but in the real world you wouldn't last five seconds. In fact some of your text book ideas will destroy an AC system. It's the kiss of death. - period.
by Fat Freddy
Wed Jul 19, 2017 1:10 pm
Forum: Diagnostic discussion
Topic: Little bit of help to understand coil signal??? negative ?
Replies: 23
Views: 5407

Re: Little bit of help to understand coil signal??? negative

Hi Debbie.

IIRC you had a timing problem with a Farrari. Did you get an answer to that?

With your latest. Can you do the same capture (running, fault occurring) and include a sync to cyl 1?
What do you think of pg 9 204ms? Advance? I may possibly be having deja vu here(Mick :wink: )

HTH
FF
by Fat Freddy
Tue Jul 18, 2017 1:05 pm
Forum: Diagnostic discussion
Topic: VW Golf 2005 - PD BKD Engine
Replies: 15
Views: 4791

Re: VW Golf 2005 - PD BKD Engine

This throws a Manifold / Boost Pressure Sensor Signal Implausible fault at Ignition on . Won't Clear. Engine not running I see 1306mB in measured values against 1020 mB atmospheric and desired. The Fault Code is accurate and Validated. Bosch ESi (this is a Bosch ECU and Component) specifies MAP Vol...
by Fat Freddy
Mon Jul 17, 2017 11:17 pm
Forum: Diagnostic discussion
Topic: VW Golf 2005 - PD BKD Engine
Replies: 15
Views: 4791

Re: VW Golf 2005 - PD BKD Engine

Dial it to match atmospheric and the Fault Clears.
And at what voltage was that?
by Fat Freddy
Mon Jul 17, 2017 11:39 am
Forum: Help me fix my car
Topic: Opel Corsa C Z14XE doubts about ignition primary signal
Replies: 5
Views: 2319

Re: Opel Corsa C Z14XE doubts about ignition primary signal

I do notice that cyl. 3 burn time is somehow smaller than rest of the cylinders. Also burn voltage 1-1.5 kV higher. That will go hand in hand. There are all these examples of bits of string and coil energy all over the net to demonstrate that. Try playing around with the plug gap and watch burn tim...
by Fat Freddy
Fri Jul 14, 2017 11:38 am
Forum: Diagnostic discussion
Topic: Flow Meter
Replies: 9
Views: 2261

Re: Flow Meter

IIRC TiePie do one. But before you go rushing out to buy one check the details.............Carefully

They, TiePie, have nice idea's and some very good ones but their scopes seriously lack power....... TiePie for show. Pico for a pro.

HTH
FF
by Fat Freddy
Wed Jul 12, 2017 4:33 am
Forum: PicoScope 6 Automotive software
Topic: X Y Channel switch.
Replies: 11
Views: 5399

Re: X Y Channel switch.

So what can we use XY mode for? Any automotive examples?

Cheers
FF
by Fat Freddy
Fri Jul 07, 2017 1:08 am
Forum: Diagnostic discussion
Topic: Individual cylinder valve timing errors
Replies: 18
Views: 6089

Re: Individual cylinder valve timing errors

The same two cylinders now idling - badly. The most immediate things that are noticeable is the increase in pressure in cylinder one and the loss in cylinder two. I believe this to be attributed to reduced leak down time and reduced filing time. Fixed with a new cam and other worn valve components r...
by Fat Freddy
Fri Jul 07, 2017 12:29 am
Forum: Diagnostic discussion
Topic: Individual cylinder valve timing errors
Replies: 18
Views: 6089

Re: Individual cylinder valve timing errors

This is one of my favorite wave-forms (Diesel light vehicle). One of the reasons' is because it shows a major pitfall of carrying out a traditional comp test. This would pass. Yet in reality it's a big 'F' for fail. Anyway. But in this example (Cranking) there is no rise in compression from an worn ...