Search found 319 matches

by Fat Freddy
Fri Jun 07, 2013 3:34 am
Forum: Case studies
Topic: It’s not always about diagnostics....
Replies: 8
Views: 15402

Re: It’s not always about diagnostics....

Hi Dale Nice write up. I just thought I would have a play with your data file and this is what I came up with. One of my thoughts is. Is it possible the air gap is changing to give you the change in amplitude. Also is it possible a couple of teeth have been bent togeather (circled area) ? Also I can...
by Fat Freddy
Wed May 29, 2013 11:05 am
Forum: Diagnostic discussion
Topic: Advice on waveform
Replies: 15
Views: 8917

Re: Advice on waveform

I think the ignition needs a closer look. Your scope set up needs some attention though (avoid useing the drop down set ups if you can). A sample rate of 1us for igntion (check in properties), 20Kv for a kick off and enough time (seconds) on the screen to get a decent capture but not so big the file...
by Fat Freddy
Sun May 26, 2013 7:29 am
Forum: Diagnostic discussion
Topic: Advice on waveform
Replies: 15
Views: 8917

Re: Advice on waveform

As previously mentioned. A capture from the other bank.

You really want it's companion cylinder (#7 on an LS1?) plus have the crank signal on both to compare with.

An ignition capture on cyl 4 with the crank sensor, sample rate of 1us and a bit of time on the screen may help.

FF
by Fat Freddy
Sat May 25, 2013 11:04 am
Forum: Introductions
Topic: Hi from the Highlands
Replies: 4
Views: 3766

Re: Hi from the Highlands

Dundeeguy wrote:Skye, a place I've never been too.
Awesome place. When I was younger living in Perthshire I would try to get to Portree every other weekend. Great folk, awesome scenery, strange nightlife and crazy women.

FF
by Fat Freddy
Wed Mar 27, 2013 10:43 pm
Forum: Diagnostic discussion
Topic: can bus problem or software fault ?
Replies: 16
Views: 16832

Re: can bus problem or software fault ?

Neilcur wrote:This link is worth a read on how to go about it :wink:

http://www.aftermarketonline.net/28430- ... l-gremlins

He also has a book available, good practical advice.

"Practical CAN Bus Diagnostics"
by Fat Freddy
Wed Mar 27, 2013 10:24 pm
Forum: Help me fix my car
Topic: BMW R1100RT
Replies: 7
Views: 8698

Re: BMW R1100RT

I'm hearing you. It gives me the hump too. Being optomistic :? I like to think that perhaps next time the approach for repair would be diagnosis first, knowing that it can be done by a properly equipped and educated workshop, even if they (the vehicle owner) dosn't understand the wiggly lines. I thi...
by Fat Freddy
Wed Mar 27, 2013 11:08 am
Forum: Help me fix my car
Topic: BMW R1100RT
Replies: 7
Views: 8698

Re: BMW R1100RT

No.

Your reply reminded me of a moderator from another forum. Made me chuckle.

FF
by Fat Freddy
Wed Mar 27, 2013 1:45 am
Forum: Help me fix my car
Topic: BMW R1100RT
Replies: 7
Views: 8698

Re: BMW R1100RT

What sort of ignition has this got? Apart from what Kev :wink: :D says. Primary drive (amps/volts) is where I would normally start to look. Also work out, if you can, weather it's cylinder specific. I think most folks are going to need some sort of info on this "very simple ECU" set up. HTH FF
by Fat Freddy
Tue Mar 12, 2013 9:23 am
Forum: Diagnostic discussion
Topic: Parasitic draw test
Replies: 6
Views: 5169

Re: Parasitic draw test

Can you post your file up?

FF
by Fat Freddy
Thu Mar 07, 2013 9:39 am
Forum: Help me fix my car
Topic: 2003 Clio P0170
Replies: 35
Views: 28997

Re: 2003 Clio P0170

Hi Just a couple of tips: I need to start earlier in the frame to catch ALL of the WOT You really need to increase the time per division (Top left of the screen). At the moment you have it at 500mS (a total of 5seconds across the screen), which is a bit short for this type of capture. Try increasing...