Search found 11 matches

by onboardtech333
Sat Jan 17, 2015 2:08 am
Forum: Help me fix my car
Topic: MISFIRE GM 3.5 PETROL
Replies: 1
Views: 5957

MISFIRE GM 3.5 PETROL

I am still very new to this pressure transducer testing and could use a little help on this one. Repeat cylinder misfire on cylinder 2 , saw what I believed to be a failing camshaft lobe or lifter and have now replaced both with these results. As a reference I have included a pattern from a known go...
by onboardtech333
Fri Jun 21, 2013 3:25 am
Forum: Diagnostic discussion
Topic: Advice on waveform
Replies: 15
Views: 19527

Re: Advice on waveform

Sorry don't have one yet. The customer was in a rush to take it out for the weekend. I should be able to steal it back from him for a finished product snappy. :lol:
by onboardtech333
Thu Jun 20, 2013 10:37 pm
Forum: Diagnostic discussion
Topic: Advice on waveform
Replies: 15
Views: 19527

Re: Advice on waveform

Just to close this out . The exhaust valve seats had a small ridge of carbon. Valves were lapped and seated . All is well in New York once again. Thank you all for the input!
by onboardtech333
Thu Jun 20, 2013 10:35 pm
Forum: Diagnostic discussion
Topic: 2006 Mazda 6 L3 2.3
Replies: 9
Views: 13922

Re: 2006 Mazda 6 L3 2.3

This should be the same as yours
Unfortunately pc is down so I cannot check your attachment till I'm back at work
by onboardtech333
Thu Jun 20, 2013 10:25 pm
Forum: Diagnostic discussion
Topic: OCV Capture wanted.
Replies: 1
Views: 4318

Re: OCV Capture wanted.

I'll try and snag one for you. May take a day or two though
by onboardtech333
Mon Jun 03, 2013 2:19 pm
Forum: Diagnostic discussion
Topic: 4.6 Landrover/Range Rover cam/crank waveform please.
Replies: 8
Views: 14435

Re: 4.6 Landrover/Range Rover cam/crank waveform please.

Trying to get a customer who has one in for you so I can grab a quick reference.
I was pretty sure they were good about setting a correlation code for timing being off though.
by onboardtech333
Wed May 29, 2013 1:08 pm
Forum: Diagnostic discussion
Topic: Advice on waveform
Replies: 15
Views: 19527

Re: Advice on waveform

This has a coil per plug with one plug wire to each iridium plug. I also attached the secondary pattern for the companion cylinder here
by onboardtech333
Wed May 29, 2013 12:13 am
Forum: Diagnostic discussion
Topic: Advice on waveform
Replies: 15
Views: 19527

Re: Advice on waveform

And the injector current ramp
by onboardtech333
Wed May 29, 2013 12:09 am
Forum: Diagnostic discussion
Topic: Advice on waveform
Replies: 15
Views: 19527

Re: Advice on waveform

Terrible response time only due to a holiday here in the US. I no longer have a transducer hose thanks to the wonderful engineers that decided to put the companion cylinder four inches from the frame. However I went back to spark and injector drivers. I can clearly see an issue with the secondary in...
by onboardtech333
Sun May 26, 2013 4:42 pm
Forum: Diagnostic discussion
Topic: Advice on waveform
Replies: 15
Views: 19527

Re: Advice on waveform

This is from Cylinder 1 running compression which is the opposite bank. The companion cylinder on this LS2 is Cylinder 3. The injectors have been swapped from 2 to 4 and all around at this point. I should add that I am a novice scope user just getting my feet wet with some of these waveforms.