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5 votes

Mode 02 - Freeze frame data use

While the fault code that popped the MIL is tremendously useful by itself, freeze frame data offers huge help, as it allows you to see the exact conditions under which the engine decided that there is ...
I have no idea what I'm doing's user avatar
4 votes

OBD MIL commanded status and DTC stored

Not all DTC's will activate the CEL It is up to the manufacturer whether or not to trigger the Check Engine Light based on the Diagnostic Trouble Code, so a misfire DTC is not the treated with the ...
Zaid's user avatar
  • 39.2k
3 votes

Mode 02 - Freeze frame data use

We find FF so useful that we retain it on the customers invoice in case the same code sets later. It is also very helpful when used in conjunction with a test drive on intermittent faults. It tells ...
Fred Wilson's user avatar
  • 11.6k
3 votes

Mode 02 - Freeze frame data use

They help us home in on what might be the root cause Maybe an example would help explain why freeze frames are so useful Here is the P0300 freeze frame from that infamous Merc GLK280: +-------------...
Zaid's user avatar
  • 39.2k
3 votes

2000 Jetta runs rough, shudders on cold start only on wet days.

I have a 2001 Pontiac Sunfire that HAD a similar issue. After having been looked at by far too many people, one mechanic figured out how to recreate the issue by pouring water on a certain part of the ...
Necreaux's user avatar
  • 133
2 votes

2008 Chrysler Crossfire - Check Engine Light

very well formed question. At any point did you test your fuel injectors? if you got some crud in your fuel line one injector on one side might be dripping while another might be going rich. Does ...
Cc Dd's user avatar
  • 2,879

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