Mysterious miss

Grabber523 · #1 Mon, March 9th, 2009, 03:51 PM

Quote:

Originally Posted by JackandJanet

It really DOES sound like something "wet", doesn't it? Sure doesn't sound like "limp mode", not if you didn't get an overheat warning.

I know these engines are very sensitive to water in the vicinity of the plugs, but if a truck can't stand a little slush, well sheesh!

I'm sure stumped.

- Jack

If you pulled codes on it it would probably have some in there for cylinder misfires, even though it didn't trip the CEL. Have you changed the plugs on it yet?

***88Racing*** · #2 Mon, March 9th, 2009, 06:01 PM

No plugs or cops changed yet.

Only 23K on truck mostly highway miles

If the gryphon were hooked up could it pull them or does have to see them as the pcm does

Lars

Grabber523 · #3 Mon, March 9th, 2009, 08:13 PM

Quote:

Originally Posted by 88Racing

No plugs or cops changed yet.

Only 23K on truck mostly highway miles

If the gryphon were hooked up could it pull them or does have to see them as the pcm does

Lars

If the PCM see it, the Gryphon should...just because you don't have a CEL doesn't mean there aren't codes stored in there.

***Jackpine*** · #4 Mon, March 9th, 2009, 09:42 PM

Quote:

Originally Posted by Grabber523

If the PCM see it, the Gryphon should...just because you don't have a CEL doesn't mean there aren't codes stored in there.

Right! Go into the "Diagnostics" menu (or something like that). It should show any codes you have thrown. And - change your "Alerts" to tell you if even ONE code has been thrown. I think, the default setting on this is three codes.

Alerts is a pretty neat feature, once you get used to it and learn what should be an alert and what shouldn't.

- Jack

jimmyv13 · #5 Mon, March 9th, 2009, 11:02 PM

With my Edge, I didn't see all of the codes that the Ford tech brought up...there were 2 or 3 4x4 codes that came up when my vacuum module crapped the bed and the Edge never showed them. The Edge only showed the P0171 code for a lean condition from a bad COP. Any idea why it would see certain codes and not others?

***88Racing*** · #6 Mon, March 9th, 2009, 11:39 PM

Thanx Jack and Grabber523

This will give me more incentive to get the gryphon hooked up and running.

Lars

***Jackpine*** · #7 Tue, March 10th, 2009, 12:25 AM

Quote:

Originally Posted by jimmyv13

With my Edge, I didn't see all of the codes that the Ford tech brought up...there were 2 or 3 4x4 codes that came up when my vacuum module crapped the bed and the Edge never showed them. The Edge only showed the P0171 code for a lean condition from a bad COP. Any idea why it would see certain codes and not others?

No, I have no idea at all. I think this is a question for the Mad Doctor! Bill - HELP!

- Jack

jimmyv13 · #8 Tue, March 10th, 2009, 08:05 AM

I also wonder if it will be different as a Gryphon?

***Power Hungry*** · #9 Tue, March 10th, 2009, 08:23 PM

Keep in mind that the programmer (whether it's Gryphon or Evolution) only accesses the PCM diagnostic codes. This mean that any codes in the ABS Controller, Transfer Case Controller, Body Module, Instrument Cluster, etc. are not read. 4x4 codes are often stored in the ABS Controller and therefore wouldn't be displayed.

As for misfire, those would be stored in the PCM for a number of Key Cycles and should be readily available using the "Read DTCs" function from the diagnostics menu.

Take care.