stopped for a rest break,
on ramp too short,
floored it to the metal,
got up to 80 and merged with 75 mph Speed Limit traffic ( 95 plus? )

Check engine light came on....
Last time that happened, the diesel shop told me that the Air Filter minder tripped....
so, I stopped at the next rest area, and unplugged the connector, pushed the rubber button, and started it up, drove a ways, still ON.

stopped again, plugged the connector back in, and the ck engine light went off after it started up.

I am pulling about 6,000 lbs behind me.

 

Don’t disconnect the sensor. Just reset it.

I imagine the sensor is being pulled due to the extra air required for your tune.

 

was using the 25hp Tow tune on the Hydra.
will be more gentle in the future.

 

If it’s just the air filter sensor then it’s nothing to worry about while running WOT in a tune in my opinion. If it continues I’d find a spare and connect the PCM to a dangling sensor. My sensor is not tied into the PCM, just a visual indicator.

Of course it could be something else. Maybe overboost code? Mine CEL would come on for a bit then go back out itself but that was with a different tuner than PHP.

 

I'll bet you got a p1280. Injector pressure high or lower than desired. It will trip whenever the PCM doesn't get the response it expects from the IPR valve for 7 seconds I believe. Basically you were flogging it and either the IPR or the hpop wasn't getting it done fast enough for the PCM. Not uncommon with tuning under hard acceleration. It's when they start popping up just pulling an average grade unloaded at half throttle or less that you might want to worry.

 

Since you have a CTS3, is there any reason you didn’t check what code the computer was saying? It’s not as good as Forscan but it’ll pull most of the basic codes.

 

damn it, I should have thought of that.....
but, I was tired at the end of the day, and that thought slipped my mind.

I commented to my sister, that I have the ForScan app and a Windows laptop in the console, but it is too much trouble, and way too late in the day for that....

I will run that diagnostic in the morning, but with the ck engine light gone, it probably won't show anything.

 

If the light came on and the batteries haven't been unhooked there's code stored and Forscan will show it to you.

 

agreed. if the CEL came on, there will be a code stored in the computer unless codes were cleared.

 

my tools were buried deep, and I was way too tired to fool with the batteries.
but I did think about unhooking the batteries......

so, the code should still be there, will ck to see if the CTS-3 can see it in a bit, after I swallow some breakfast.

you guys are good, it will be the P1280 code for sure....

just did a google and found this:


This code indicates an issue with the electrical component of the injection control pressure (ICP) sensor, and it's a code that will most notably pop up in Ford vehicles.

P1280 indicates that the pressure is too low,
while P1281 indicates that the pressure is too high.

 

sounds like the "overboost" code if you run it up past 24 psi or so without a boost fooler. ran into that a few times back when my truck was tuned before I bought a Riff-Riff OCR. Some tuners can also disable it or so I've heard.

 

here is what it is showing now....
The P0603 code indicates that your Powertrain Control Module (PCM) has failed its own Keep Alive Memory (KAM) self-test. The PCM is a computer in your car that controls essential systems such as the ignition, engine timing, fuel/air mixture, transmission, and anti-lock brakes.


this link on the P1247 is nothing like I have, no smoke, no lack of power...
https://www.ford-trucks.com/forums/1...248-codes.html

P1248
That code means that the PCM isn't detecting boost. It gets it's signal from the MAP sensor, and depending on how you have your boost gauge ...





now that the ck engine light is out,
it is running perfect like it always has.

just pulled these codes a few minutes ago, in the motel parking lot.
no idea of how long they have been there?

 

Then p0603 is pretty common for chipped trucks.

The other 2 would most likely be from the recent diagnostics for your filter minder but that's only an assumption. They are both related to a low or no boost, so I can't see how they would trigger while you were giving her the lash. Unless you blew a boot maybe. I'd inspect the MAP sensor connector is fully seated, they can be difficult some tomes to get locked in. I'd probably give the boots a glance too just for piece of mind, but I'd suspect if you blew a boot you wouldn't need the PCM telling you so.

 

P0603 is nothing. You get that one every time you kill power to the PCM and reconnect it.

Is there a pigtail or sensor for the filter minder on some trucks? Mine didn't and I just got rid of it with the Riff Raff 6637 filter pipe.

Did it cut power suddenly when the light came on? That's what happens when it trips the overboost code and you get the CEL on briefly.