I have a Powerstroke 6.0L (2003) on the ol' Excursion.
I replaced injector #8 (drivers side closest to firewall). (by way of background- I broke the connector to the injector #8 when I replaced the ICP so I had to replace the #8 injector).
It started fine after about 10 seconds of cranking. I let it idle for about 5 minutes and then went for a test drive. P1000 code appeared which I expected.
P0281 also showed up after about 5 minutes of driving and wouldn't clear. I pulled over to the side of the road, shut the engine off, waited a few seconds, and started it again. I could then clear the P0281. I drove another 15 miles at around 55 mph, with no code problems, and then went back to slow driving when the P0281 appeared again. I stopped, shut the engine off, and then started again. I could clear the code again.
It seems with high speed driving the P0281 doesn't appear. When I stop at a light then it does (but not always). It seems just before the code appears the engine has a slight increase in RPM (I can't say for sure it does as it's a quick change, i.e. "sound" of change in idle speed then the code appears.
Believe it or not...the engine appears to run fine- it seems nice and smooth. ECT, EOT are within 8 degrees of each other (about 194 degrees). EGT's are typical- 300 to 700 degrees. Idle is about 600 rpm (I just watch the dash gage for rpm.
Do you men have any idea what the heck is going on with this thing?
I replaced injector #8 (drivers side closest to firewall). (by way of background- I broke the connector to the injector #8 when I replaced the ICP so I had to replace the #8 injector).
It started fine after about 10 seconds of cranking. I let it idle for about 5 minutes and then went for a test drive. P1000 code appeared which I expected.
P0281 also showed up after about 5 minutes of driving and wouldn't clear. I pulled over to the side of the road, shut the engine off, waited a few seconds, and started it again. I could then clear the P0281. I drove another 15 miles at around 55 mph, with no code problems, and then went back to slow driving when the P0281 appeared again. I stopped, shut the engine off, and then started again. I could clear the code again.
It seems with high speed driving the P0281 doesn't appear. When I stop at a light then it does (but not always). It seems just before the code appears the engine has a slight increase in RPM (I can't say for sure it does as it's a quick change, i.e. "sound" of change in idle speed then the code appears.
Believe it or not...the engine appears to run fine- it seems nice and smooth. ECT, EOT are within 8 degrees of each other (about 194 degrees). EGT's are typical- 300 to 700 degrees. Idle is about 600 rpm (I just watch the dash gage for rpm.
Do you men have any idea what the heck is going on with this thing?
