Code meanings
Thread Starter
|
Senior User
Joined: Oct 2011
Posts: 142
Likes: 0
From: CT
Code meanings
I just did a self test on my 88 f250 351w and got some codes that i dont know the meaning of. I got codes 21,24. ECT out of self test range .3-3.7 volts.ACT sensor out of self test range .3-3.7 volts. I dont know what this means and i was wondering if somebody could provide some insight on how to fix this.
Tuned
Joined: Oct 2012
Posts: 440
Likes: 8
You'll get the ECT code if you test when the truck isn't up to operating temperature. If the truck was cold when you ran the codes, don't worry about the ECT one. ACT is Air Charge Temperature, that's the sensor that senses the temperature of the air going into the engine. That one would be caused by a bad ACT sensor or wiring issue.
Erase the codes and then go drive it for about 10-15 minutes and dump the codes again. I doubt you'll get the ECT code, but if you get the ACT code again it's either time to replace the sensor or start checking wiring.
Erase the codes and then go drive it for about 10-15 minutes and dump the codes again. I doubt you'll get the ECT code, but if you get the ACT code again it's either time to replace the sensor or start checking wiring.
Cargo Master
Joined: Jul 2009
Posts: 2,541
Likes: 54
From: Des Moines
Thread
Thread Starter
Forum
Replies
Last Post
90fordf-250
1987 - 1996 F150 & Larger F-Series Trucks
9
Jan 2, 2012 10:34 PM
danield
1987 - 1996 F150 & Larger F-Series Trucks
3
Mar 5, 2008 09:43 PM
