Code question

Reply Subscribe

Thread Tools

Search this Thread

Apr 19, 2002 | 03:06 PM

bgblktruk

Thread Starter

Tuned

Joined: Mar 2001

Posts: 383

Likes: 6

From: California

Code question

Hey guys I have a question about some codes that came up for my '88. I got codes 12,44,52. The memory had no codes these are all during the KOER test which I suppose is obvious but hey every little detail may help. Any ideas as to why the high idle code, could that be because the engine has a bad cylinder, because the 8 cylinder has no compression? As for the 44, that is the code I was really wondering about. It says its a thermactor air system fault and I was wondering if there is a way to isolate that problem, or at least wondering where to start looking. Lastly I wanted to know if the power steering pressure switch signal open is a problem or if I needed to turn the steering wheel while the computer performed its test. All ideas and experience is appreciated. Thanks and keep those Fords running strong.

Apr 19, 2002 | 04:22 PM

adelyser

Elder User

Joined: Oct 2001

Posts: 974

Likes: 0

Code question

There is a period in which you must step on the brake and turn the steering wheel for the computer to test those parts. If you didn't turn the steering wheel, that's your problem there. Also, did you let the engine warm up to operating temp before running the test? If not, that could be your thermactor air problem and the high idle problem.

Apr 19, 2002 | 06:41 PM

bgblktruk

Thread Starter

Tuned

Joined: Mar 2001

Posts: 383

Likes: 6

From: California

Code question

Thanks for the response I had assumed that the power steering code had to do with not turning the steering wheel. As for the truck being warm, I had driven it to the parts store and back to the house, gave it a chance to cool down and then, did as per the instructions to warm the engine up. Again thank you and if you have any other ideas about the thermactor system or ideas in general let me know.

Apr 19, 2002 | 06:55 PM

Big JOE

New User

Joined: Jan 2002

Posts: 18

Likes: 0

Code question

FYI:

February I had the same problem with BRUTUS. I removed the inlet pipe to the EGR valve and it was full of carbon and completely clogged to the point were I had to replace the EGR valve. I sprayed the inlet pipe with carberator cleaner and blew it out. My gas mileage increased and the idle speed improved dramatiacly. I would also check my vaccum tubing and verify no leaks.

Apr 19, 2002 | 08:06 PM

bgblktruk

Thread Starter

Tuned

Joined: Mar 2001

Posts: 383

Likes: 6

From: California

Code question

Thanks for the suggestion the egr tube on this model is difficult to extract to clean, I know because I had to replace it due to the huge hole. I have to take off the valve cover to see why my cylinder is dead so if I have to remove the head I will be sure to clean the intakes, the throttle body, the egr tube, and just about everything else I can get a wrench or wire brush on. I appreciate the suggestion and I will be sure to check the vaccum lines. Which brings up another good question, is anyone aware of a place I can get a schematic for the entire vaccum line system? I am looking for something a little more in depth than the sticker on the emission tag. My tag is unclear and was just thinking it would be a nice thing to have. Well Im glad there is some good help out there. I would like to check the entire thermactor system and am hoping someone can help please let me know if you've seen any good posts regarding these topics.

Apr 19, 2002 | 08:32 PM

Big JOE

New User

Joined: Jan 2002

Posts: 18

Likes: 0

Code question

FYI, The Chiltons Bronco repair manual has a fairly good description and schematic of the vaccum lines. However, I allways see the VECI labels still on fords at the junk yards that I slum around at when I am collecting miscellaneous parts. Go to the junk yard and find a vehicle with the same engine as yours and pull the VECI tag.

Good luck.