Got some codes to fix...

Reply Subscribe

Thread Tools

Search this Thread

May 24, 2009 | 09:46 PM

boggerted

Thread Starter

Posting Guru

Joined: Mar 2007

Posts: 1,119

Likes: 0

Got some codes to fix...

I pulled codes on my 89 F350 to try and diagnose my lack of power. I did plug wires, cap and rotor to try and remedy the problem and it made a good bit of difference, but it still feels like i=s either running rich or missfiring. I got codes 33 and 129. What do these mean? I think 33 has something to do with the EGR, but I dont know what to do to solve these issues. thanks

May 25, 2009 | 04:38 AM

Lazy K

Post Fiend

Joined: Jan 2005

Posts: 8,402

Likes: 10

I`m no expert but I think you need to check again. As far as I know your codes should all be two digit.

May 25, 2009 | 04:54 AM

andym

Post Fiend

Joined: Mar 2002

Posts: 19,402

Likes: 38

From: Bonita Springs FL

Yes, you can never have two- and three-digit codes. Read them again or buy a code reader.

May 25, 2009 | 10:34 AM

boggerted

Thread Starter

Posting Guru

Joined: Mar 2007

Posts: 1,119

Likes: 0

ok then the 129 is code 29. I just thought that code wasnt applicable because it deals with the vss and my speedo works fine.

May 25, 2009 | 10:54 AM

Conanski

FTE Legend

Joined: Jun 2006

Posts: 31,930

Likes: 1,499

From: Ottawa, Ontario

33 is EGR valve opening not detected. Check the vacuum lines first, then test the valve to see if it moves with vacuum and that the output of the position sensor changes as expected. If all that checks out the EVR may be the problem, it's the solenoid over by the coil that controls vacuum to the valve.