Trouble Code KOER 33 ideas
Elder User
Joined: May 2007
Posts: 754
Likes: 1
From: Solon, Ohio
When I first got my truck a few months ago, I was getting 33 code.
I found the EGR to be stuck and cleaned and freed it up.....still 33.
I cleaned out the EGR Control Solonoid and cleaned up its contacts.....and the EGR started to work but........still the 33.
I nicked/stripped little spots on the three wires that go to the EVP and measured the three from ground. One was 0 volts (ground)......one was 5.0 volts (from the PCM)......and the other was .83 volts (EVP output).
I rechecked the EGR and confirmed that it was fully closing and seating properly when closed.
I then installed a rubber grommit between the EGR and EVP to act as spacer and still maintain airtight integrity of the EGR. I tightened eack of the three screws a little at a time keeping the gap between the EGR and EVP even. When it got to about .050 " I measured .43 volts on the output wire, so I fired her up and it's run great ever since. No more code and passed eCheck.
The EVP output has to measure less than .6 volts from ground with the key on and engine not running.
I found the EGR to be stuck and cleaned and freed it up.....still 33.
I cleaned out the EGR Control Solonoid and cleaned up its contacts.....and the EGR started to work but........still the 33.
I nicked/stripped little spots on the three wires that go to the EVP and measured the three from ground. One was 0 volts (ground)......one was 5.0 volts (from the PCM)......and the other was .83 volts (EVP output).
I rechecked the EGR and confirmed that it was fully closing and seating properly when closed.
I then installed a rubber grommit between the EGR and EVP to act as spacer and still maintain airtight integrity of the EGR. I tightened eack of the three screws a little at a time keeping the gap between the EGR and EVP even. When it got to about .050 " I measured .43 volts on the output wire, so I fired her up and it's run great ever since. No more code and passed eCheck.
The EVP output has to measure less than .6 volts from ground with the key on and engine not running.
Last edited by netscaner; Jul 20, 2007 at 09:29 PM.
Thread Starter
|
Elder User
Joined: Oct 2006
Posts: 843
Likes: 1
From: Redmond, WA
Originally Posted by netscaner
When I first got my truck a few months ago, I was getting 133 code.
I found the EGR to be stuck and cleaned and freed it up.....still 133.
I cleaned out the EGR Control Solonoid and cleaned up its contacts.....and the EGR started to work but........still the 133.
I found the EGR to be stuck and cleaned and freed it up.....still 133.
I cleaned out the EGR Control Solonoid and cleaned up its contacts.....and the EGR started to work but........still the 133.
Originally Posted by netscaner
. nicked/stripped little spots on the three wires that go to the EVR and measured the three from ground. One was 0 volts (ground)......one was 5.0 volts (from the PCM)......and the other was .83 volts (EVR output).
I rechecked the EGR and confirmed that it was fully closing and seating properly when closed.
The EVR output has to measure less than .6 volts from ground with the key on and engine not running
I rechecked the EGR and confirmed that it was fully closing and seating properly when closed.
The EVR output has to measure less than .6 volts from ground with the key on and engine not running
By EVR (as per www.Fordfuelinjection.com) that would be the vacuum regulator on the passenger side of the motor. I'm assuming here you mean the EVP sensor.
Originally Posted by netscaner
I then installed a rubber grommit between the EGR and EVR to act as spacer and still maintain airtight integrity of the EGR. I tightened eack of the three screws a little at a time keeping the gap between the EGR and EVR even. When it got to about .050 " I measured .43 volts on the output wire, so I fired her up and it's run great ever since. No more code and passed eCheck.
Not trying to bust your chops at all...I just want to clarify. I've found that part stores, Ford parts, wrecking yards, all use these interchange these acronyms often. It gets all parties confused.
I am sticking with the acronyms from www.fordfuelinjection.com
Thanks again
Mike
Thread
Thread Starter
Forum
Replies
Last Post
boggerted
1987 - 1996 F150 & Larger F-Series Trucks
9
May 18, 2010 11:25 AM
BigTexan
1983 - 2012 Ranger & B-Series
9
Jun 6, 2009 12:14 PM
