I6 code332 help
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Junior User
Joined: Nov 2007
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So here's what I found. A few months ago I replaced the canister, before the replacement I had vacuum to egr and codes 332/334. I replaced this and I have code 332 and no vacuum to egr. I switched lines on canister tonight wondering if I messed them up, I now have proper vacuum under all conditions and no code, however the engine acts funny. If I'm going let's say 30 and holding 30 it starts to stumble but if I throttle to gain speed it quickly corrects itself. compression on each cylinder was great plugs wires coil replaced cap checked, wondering why it runs great with a code and everything but egr code but the other way no code but engine acts stupid. Any suggestions as to this
Elder User
Joined: Aug 2012
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Or is there a different code that refrences position in the wording it should throw? Im just saying you may be arguing over nothing.
Fleet Owner
Joined: Oct 2005
Posts: 20,783
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From: Kentucky
Code 332 is infact a refrence to flow, but is it possible that the positional based system will throw this code if the pcm sees a position that would RESULT in low flow?
Or is there a different code that references position in the wording it should throw? Im just saying you may be arguing over nothing.
Or is there a different code that references position in the wording it should throw? Im just saying you may be arguing over nothing.
In this case the PCM is not sensing a change in EGR position, via the EVP sensor, when it commanded the EGR to open.
All of this is caused by referencing code definitions that are not matched to the year and/or model of vehicle you may be working on.
Elder User
Joined: Aug 2012
Posts: 567
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So, there is an older list of code definitions that would be apropriate for this year truck, and would specify a position problem with the EGR? Cool, I need to get one. My Hayes supposedly has codes for apropriate trucks going back to the 80s, but 332 mentions flow so it cant be correct.
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Lead Driver
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From: Rhode Island
The codes amount to the same thing, but it's important to know what you're dealing with hardware wise on your truck.
On trucks that use an EGR position sensor, the computer assumes that if the valve is open, gasses are flowing. But the computer has no way of actually checking the flow.
Now, what confuses the issue is that some earlier Ford vehicles actually used a pressure sensor on the EGR valve (2.9L Rangers come to mind), and Ford used the same code for both system types.
On trucks that use an EGR position sensor, the computer assumes that if the valve is open, gasses are flowing. But the computer has no way of actually checking the flow.
Now, what confuses the issue is that some earlier Ford vehicles actually used a pressure sensor on the EGR valve (2.9L Rangers come to mind), and Ford used the same code for both system types.
Elder User
Joined: Aug 2012
Posts: 567
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Confusing indeed,
Just found a link posted by a membet that seems to have proper code descriptions for older position based EGR systems.
"332 (R,M) EGR did not open/respond during test or if memory code, did not open intermittantly"
Cheers
Just found a link posted by a membet that seems to have proper code descriptions for older position based EGR systems.
"332 (R,M) EGR did not open/respond during test or if memory code, did not open intermittantly"
Cheers
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cheese5.0
1987 - 1996 F150 & Larger F-Series Trucks
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May 26, 2009 08:14 AM