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Old 10-21-2012, 02:59 PM   #1 (permalink)
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Default my 93 SHO has cel on after diving for a few min?

ok i got my codes i have code 332, and code 632. what do they mean.

and why is my cel coming on after i drive a while but never when im sitting?

how to clear all codes?
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Old 10-21-2012, 04:29 PM   #2 (permalink)
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Google is your friend. 332 is egr flow insufficient, 632 is a transmission problem. Is your OD working correctly?

No idea why the CEL does that. Same thing happens in my old 93 ranger. Goes on and off intermittently. . . Someone probably knows.
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Old 10-21-2012, 05:06 PM   #3 (permalink)
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It takes a certain time for the EEC-IV computer to do checks which is why it takes a few minutes for them to appear. Have fun with that EGR code. Just make sure the EGR isnt blocked up by buildup.
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Old 10-21-2012, 05:56 PM   #4 (permalink)
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If the troubles come & go, so will the CEL. My 94 CEL behaved this way when its bank-2 O2 sensor got lazy.

The EGR code suggests its not opening, could be dirty & carboned up, leaking diaphragm, poor fitting vacuum line from the computer controlled vacuum switching valve that sends vacuum to open the EGR valve, the switching valve itself, or its electrical connector pins/sockets. The EGR valve itself is rarely bad, unless its rusty & falling apart, or the engine burns a lot of oil & its all carboned up inside. The problem is usually with the EGR control system components like the VSV, DPFE sensor, or vacuum lines, so have a close look at the EGR components.

From the tranny code I assume you have an auto tranny, as its an OD switch cancel test code.
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Old 10-21-2012, 07:56 PM   #5 (permalink)
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ok so when i ran my goos test this is a list of all i did, because i did not push the O/D button during the test the manual that i read last night said nothing about it!

blinked once and i quickly done these things!
wheel left.
wheel right.
shifter to Neutral.
brake.
floor gas only for second to raise rpms.

i never touched O/D button could this be why i got code 632?

and i know where the EGR valve is and how to get it off but how do i clean it and check the line to see if the line is clogged! somebody said diaphragm that is rubber so cannot use b12 carb cleaner! what to use to clean it?
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Old 10-21-2012, 08:46 PM   #6 (permalink)
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Disconnect the EGR vacuum line at the VSV & apply vacuum with your mighty vac or the like & watch to see if the EGR valve moves & will hold vacuum.

No need to clean the vacuum lines or the EGR diaphragm. Use a wire brush on the egr valve side where the exhaust gasses circulate. Also make sure the line to the intake/throttle body location is clear of carbon.

Apply vacuum to the VSV to see if it'll hold, or is leaking, as it's normally closed unless the computer sends an electrical pulse to the VSV to open its vacuum switching valve.

The DPFE sensor is a common problem part, especially if the engine uses oil, so if the engine is using oil, check its exhaust manafold line from below the EGR valve to the DPFE sensor, to see if its blocked with carbon.

Could be on the tranny code if your scantool doesn't have a test for it. If your going through a vehicle self test using the CEL, maybe try switching the OD off during the KOEO test.
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Old 10-21-2012, 09:09 PM   #7 (permalink)
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will the egr valve cause my cel to come on only after i have been driving for a few minutes?

and will cleaning it fix my problem.

ran the test again and pressed O/D button this time, all i got was code 332 twice and it didnt throw any more codes, ran the test 2 more times to be sure! and all i get is 332

so if i fix my egr valve and run it again, then the cel should stay off right?
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Old 10-21-2012, 10:44 PM   #8 (permalink)
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Quote:
Originally Posted by tylerdahl View Post
will the egr valve cause my cel to come on only after i have been driving for a few minutes?

and will cleaning it fix my problem.

ran the test again and pressed O/D button this time, all i got was code 332 twice and it didnt throw any more codes, ran the test 2 more times to be sure! and all i get is 332

so if i fix my egr valve and run it again, then the cel should stay off right?
OK, good feedback about the tranny code.

On the EGR code, have you tested/inspected the EGR valve, VSV, DPFE sensor & interconnecting vacuum lines, hoses & their connections as suggested above???? If so, what did you find???? Right now you haven't provided enough feedback on your EGR trouble shoot to make an informed guess on if cleaning is needed.
So right now we don't know why the computer thinks the EGR valve isn't opening, thus there is no way to guess if cleaning would likely fix it & clear the code.
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Old 10-22-2012, 12:25 AM   #9 (permalink)
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The SHO intake has a couple of tubes that are cast into the bottom of the intake. These tubes feed the EGR and can easily get clogged. You will need to remove the intake, remove the hex set screws at the end of each tube and clean the them. This will probably fix your problem.
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Old 10-22-2012, 10:21 PM   #10 (permalink)
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ok an update i checked the egr valve and it is working not clogged, the tube is not clogged (pulled it off) my egr also holds a vacuum and stays shut, all components are working.

and ^^ hex screws or tubes i see nothing of that nature on my intake.

are we all talking about the same part, posting picture!
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