Code 11 after fixing Code 52

MK3_CT

New Member
Apr 4, 2013
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Lacey, WA
So I have an 89 Turbo, and I've done the rewire of the knock sensors a few months back. A few days ago I had code 52 pop back up again, so I figured I'd get a new knock sensor. After installing it, and pulling EFI fuse, code 52 was gone for a FULL DAY. Now I have code 11. I've sanded my grounds and made sure they're nice and tight, but I'm still getting the code. So my question to you guys, is code 52 and 11 related? The code was never there before, then out of nowhere, bam. Also, could I "jump" a temporary ground from under the Intake Manifold where the ECU grounds are to the negative battery terminal just to see if thats what it is? All help will be greatly appreciated. PS: Grounds I've sanded are the ones that go from the Negative terminal, to the right side of the fuse box, the one from the negative terminal to the block, and the ones for the ECU on/near the Intake manifold.
 
Oct 11, 2005
3,816
16
38
Thousand Oaks, CA
I'd start by carefully examining the O2 sensor wiring over the exhaust manifold area. If the wire is damaged and the heater wire touches the engine it will short the EFI circuit. This usually pops the fuse, but it depends how good a contact it actually makes.
 

DeMoN2318

New Member
May 24, 2012
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Arizona
Take out our EFI fuse, blow it off and blow into the EFI fuse port...then reinstall the fuse...

Had the exact same issue and this fixed it...
 

DeMoN2318

New Member
May 24, 2012
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Arizona
I wasnt suggesting the fuse was bad, I was just thinking that its not making a good connection...figured you had several others and could just try one really quick.
 

DeMoN2318

New Member
May 24, 2012
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Arizona
MK3_CT;1961895 said:
Well I bought a new fuse and tried it, no luck. They took it back at least....

Maybe we are talking about different fuses but the ones I am thinking about are like $0.20 each...
 

DeMoN2318

New Member
May 24, 2012
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Arizona
jetjock;1961941 said:
Blowin' on the fuse. For sure that mask ain't workin'.

OP: As long as 11 is there other codes you may have will not be shown.

As stupid as it sounds, it worked to clear an 11 for me before
 

jetjock

creepy-ass cracka
Jul 11, 2005
9,439
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Redacted per Title 18 USC Section 798
It's worrisome you don't appear to realize how stupid it does sound. Not to mention correlation does not imply causation. Cycling the fuse is what fixed it. Know what asperities are? Funny the OP actually did it though...
 

Wildfire007

Member
Dec 15, 2010
139
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Cullman, Alabama, United States
LOL! While what jetjock is saying is funny, the funniest part to me is how the OP acts like a 15 Fuse is like 20 dollars. You can by a pack of them at the gas station for next to nothing. I know the economy is bad but damn.