Got codes...now what?
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Junior User
Joined: Nov 2009
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From: Colorado
Got codes...now what?
Been getting an occasional check engine light on my 94 460 F250; code reader is bringing up 332 and 558. Insufficient EGR flow and EGR valve regulator solenoid circuit fault...so, where do I go from here?
Thx
Thx
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
Well the solenoid controls the valve and it can't be made bad by the valve so I would start with the solenoid circuit and if that don't fix it change the EGR itself. Then again I don't know how you system is set up. My Crown Vic, the solenoid and the circuit are all one item, but I have seen them separate.
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
It is the electric component that is a vacuum valve between the EGR and it's vacuum source. My 1984 truck does not have one but my 1993 Crown Vic does as does my 1999 4.0L Ranger and is located right next to the EGR valve in both cases
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Junior User
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From: Colorado
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Junior User
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From: Colorado
Hey Bear, sorry for just getting back....replaced the EGR vacuum solenoid. Haven't checked the codes yet but no, CEL so far.
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Junior User
Joined: Nov 2009
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From: Colorado
CEL coming back on after acceleration. Codes same as before; 558, 332 except two new ones now 536 and 334. Anyone want to take a shot at deciphering the problem? All seem to be EGR related except 334, brake on/off circuit not activated during KOER. Thx