Thread: S500 check engine light ERG valve
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Old 10-05-2001, 02:02 AM
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JimF JimF is offline
'94 S500: only 793 sold!
  
Join Date: Mar 2001
Location: San Diego, CA
Posts: 1,933
. . have you checked the
EGR switchover valve (Y27) or maybe the check valve (128) that drives the EGR valve (B9)?

Check my page, menu #1, look at the block diagram. Y27 and 128 valve are behind the right head light.
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'94 S500 Cpe

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