Fordnatics List Archive

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Mail From: (email redacted) (Scott Fleming x255)

Hello all,

I have a quick question.

My check engin light flutters off and on (on two seconds, off a couple),
during the early morning. I was thinking that maybe it was due
to the change of weather, colder and all. However, maybe not.

Some people have mentioned a ftp site where one can grab a
EEC-IV code document. Can someone point me to this site?

Is one of the sensors bad?

-scottf

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Mail From: chucko (Chuck Fry)

Date: Thu, 3 Nov 94 05:36:35 PST
From: (email redacted) (Scott Fleming x255)

My check engin light flutters off and on (on two seconds, off a couple),
during the early morning. I was thinking that maybe it was due
to the change of weather, colder and all. However, maybe not.

I've seen this on my '89 Mustang, and it always came up as code 31 --
EGR valve or position sensor. It's probably just a clogged EGR valve,
or perhaps a worn-out EGR valve position (EVP) sensor. Either one can
be fixed at home with a few bucks in parts. While Ford doesn't
recommend it, the EGR valve can be cleaned with some carb cleaner and a
toothbrush; all you need is the appropriate gasket, only a couple of
bucks at the local Ford store. The EVP sensor is especially easy to
replace, being easily accessible and held on by 3 screws, but the part
alone will set you back about $30.

Some people have mentioned a ftp site where one can grab a
EEC-IV code document. Can someone point me to this site?

Hmmm, sure have had a lot of requests for this lately. Since everyone
seems to have forgotten, I'll post the charter (which contains this
info) in a separate message.
-- Chuck