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Check engine light is on
1999 Ford Windstar

Check engine light is on

(1999 Ford Windstar)
Codes indicate
IMRC stuck open
EGR valve failure

I have 110,000 miles on vehicle
1 answer & 0 comments
Popular Answer
on July 24, 2009
Dear Rwestonprinceton,

The IMRC code refers to the Intake Manifold Runner Control system. This system provides variable intake manifold capacity for different operating conditions. It has a few components to check and inspect. Also, the code is usually left bank or right bank specific.
The EGR Valve Failure is usually a more specific code, such as EGR flow too much/ too little ( P0402/P0401 ) or EGR Valve Position Sensor fault ( could be a P0335 ). You need to have someone who is a sharp diagnostic tech read and trace down both of these code. There is no '1 part' to fix either of these issues in my experience on the Ford Windstar. Best of Luck!
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General Diagnosis
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on July 24, 2009
Dear Rwestonprinceton,

The IMRC code refers to the Intake Manifold Runner Control system. This system provides variable intake manifold capacity for different operating conditions. It has a few components to check and inspect. Also, the code is usually left bank or right bank specific.
The EGR Valve Failure is usually a more specific code, such as EGR flow too much/ too little ( P0402/P0401 ) or EGR Valve Position Sensor fault ( could be a P0335 ). You need to have someone who is a sharp diagnostic tech read and trace down both of these code. There is no '1 part' to fix either of these issues in my experience on the Ford Windstar. Best of Luck!
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