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SOURCE: Ford windstar OBD II code P1537/38, P0171 and P0420
It could all be related.P1537/38 are the intake manifold runner controls are stuck open.They are controlled by vacuum solenoids.The P0171 is bank one of the engine is running lean,usually caused by a vacuum leak, P0420 is catalytic converter efficiency code. The computer monitors the switch rate of the front 02 sensors and compares it to the switch rate of the rear 02 sensors to tell if catalytic converter is doing its job. Now if the front 02 is not switching properly then this will cause this test to fail and set this code.
Look on bottom section of the intake manifold at the back of engine(where tranny bolts up) you should see the vacuum motors there on the intake,these are the control motors for the intake manifold runners.Make sure the vacuum lines are hooked up and lines are not leaking. Also you will see a lever from it to intake make sure they move and are not binding.
SOURCE: Two engine codes. What is the problem and name of
they are a ford specific codes they both are the same also :intake manifold runner control stuck open---the control is in the upper section of the manifold it may be stuck by sludge ,debris or carbon can try a carb spray cleaner if dont work may have to have repaired or replaced good luck
SOURCE: I have a 98 ford windstar with check engine light
These are all related:
P1537 and P1538 are BOTH:
Intake Manifold Runner Control Stuck Open
P0171 is Lean Bank #1
P0174 is Lean Bank #2.
On the front of the Intake Manifold there are Plastic Clips. The Clips are currently broken and need to be replaced. Because these are broke the Computer is registering too much Air or not enough Fuel = Lean.
You should be able to purchase these at any auto parts store (call ahead for availablility).
After you replace these, all the Codes should disappear.
Let me know if this helped, or if you have addtional information or questions. Feel free to contact me at FixYa.com!
SOURCE: problem car reflects code P1537
Intake manifold runner control problem. IMHO, this is a completely unnecessary system. Is often problematic. check out this link for more info: http://www.carcomplaints.com/Ford/Windstar/1996/engine/engine_codes_P1537_and_P1538_IMRC_stuck_open.shtml
SOURCE: my 98 ford windstar is
Codes p1537 and p 1538 are codes for a faulty IMRC valve. They are located on the lower intake manifold.
Intake Manifold Runner Control (IMRC), Vacuum Control
Intake Manifold Runner Control (IMRC)
As for the misfire codes, Check out the upper and lower intake gaskets. Since you have to take the upper intake off for the imrc valves its just a few more bolts to remove the lower intake. The intake gaskets are rubber seals. When the engine is cold the seals shrink and causes a misfire. when the engine warms up the seals expand and the misfire goes away.
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