P0133 oxygen sensor slow response bank 1 sensor 1 p0171 system to lean bank 1 p0301 cylinder 1 misfire p0302 cylinder 2 misfire p1000 on board diagnostics 2 monitor drive cycle test not complete p1537 intake manifold runner control bank 1 stuck open p1538 intake manifold runner control bank 2 stuck open
Tune up, o2 sensors, catalytic converter, fuel pump all needs to be checked.
Your engine has IMRC (intake manifold runner controls) that are supposed to stay closed under 3000 rpms. Over time they get carboned up and can hang open causing poor performance. Try to manually close the valve, if it immediately opens again the diaphragm might be bad. It would require replacing that IMRC.
SOURCE: 1998 ford windstar 3.8 with code p1538. Is this a
LOOKING IN CODE BOOK.POSSIBLE CAUSE TO YOUR PROBLEM THE IMRC COULD BE STUCK OPEN.OR THE IMRC ACTUATOR IS DAMAGED OR HAS FAILED.ALSO THE IMRC MONITOR SIGNAL CIRCUIT COULD BE SHORTED TO POWER GROUND OR SHORTED TO SIGNAL GROUND RETURN.
SOURCE: Generic code PO171 system 2 lean bank 1 generic
This can be caused by a faulty mass air flow sensor
SOURCE: random/multiple cylinder misfire detected Bank 1
Hi
it sounds like the EGR valve is either dirty or has failed, do you lose any power at all, if not then thats a good sign, remove the EGR and clean with carb clneaer only, leave to dry naturally and dont try to dry it or touch it yourself, they often do get dirty as the job they do is similar to that of a turbo with exhaust gasses.
Hope this helps
Regards
Dan
lastly clean the air mass sensor too, both are easy to do and easy to remove.
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