I have a ford with a 3.8L engine. There is a vacuume controlled butterfly
valve on the intake manifold that opens and closes based on engine RPM.
The system is called Intake Manifold Runner Contorl (IMRC). Its supposed
to give better torque and smoothness by adjusting the characteristics of the
intake manifold. Mine seems to have a leak in the rubber manifold, so it no
I haven't noticed any difference in the performance of the engine, but it
does turn on the check engine light with an error code 1537 & 1538 ( bank
1&2 stuck open ).
Ford wants $350+ just for the part!
Will the engine still pass and ODB2 emission test with this code?
Is there any way to "fool" the computer to not give the error code?