P1537 DTC?

hi ,
the code you stated is correct imrc , what we need to do is find out if yours is cable operated or electronic , and yes this will cause several problems , if its electronic you will need a dvom to check it

lemme know

Is there any way you could send me some diagrams, or at least the general location of what I am looking for? I am in no means a mechanic, just an engineering student trying to avoid taking her to the garage. Thanks in advance for all of your help.

the irmrc is right on the manifold , if you look close you should see the rod peeking out of either end of the intake , follow it to the control unit and or cable

I believe it is cable operated. I am attempting to attach pictures so you can verify that I am correct.

its really hard to tell from that angle check right behind the throttle body and look for a cable from your pic it would be to the left of the throttle cable and back

Here are a couple more pictures. I'm sorry that I'm making it so difficult to help me, I'm just not very knowledgeable.

ok i found a parts listing in my software , #7 is the actuator , see the vacuum hose running to the rear of the intake , there should be an arm back there to open and close the runner , check for vacuum on that side and for binding, and its no trouble , im here to help

The hose that goes from the actuator to the back of the intake terminates, and then there is set of electrical wires connected at the same point. Also, it feels like there is a crack in that hose when it splits from the actuator.

ah ha , losing vacuum , put your finger over it while its running and see if its pulling vacuum , and replace that hose , just take it up to the parts store and match it up , this may be your whole problem , wouldnt that be nice a 2 dollar fix , lemme know
Jim

I replaced that hose, and disconnected my battery to reset the trouble code and it hasn't come back on since. You have to love a 72 cent hose fixing your problem. Thanks so much for your help.

My truck all of a sudden has this problem code. The idle is a little shaky.

Problems prior to this have been the Overdrive light flashing on and off and the gears kicking a little from 2nd to 3rd..also m truck does not go to fourth gear.these problems are unrelated i believe (have been going on for over 2 years) but figured i would give all information

15) DTC P1512, P1513, P1516-P1520, P1537 Or P1538
DTCs P1512, P1513 and P1519 indicate IMRC or IMSC may be stuck closed. KOEO or Continuous Memory self-test failed when IMRC or IMSC monitor circuit signal exceeded expected calibrated range with IMRC or IMSC activated. Possible causes are:
Faulty Vacuum Hoses
Faulty Vacuum Solenoid
Faulty Vacuum Actuator
IMRC Or IMSC Actuator Cable, Lever Or Gears Binding Or Seized
Cables Improperly Routed, Binding Or Seized
Faulty IMRC Or IMSC Actuator
Damaged Or Disconnected IMRC Or IMSC Housing Return Springs
Lever Return Stop Obstructed Or Bent
Lever Wide Open Stop Obstructed Or Bent
IMRC Or IMSC Monitor Circuit Open Or Shorted To VREF
IMRC Or IMSC SIG RTN Circuit Open Or Shorted To VPWR Or GND
IMRC Or IMSC VPWR Circuit Open

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