qwebby1

I just replace my 2.3L Engine with a used engine with 44K miles on it, this has a Auto Tranny in it. After replacing it and starting it up, it runs smoothly. when i put in gear to take off it shutters hard at about 20mph or so. I can push the shift a little further toward the next lower gear and it quits and runs ok. The second time i ran it the check engine light came on and it gives me a code of P1516-Intake Manifold Runner Control Input Error (Bank 1). What can I do and/or how to fix this??? Any help would be good.
Thanks,

Bert

Make sure the wires are all hooked up and that the runner can open with nothing in the way.

Code P1516-Intake Manifold Runner Control (IMRC) system did not respond properly to PCM command. The PCM expects to see the IMRC switch open when the IMRC is opened during high engine load or high engine speed operation The IMRC switch did not open. Testing: Check the IMRC for normal operation as described. Check for a shorted switch or short circuit in the
IMRC switch wiring.

__________________
Bert

qwebby1

Will that cause the shutter in the acceleration also??? Or is that another problem I need to take care of also???

Bert

Depends on the load and RPM. It could also cause the shudder.

__________________
Bert

djames28

I'm not familiar with P1516, but
a google of "ford P1516" found this at JustAnswer:
ok you have the cable actuated set up, follow the cable to the solenoid, and unhook the cable, see if when you unhook it the cable is able to move the piece on the intake manifold easily, the solenoid is the faulty component, but just make sure it did not burn itself out trying to move a stuck runner in the intake. Replace the solenoid for the pass. side bank of cylinders, that is the #1 bank, and the problem will be fixed.

Read more: What is the fix for a P1516 (Intake manifold run... - JustAnswer

Incidentally, I have a Civic Hybrid that "shuddered" on acceleration from dead stop.
Honda has a specific tranny fluid requirement that is not matched by "compatible" ATF.
I had to refill the tranny with the genuine stuff. A second refill was required about 3000 miles later to further "clean out" the unknown AFT. That eliminated the shudder behavior in my case.