Just had electronic throttle body replaced, now getting P2196 and P2198 codes

Question

I have a 2010 Ford Escape with 118,000 miles on it.  I just had the recall/warranty work done to replace the throttle body control, which went bad last week.  Today, the check engine light came on, and two codes were initiated, which I pulled with my code reader -- P2196, and P2198.  I read a prior question on this website about these codes, where Reynaldo answered, and was discussing how the PCM is trying to compensate for a lean condition.  Reynaldo said a possible solution to these codes is to have that throttle body replacement done on the vehicle; my question is, could replacing that throttle body CAUSE those codes to appear?  Could waiting awhile for the vehicle's computers to "adjust" to the new throttle body eventually balance things out, such that the rich/lean condition is handled by the computer?  I cleared the codes, to turn off the check engine light.  I wonder just waiting this one out, and seeing if the codes/engine light return, might be a reasonable course of action given the new throttle body that was just installed roughly 75 miles ago.

Answer 1

P2196 and P2198 these code are both rich  command trying to correct for a overly lean condition. The throttle body recall . Get that out of the way, The engine can stall , The worse condition of the throttle body is when the ECM commands a FMEM (failure mode effect management )  this is a limp home mode with limited throttle .. All vehicle are built by robots, each year  make and model inherits a pattern failure. and this is where TSB are necessary part of repair, beside the Recall which is the priory the TSB for lean evap code may have n ot been posted to you prior response, should of had 2 one a recall and the other for the lean code here the lean code TSB. This is the purge valve which is commonly seen even on the Mazda when you do a tight turn you may be able  feel a slight misfire event occurring, And NO there is NO balancing out the situation .The  CK ENG LT will return. Unfortunately it not a Recall.

TSB 12-3-19

03/30/12

MIL LAMP ON WITH DTCS P144A, P2196, P2198
AND/OR P1A0C - BUILT ON OR BEFORE 3/4/2011

FORD:
2010-2011 Fusion
2009-2011 Escape

LINCOLN:
2011 MKZ

MERCURY:
2010-2011 Milan
2009-2011 Mariner

This article supersedes TSB 11-11-28 to update the Title, Issue Statement, vehicle model lines, Service Procedure and Part List.

ISSUE
Some 2009-2011 Escape, Mariner, 2010-2011 Fusion, Milan and 2011 MKZ vehicles built on or before 3/4/2011 may exhibit a leaking or stuck under hood evaporative emission purge valve. This fault will turn on the malfunction indicator lamp (MIL) and set diagnostic trouble code (DTC) P144A, P2196, P2198 and/or P1A0C.

ACTION
Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

1.	Are any of the following DTCs P144A, P2196, P2198 and/or P1AOC present? a. No - Do not continue with this article, refer Powertrain Control/Emissions Diagnosis (PC/ED) Manual for normal diagnostics. b. Yes - Proceed to Step 2.
2.	Remove the evaporative emission canister. Refer to Workshop Manual (WSM), Section 303-13. Inspect canister for liquid fuel by turning the canister over and watching for signs of liquid fuel exiting the canister. Are there any signs of liquid fuel present? a. No - Proceed to Step 3. b. Yes - Replace the evaporative emission canister. Refer to WSM, Section 303-13. Proceed to Step 3.
3.	Did the evaporative emissions system leak test pass as explained in WSM, Section 303-13? a. No - Refer to the WSM, Section 303-13 to locate the leak. Repair as needed. b. Yes - Replace the under hood evaporative emission canister purge valve. Refer to WSM, Section 303-13.