Calling all code translators

[NiNeTy Fo SHO]

The Check Engine light seems to come on in my car, so I decided to pull the codes. The check engine light comes on when the car hits the normal range and not before if that matters...

Here are the codes from the KOEO test and the description from shotimes:

1) 172 - HEGO sensor indicates system lean (RH).

2) 212 - IDM circuit failure / SPOUT circuit grounded.

3) 214 - CID circuit failure.

4) 332 - EGR valve opening not detected.

Here are my thoughts for some of them...

For the 172, I replaced the O2 sensor right by the starter...I am thinking it may be the other O2.

For the 214, I guess I should replace the CID sensor?

For the 332, I replaced the EGR valve, but it obviously is still giving a code

For the 212, no clue.

Any and all advice is always appreciated

 

[95SHO32]

hey here are the codes per my snap-on scanner

1)172 indicates that hego sensor is not switching, stays low, excess oxygen content,lean mixture

ck for vacum leaks and air leaks like loose air intake hoses betwwen air meter and throttle body.inspect egr,and pcv system for operation "my note'this also relates to code332. o2 range is 100mv to 900mv " 100 lean 900 rich " "o2 should be switching from over then under 500mv give or take a little.


code 212 I'm working on this one but its not in any of my books or scanner


code214 take the sensor off and make sure its not damaged or melted, make sure to mark its location.


code 332 first off use the search engine here they have plenty of info on this code. also clean out the air ports in the manifold hint behind the pipe plugs and they are very tight.use compressed air and engine cleaning/oil galley brushes they come in different sizes. if those are clean" not likey" let me know you can hit me up with pm.
you could also have failed DPFE sensor but lets ck very else first , this sensor about $160 and is only aval @ Ford

 

[95SHO32]

Per the Charles Probts Ford Fuel Injection &eec book, code 212, glossory defined as IDM ignition diagnostics monitor. a continuous monitorof the ignition input to the ECC-IV control module used to detect intermittent ignition faults. This code relates to code 214.

 

[Racer X]

Which ones are memory codes, and which are KOEO codes?

 

[rangerj]

The 172 and 332 codes are Running AND Continuous Memory codes. The rest are Continuous Memory codes.

The 172 code indicates a lack of switching from rich to lean and back, continuously. Rather, the O2 sensor is staying in the lean mode for longer periods than the computer is programmed to expect. The question is why? Is the engine actually running lean in that bank, or is the sensor failing?

The computer is getting a signal or else the computer would not be reporting the lack of switching. Make sure the connection is good, then check for vacuum leaks. If the sensor has more than 50K on it, and the engine does not have vacuum leaks, it most likely needs to be changed.

The codes indicating an ignition problem can be checked out by doing the DIS tests that have been posted numerous times (do a search). The CID sensor is included in the tests, as are the coils, the CPS, and a few other pertinent components. The tests are conducted with a DIGITAL Multi-meter (NOT an ANALOG type meter) and a LED test probe (NOT an INCANDESCENT probe). If you have further question about the tests post them.

Lastly, the 332 code (insuficient EGR flow detected) does not mean that the EGR valve is faulty. As pointed out above the DPFE could be the problem, or the connection or wires between it and the computer.

Keep in mind that a fault code does not mean that the sensor identified by the code is faulty. The code generally means that the signal that is expected from the sensor under various conditions is not being received by the computer. It could be a problem with the sensor, or it could be a connection problem (loose or corroded). It could also be a broken or shorted wire problem.

Keep in mind that the signal is electrical in nature, usually volts or ohms resistance, and the signal is transmitted via wires through connections. Corrosion will interfere with both volts and ohms. Start your diagnostics by checking the suspected connections and look carefully for signs of corrosion as well as any looseness or poor contact.
rangerj

 

[projectSHO89]

you could also have failed DPFE sensor but lets ck very else first , this sensor about $160 and is only aval @ Ford

This sensor is available for about $55 from NAPA among others. It is not a Ford-only part.

Steve

 

[95SHO32]

hey I ck'd them when my dpfe sensor failed and napa didnt offer it just ford ,luckly i found a used engine with a good used one for $60 including engine