Multiple error codes

[awojtowicz]

i had an error code of p2004 on my 05 expedition. we changed out the intake manifild runner control. that error went completely away but now i have 3 other errors showing up with check engine lit up. i have P0171 (bank 1 combustion too lean), P0113 (intake air temp sensor 1 circuit high input) and P0202 (Cylinder 2 injector circuit malfunction). We changed out cylinder 2 fuel injector. the engine was real rough like when a coil pack goes. so we changed out a new spark plug and coil pack. now everything seems to run fine but the check engine stays lit and the same error codes are still there. i also changed out air filter. what do you think the problem is? im scared to think the intake manifold has to come off again. that was an all day job.

thanks

 

[Bedrck47]

Did you clear the codes?
Very possible that you have a wiring problem and that a splice may have come loose when you changed the intake and moved things around

 

[Bedrck47]

Go back and re-check all connectors to make sure a pin didn't get moved or a bad connection.

 

[awojtowicz]

battery was unplugged but no i didnt clear codes. usually it takes 100 miles of driving and the codes clear. there was a problem with wiring when we took off intake manifold plenum. wires were worn. probably the whole problem but we changed out IMRC anyway since it was off. we rewired the breaks in wires.

 

[Skauber]

P0202 usually means the injector isn't properly plugged in, check the connector and make sure it's making a good connection. P0171 is probably related to the injector that isn't working. P0113, if I'm not mistaken, the intake air temp sensor is integrated in the MAF sensor. Check the connector going to the MAF and make sure all the wires are making good contact.

 

[awojtowicz]

P0202 usually means the injector isn't properly plugged in, check the connector and make sure it's making a good connection. P0171 is probably related to the injector that isn't working. P0113, if I'm not mistaken, the intake air temp sensor is integrated in the MAF sensor. Check the connector going to the MAF and make sure all the wires are making good contact.

where is this MAF sensor?

 

[Bedrck47]

should be on drivers side in the air intake box

 

[Bedrck47]

If you disconnected the battery (for about 10 minutes) that should have cleared the codes Then it should take around 50 miles of driving for the system to relearn and then codes would appear.

If you started having codes reappear then I would say you missed a wiring connection or more than one Recheck all connections

 

[Skauber]

If there's an injector not plugged in or bad connection to a sensor like the intake air temp sensor, those codes will reappear instantly when you turn on the ignition after clearing codes, as the PCM does a self check and checks stuff like sensors and outputs and such..

 

[awojtowicz]

well i drove home yesterday and after stopping in a store on way home the check engine light went off. i guess it took 200 miles to reset. thanks for help.