Codes Codes and more codes, Opinions appreciated!
 

Hey guys, Just recently had time to start troubleshooting the problems on my 06 GT. Long story short i'm about to enter legal battles with the dealer that sold the car to me, but aside from that Heres the story so far,

pulled the codes and have the following so far:

P0411 Secondary Air Injector Incorrect Flow
P2070 Intake Manifold Tuning Valve Stuck Open Bank 1
P0410 Secondary Air Injection System
U0155 Lost Communication with Instrument Panel Cluster (Ipc) Control Module (here is the reason why im taking him to court, mofo disconnected the CEL)
P0300 Random - Multiple Misfire Detected
P0301 Cylinder 1 Misfire Detected.

So I changed the plugs out, (which were by the way, in terrible condition)..still had all the same codes. I bought two new ignition coils for the front rotor, and put those in, I now no longer have the P0301 Cylinder 1 Misfire, so thats progress.

From the research I can gather, anything involving Secondary air has to do with the airpump correct? Anyone have any idea on where to start with this?

Also, looking into the P2070, I'm led to believe that is the Secondary Shutter Valve...which I guess would explain partly why my powerband in the upper RPM's is so wonky. (between 4.5-7 it has a flat spot almost)

The P0300, Random Misfire, I'm thinking that might be a clogged cat, which might be contributing to my lack of steady power in the high RPM band.


Anyway, enough of all my rambling, I'm just curious as to if I am on the right track, and if you guys could give any advice or insight. I appreciate it!

Yes, looks like you are on the right track to me.

Okay, so at least I know im generally on the right track. My next step is to gut the cat and clean the SSV.


Can any of you guys offer advice on where/how to start troubleshooting the Air injection system codes?

P0411; secondary air incorrect flow. loosely translated, the air pump air is injected into the exhaust manifold. since this air is before the o2 sensor, the PCM can "see" it.

incorrect flow = the PCM is not seeing the air pump air. (or possibly too much)

since you don't have the code for the air pump not being plugged in, step one is to verify that the air pump functions. step two is to make sure the tube to the exhaust manifold isn't blocked. step 3 might be to make sure the control valve is working (i think its job is to keep exhaust gasses out of the air pump)

How am i to test if the airpump functions? I'm fairly sure the tube running from the pump to the manifold is easy enough to check, just make sure its not kinked,torn,etc.

Where might the control valve be? and how would that be checked?

Sorry for so many questions haha, I'm coming from the RX-7 world, things are a bit different.

you also have P0410, so ur air pump is waving bye bye at you.

change the pump and it should work

and as for random misfires, u said u only changed the first 2, change the last 2 as well. don't be cheap.

as for U0155, I'm not sure which part they manipulated, but it shouldn't be too hard to fix as long as the change is not permanent