Hey guys.

I have a 2005 axela (3) Japanese import running the 1.5L ZY.

I have the dreaded p0351-p0354 codes, I have replaced the spark plugs, ignition coils, checked continuity on the 3 leads on each plug and have continuity, plugs are clean on the coils and PCM.

I have removed the PCM from it's holder on the air box, I did a visual inspection of the board and couldn't see any faults.

Just wanting to know what you guys could suggest, besides reflashing the PCM.

Thanks in advanced.

 

How does the vehicle perform when driving?

 

The car seams to be driving as if nothing is wrong, A slight droning noise at idle, But with saying that I have only just started it back up after about 3 months of it sitting around doing nothing.

It had the P0351 - P0354 errors before I parked it up.

 

I tested what I could on the 3 pin COP Coil packs, all 4 have a resistance of 1.83K ohm on pins the postive and ground pins.
I could not test the trigger pin as I have no way of testing hz.
i reset the PCM through ForScan and it cleared the codes for about 10 minutes when it came back as pending codes, and then of course it ended up confirmed.