Tuning out trouble codes.

I can finally read my stock ECU with the piggybacked FAST system. Now, I'm getting the following codes:

48 - MAF fail
41 - EST Open
43 - Knock sensor (probably because I broke the wire changing a spark plug)
18 - Injector something or another

Can I tune these out? At least enough to pass safety?

TIA.

And it looks like the answer is yes. Bryan at PCMForLess says he can hook me up. :)

Do they actually hook up to an OBD-I PCM and read the codes as part of the emissions/safety check? I thought that was only used for OBDII.

I run the stock ECM in parallel with a MoTeC, and simply cut the wire for the SES bulb.

I was under the impression that they did. At least my mechanic said that if we couldn't connect at all (which was a previous problem) we couldn't pass.