maf or ecu... I'd help but I don't have the time to trek up to nova. I have a stock SR maf (its works) I can sell tho if your interested but I can't promise that's your problem; that's where I would start. It's easy to check the car 4 spark so try that and that'll narrow down whether or not its the ignitor chip (arc the plugs onto the block look 4 a spark). You may have screwed up the ecu up running the SAFC but if it was wired correctly it shouldn't have been a problem: pull the cover off and look for burnt resistors or chip (it'll be rather obvious). Possibly the CAS but those very very rarely go bad. The ECU's in these cars are pretty stout and they rarely go bad but then again if the SAFC was wired up crappy you might have shorted something and then you need new ECU... this is easy to test if you can find some1 with a stock n62 ecu.