Just got the car back together after putting on a new headgasket. Of course while I was in there I thought I had better do some other work too, so I replaced the motor mounts, water pump, and had the turbo rebuilt. It's all back together now, I turn the key, and it cranks, but it won't start. There's spark on all plugs, it's getting fuel, and there's pressure coming out of the exhaust pipe, so I don't think I messed anything up. Looking around in the FAQ, it looks like it might be an RPM sensor, but I'm somewhat confused. I think my car has LH 2.2, and it seems like that means it shouldn't have one. I've read 88+ for RPM sensors, but I've also read they're only on 2.4.

Anything to try would be greatly appreciated. I'm a poor college student, so avoiding a trip to the shop would be great.

If it helps:
'89 760 Turbo Sedan
Built in Aug. 88
150,000 miles
K Block Engine


Thanks in advance!