97 honda accord wont start?

I have a 97 Honda accord. Recently it was overheating and we sent it to a mechanic who replaced the radiator and now it runs fine. Two days later i stopped at a stop sign and it sputtered as if it was out of gas then would die. The rpms were fluncuating. It continued this for another day or so and and now refuses to turn over. It will crank but not start. We tried replacing the distributor cap, spark plugs, egr valve. Our neighbor checked the spark plugs and it was barely getting a spark and he thought it might be the ignition control module. We have yet to change it due to lack of money atm. The codes are P0171 fuel system too lean bank 1 P0401 egr system insufficient flow detected p0441 evap system incorrect purge flow p0740 a/t lockup clutch system malfunction. Any ideas?

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