1995 Honda Prelude Running RICH!!!!

1995 HONDA PRELUDE
15,000 MILES • 4 CYL • FWD • MANUAL
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TRENT94
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I swapped my 1995 prelude with a jdm h22a with 30,000 miles on it. the fuel pump wont turn on, which i think is main relay, but when was running it was extremely rich! It would barely idle it was so rich! It has a h23 ecu and wiring harness on it, but i need this thing running asap! its an obd-1 car and so is motor! Please help!
Jul 18, 2009 at 5:55 AM
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RASMATAZ
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Running too rich:

Possible causes include a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode
Jul 18, 2009 at 5:56 AM