my check engine light is flashing code 21,22,23, and this is with the chipped gsr ecu for h22a motor, what can be causing this and how can i fix this. i think this is the reason i dont here vtec engaging at 4600

 

21 = VTEC solenoid valve or it's circuit
22 = VTEC oil pressure switch or it's circuit
23 = knock sensor or it's circuit

 

Rather wordy, but what you need may be in here:

To prep the wiring harness, there's enough soldering to kill half your brain cells and plenty of work to stress out the survivors. Hasport also makes one that's plug-and-drive. If you go the easy way, you'll get a modified Accord harness and a separate subharness, which connects the unique VTEC guts to the H22 ECU. To tackle it yourself, get the two engines side by side, add a tasty beverage and get familiar with these mods.

·The oil pressure sender wire, while still using the Accord plug, gets extended 5 inches to reach the H22's sender.
·The electronic air control valve is located near the middle of the fuel rail on the H22 rather than near the throttle position sensor on the F22. To accommodate, the EACV plug and its yellow/black and blue/yellow wires get moved to the center of the injector harness.
·The vehicle speed sensor plug gets moved from the front to the back on the engine, near the O2 sensor plug. Same wires, different location to fit around the H22.
·Because the distributor is closer to the coil on the Accord vs. the H22, the coil, EGR, and fan switch circuits need lengthening. While on the EGR wires, change the connector from the Accord's 3 pin square connector to the Prelude's round one. You can keep the same pins, but swap out the plastic connector.
·The intake air temperature sender is located at the end of the intake manifold on the H22 vs. the middle of it on the F22. Extend its red/yellow and green/white wires to fit.
· If your car didn't come with VTEC, you'll need to add the wiring for the air intake bypass (AIB), knock sensor, VTEC oil pressure sensor and VTEC solenoid. If your car was an EX, you will only need to add the wiring for the IAB and the knock sensor.
·The knock sensor circuit (red/blue), which isn't there on the stock F22, is added at the same break out as the oil pressure sending wire by using the pigtail from the Prelude harness. This wire connects to the subharness and then to ECU pin D3.
·The H22's AIB circuit that opens the short, high-rpm runners in the intake manifold also gets added by tapping the black/yellow wire from the H22's plug to the same color wire that goes to the distributor in the Accord's harness. This simply supplies power to the AIB solenoid. The pink signal wire goes from the AIB solenoid back to the subharness/ECU at pin A17.
·The VTEC oil pressure switch wiring will already exist on Accord EXs, but the rest of us need to add the circuit. The plug from the H22 and its light blue wire gets routed to pin D6 on the ECU. The black/red wire from the switch goes to ground.
·To hook up the VTEC solenoid, connect its green/yellow to pin A4 on the ECU.
·In a futile attempt to throw us off, Honda switched the EGR solenoid valve wire and the O2 sensor heater wire on the ECU's A connector (pins 6 and 11) on the Prelude as compared to the Accord. Swap these two pins in the under-dash connector and thank the engineers for their effort.

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