Why wouldnt my car start after i cleaned ERG valve

Is this engine equipped with an EGR valve? Might have carbon deposits blocking the passageway causing the stalling problem.

you could have a sticky EGR valve, also the ign module could be going bad

Follow the link for help with this fault code P1405 Ford DPF EGR Sensor Circuit High Voltage Detected

I suggest you replace the EGR valve position sensor.

Are you sure you have EGR flow?? Hold the EGR valve open the engine should run poorly, if not you have no flow.

Three of your EGR intake ports are likely blocked up and need to be cleaned. The one that's free is receiving too much egr gas and that's what causes the engine to stumble. It's a common problem, but one that's usually misdiagnosed, with that 2.2L Accord engine. Have the ports cleaned out asap or the cylinder one that's getting all the excess egr gas will burn out it's intake valve and cost you much more to repair, requiring the engine head to be removed.

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clean MAF sensor heated wires with spray carb cleaner first

The idle would be rough. And the check engine light will come on. It can be cleaned out or replaced, They are about $50 and up. Hope this helps.

the egr should be replaced or removed and cleaned with a good carburettor cleaner and checked for operation. the 34 refers to the knock sensor not having the right info to be sent to the ecu(in simple terms). you may have to replace the knock sensor but this is in the centre of the engine under the intake. takes a few hours. plan of attack: first have the vehicle scanned for p0 codes and with a scanner that reads "live data". what youre looking for is when youre accelerating the engine timing should be changing. if its not, change the knock sensor. then attack the egr which may be a little more difficult to fix. try the cleaning and check for operation. verfity all hoses are good and routing is correct. verify vacuum at the source. what causes an engine to start running great is it is dragging the affected cylinder and can longer be felt at those rpms. it wouldnt hurt to perform a compression check on this either. let know. cheers

Very common on Ford engines with EGR codes is the tube inside the intake manifold that takes unburned exhaust gasses and recirculates them back into the engine for reburning,the tube becomes restricted from hydrocarbons and just plugs up.The intake manifold and tube has to be removed and thoroughly cleaned.

it will not be egr valve ,check the timing of the engine first and eliminate this then make sure you have used the correct plugs then start looking at, oxygen sensor , air flow meter but check timing first