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Honda accord injector voltage

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Rotherham south Yorkshire
Car
Honda accord tourer
Hi I have a 05 reg accord tourer I have just replaced rocker cover gasket and all new injector seals. Now it won't start plenty of fuel but only 5 volts to injectors surely it should be 12 volts . Anyone know whats wrong
 
Any faults on the OBD2 reader ?

Have you got a stiff manual pump and no air trapped in the high pressure side of things ?
 
Hi thanks for your reply only got a cheap reader but showing no faults. Hand pump pumps hard but then goes soft. Would an air lock cause no power to injectors?. Thanks stuart
 
I’ve only ever taken out one injector each time I needed to change a seal, but it has taken a lot of battery to start afterwards, and I’ve had to remove air from the pipes by releasing the union on the top of the engine before she would start.

Did you put injectors back in the same holes ?
 
Ye all injectors back in same place. I think I might try do a leak off that should eliminate any air. Perhaps fuel pressure could be low so ecu won't allow injectors to fire
 
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