I want to clean some fuel injectors by running spray cleaner through them. Every how to I see on the net says to run 5V to them to fire them. Does it have to be 5V? My battery charger can supply 6V. Is that too much? Would a 5V phone charger have enough amperage to work?
------------------ 1986 SE Aero coupe.
3.4 DOHC swap is complete and running, now just have to finish the rest of the car...
They run at 12 volts, a 9 volt battery usually will fire them. I don't think 5 volts will do it most of the time. Some times even 9 volts won't pull them in. Larry
Who knows, 12 volts is supplied to the injectors and they are turned on by grounding the return wire. That is how it works. Looks like you are another person who believes what you read on the internet. Larry
Who knows, 12 volts is supplied to the injectors and they are turned on by grounding the return wire. That is how it works. Looks like you are another person who believes what you read on the internet. Larry
That was a bit harsh. If that was the case, would I have asked here?
The wiring diagrams show it as 12V with the switching performed on the ground side, and I was planning on using 12V, but all of the info I saw online said 5V. Just wanted some verification.
It would be nice if they ran on a regulated supply like 5 volts, it would help the ECM to control them with better accuracy. But they run on battery voltage, and the ECM attempts to tweak the fuel pulse slightly based on what the voltage at that moment happens to be. The variable voltage is a source of error. I assume that a regulated 5 Volt supply would have to handle lots of current to drive the injectors, making it uneconomical.
