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I'm hoping you can help me , I'm sorry if this has been covered before. I changed my fuel pump and replaced the injectors (still stock size ) . The fuel pump runs and is delivering fuel but its not seeming to be enough for the car to run. I have an 05 lotus Elise . And am looking for suggestions as for where to start looking for issues .
Step back a bit - why did you change them in the first place? Seems strange to have done that if there wasn't another problem already. As much background and detail as possible will help.
Thank you, I changed it in preparation for changing the fuel injectors to much larger ones . I'm going the route of turbo charging . There were no issues prior to changing the pump/injectors
I guess the obvious then is the wiring - make sure all connections are solid and that everything is connected to what it is supposed to be connected to.
Ok , so the latest is , I checked , it seems like it's the fuel injectors , so I checked the electrical , everything seems fine on that end. For kicks I tried installing some brand new 550cc injectors I had laying around for when I turbo charge it. It now runs (lean as I expected with that ) . Does that mean the other injectors were bad or clogged ? So I guess that means I just need to do a tune or get new injectors that are working ?
I'm curious how you connected the 550 injectors as they have a different electrical harness than the stock injectors, at least on my car they do. You say you put in stock size injectors, but what injectors did you install?
The new ones were by AUS and they have an adapter that's $10 ea plug and play. The others were the stock denso ones I don't remember what the size is I'm sorry.
This is a return-less system, so if you put a bigger pump in to prepare for a later upgrade of the injectors.... I am not sure this could be an issue, I am trying to work it out in my head and spit balling.
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