Re: The dash gauge reading wrong.
The display like in your truck where a problem before those truck even got old.
They look nice.
They are a high failure item.
If the sender resistance reads even close to where it should, then suspect the instrument panel as the problem part.
Quote:
So, you think the fuel pump works at higher volume/flow, but not at low volume/flow? It sure works fine at anything above 750 RPM when in gear, AND at 750 RPM when out of gear.
|
No,
At idle the injector pulse is so short that when the pressure is low, TBI systems go very lean. At high rpms & loads the injector has much longer pulses, spending more time open, and they do better with low pressure then at idle. That's the way it is. Do a search on my threads and see if you think I know what I am talking about. I am giving you my honest opinion. I have no reason to steer you wrong. I know nobody that knows the TBI trucks better then I do.
This is not a carbureted engine you are working on. You are thinking about fuel supply like it is carbureted.