[Diy_efi] re: rich/lean and O2

Ludis Langens ludis at cruzers.com
Fri Nov 26 20:56:26 GMT 2004

> RogeranCarol wrote:
> What I didn't mention before is
> that since I'm planning on converting to multi port injection, I
> didn't want to install or buy a TBI pump, soooo, I jury rigged my
> current high pressure fuel pump (original engine was a 4.0L Jeep with
> sequential multi port injection) to run at 15psi with the TBI
> disconnected by running a metal return line from the filter output to
> the original fuel return line, then smashing the tube until I got
> 15psi.

You can use the same pump as long as you include the correct fuel
pressure regulator.

Ford used the "same" pump on a (low pressure) TBI V8 as they did on
(high pressure) port injected V8's.  With the output blocked, this pump
reaches 100 psi or so.

Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
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