Update on fuel pressure problem

Fix the O2 sensors and dump the codes.

Dump the codes and see what the computer says is wrong…Codes may be present in the computer even if the Check Engine light isn’t on.

Here's the link to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for years, and it works great. You watch the flashing test lamp or Check Engine Light and count the flashes.

See http://www.troublecodes.net/Ford/





If your car is an 86-88 stang, you'll have to use the test lamp or voltmeter method. There is no functional check engine light on the 86-88's except possibly the Cali Mass Air cars.



89 through 95 cars have a working Check Engine light. Watch it instead of using a test lamp.



Codes have different answers if the engine is running from the answers that it has when the engine isn't running. It helps a lot to know if you had the engine running when you ran the test.

Trouble codes are either 2 digit or 3 digit, there are no cars that use both 2 digit codes and 3 digit codes.

For those who are intimidated by all the wires & connections, see http://www.actron.com/product_detail.php?pid=16153 for what a typical hand scanner looks like. Normal retail price is about $30 or so at AutoZone or Wal-Mart.

Or for a nicer scanner see http://www.midwayautosupply.com/pc-7208-90-equus-digital-ford-code-reader-3145.aspx – It has a 3 digit LCD display so that you don’t have to count flashes or beeps.. Cost is $30.

Ya, fix the o2's, they are more of a necessity, not an option.

Why use a used pump setup? A replacement walbro 155 pump is only like $60 on the internet.

I'd get the carb idea out of your head.
A. It will devalue the hell out of the car
B. The Efi system is pretty simple
C. A carb can be even more of a PITA, between parts and setup.

Be patient, and fix problems 1 by one, till they are all gone.

Once you fix the o2's, get the codes and take it one step at a time.

Also, DO NOT use any cheap chain store electronics. If it has wires connceted to it, use only real ford.