Fuel line Leak???

GTthunder

New Member
Oct 24, 2004
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recently my MPG has plummeted and i dont know why. I just used nearly half a tank of gas(5 gallons) in two days only driving around 30 miles. ive been checking under the car for leaks but didnt see any wet areas or felt anything. I dont know whats wrong so please help.
 
you have no leaks or you would know it. i think i know what your problem is. i am guessing it is efi. my v6 was doing that so i checked the colors of the spark plugs and all but one was normal. the one was black and sooty. i replaced that coresponding injector and it fixed the problem and ran a little better and save way more fuel.
 
Dump the codes and see what the computer says is wrong…

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.

See http://www.troublecodes.net/Ford/
OR
See http://www.dalidesign.com/hbook/eectest.html for more descriptive help
OR
See http://www.mustangworks.com/articles/electronics/eec-iv_codes.html

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.

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 Walmart.