Car wont run HELP!!!!!!!!!

[Cordova_1]

I have a vortech s-trim supercharged 306, and I just changed my intake from a GT40 to an Eldebrock RPM II,changed out BBK Shortie headers, and 2 1/4" h-pipe,and installed 1 3/4" long tube headers and 3" x -pipe. The problem is its running rich now for some reason. My check engine light was coming on saying that the car was running lean, and maybe the computer was trying to compensate for that with extra fuel. I tried adjusting the fuel pressure, and now the car will run at idle, but when you give it gas the check engine light will come back on, when it idles down the check engine light goes off. WTF!!!!! Does anyone know what could be causing this? Also, at idle, my boost gauge reads 10 on the vacum side. When you rev it it goes even further to 20 on the vacum side. Any help will be greatly appreciated. BTW, the car was running fine until I made these changes.

 

[seijirou]

Did the new exhaust move the location of the o2 sensors? I've dealt with alot of cars having a/f problems when going to longtubes, because the o2's are moved too far back.
I've seen it fixed effectively by relocating the o2's, and also with a chip or one of those do-it-yourself tuners.

 

[jrichker]

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.

Or for a nicer scanner see http://www.midwayautosupply.com/detailedproductdescription.asp?3829 – It has a 3 digit LCD display so that you don’t have to count flashes or beeps.. Cost is $33.