'89 GT surges then dies?

DemonGT

Founding Member
May 24, 2002
871
51
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Sparta,WI
just bought a 89 GT and it has a built 306...TW heads TW stage one cam TW intake with the rest of the goodies and its even girdled....but some times when you start it it surges real bad then dies....was thinken mabe its running to rich? it has a adjustable regulator but no gauge....any ideas?
 
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.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 $35.
 
didnt think codes mattered as there is no check engine light



keep in mind the car dosnt die every time..after restarting/reving it awhile it will eventually find its idle and run good...
 
DemonGT said:
didnt think codes mattered as there is no check engine light

keep in mind the car dosnt die every time..after restarting/reving it awhile it will eventually find its idle and run good...

There can be codes set even without the Check Engine Light being on.

See the sticky "Help me create the Surging Idle Checklist" at the top of the forum for more help with your idle problems.