Sorry for my english im a french canadian!!!I have a mustang gt 90 and I rebuilt the motor!!!My problem is when I give gas the car dont want to take it but the run fin on idle!!Im be glad if anyone can help me!!!
Are you able to provide more specific information about what is happening? The Google language translater might help if your automotive vocabulary [in English] is not very good. Or maybe one of the French speaking members here can help with translations.
it kinda sounds like your timing might be advanced a little to much, try timing it down using a timing light at 10 degrees. also make sure that you pluged any vacuum leaks that can make a difference. if that dont work it might be your ignition module. try it and see whats happens.
The problem is when I give gas the motor look like it working juste on 6 cylinder, the rpm goes up but slow and sometime look like it working ok!!!But the idle run ok!!!
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.
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.
also doubole check your plug wiring..I have seen the 302 non HO wiring diagram used..the car will idle OK but not run for a damn when throttle is applied. As stated above check timing, and codes. Good luck and keep us posted.
Ok now I put my TPS at the good spot, play with my timing and the car look OK so I take it for a little ride and when Im on my way back start runnig bad again!!!So what do you think I need to dump the code!!!