Hey, im new to this..i have a 2001 for escort zx2. it has been competely rebuilt motor and def. fuel system over haul..all the parts on the car can be read on this web site...
http://www.cardomain.com/ride/250014...eensboro-nc-us The car has been running fine but lately...i have been going down the highway and the car will shut off...Now its getting worse and worse..It will shut off as soon as i take off or it seems to do it when i put it under load... Also, while the car is sitting there idleing, it will rev on its own to like 2000 or 3000rpms. I replaced the Throttle postion Sensor, cam sensor, crank sensor and i replaced the IAC valve(which is what i thought it was) Im so upset about this car because i have so much money into it an take care of it and it just seems to just throw up on me.. Let me mention that the fuel system is fuel cell inthe trunk, external fuel pump, fuel reg, 630 injects, and obx rail...it has never givin me any problems and i have fuel pressure gauge, oil, and boost all working fine...
Again... I start to go and it will shut off..the fuel pump is on a switch so when the car shuts off the pump is still running...Turn the key off and back on and the car fires back up....
Now, if i rev the car high and take off like im racing...she runs good..but regular starting to go(like from a stop sign or somthing) she will shut off..
If im racing down the highway, she runs awesome....but if i just regular drive down the highway, she will shut off..
Someone please help..im pretty good at this stuff but im just stumped... Thankyou alot any thoughts will help..