Hey everyone i need some help with a typhoon problem. i had my truck parked for about 3 months, in that time i changed the stock 2 bar to a 3 bar map, i replaced the plugs wires cap and rotor, and put in the stg ultimant chip. now i took my truck out for the first time last night and it is hesitating and idling rough. it tends to die when at idle for a period of time such as an intersection.it will run fine for about a min. then the idle will drop really low and if it makes it through it without dieing the idle jumps up to about 2k. also when im crusing or accelerating once and a while it will chug out almost die and then kick right back on. i ran my datamaster and i was getting a rich o2 reading for about 25 min and then it switched over to an EST error. im not sure what EST is so i dont really know what is happening. if anybody has any ideas please help, im not quite sure where to start or whats going on.
ty newbie needs help!!
- Thread starter newtyguy
- Start date
0966Sy
Code what?
Carefully go back over your installation of the chip in the ECM. Make sure the prom is seated properly and no pinched wires. Also re-check your base fuel pressure. Stock injector Ultimate should start at 50psi with vac line off and plugged.
Making sure your ignition is up to par is a good start too.
Making sure your ignition is up to par is a good start too.