ok have a crazy loss of power/ cutout while driving at freeway speed between 2500 - 3000 rpms ... have replaced throttle position sensor, idle control valve, map sensor, and cat.. all within the last two weeks... any ideas

 

bump for help

 

Any srarting issues? Is it just cutting off while driving? Does it start back up immediately? Have you replaced/checked your CPS?

Before my CPS went completely out, my heep would randomly cut off while driving down the road.

 

just while driving


by cps do you mean crank or cam

 

He means the crank position sensor.

 

yes, crank position sensor

 

that i havent replaced.. but that makes sense kinda.... its only like 40 bucks at autozone.. i guess i'll just do it....

 

try that first. If it doesnt work, sometimes a clogged exhaust will do what you are describing. Have had that happen once. All of a sudden you stop making power, and it usually happens on the highway

 

Does it do it when you get up to running temp? Mine was cutting out when it got up to temp it would cut out and wouldnt stop untill it cooled down. I replaced the pick up in my dist. and all it good. I belive some call it the cps right????

 

its not my exhaust.. just had the cat replaced and before that a cat back borla set up.. so its gotta be that damn sensor

 

any other ideas just in case

 

fuel pump and fuel filter, mine cut out on a hwy at 2500 rpms once about 3 months before the fuel pump and filter totally gave out and then 0 fuel was pumped through the lines

 

How about your rotor cap, is it getting dirty or worn out? Just a thought other than what everyone else has posted already. May have a running speeding spark problem.

 

i'm gonna change the fuel filter just to be safe but yeah its cutting at 2500 so yeah lol gotta be something stupid

 

distibutor and/or cap