i havent had time to test the fuel pressure BUT... i have been driving this for about 2000 miles without issues. the other day after multiple trips to the hospital for my wife the truck started to act like the throttle was not opening all the way. i verified i was getting 100 open. truck starts and runs great. passed 1/2 throttle it falls flat on her face. no power at all and struggle to climb past 4000 rpm. if i stomp it i cant even break the tires loose. she used to break them loose from 30mph and smoke them with ease from a dead stop. should i look at anything else? engine sounds healthy and doesnt miss but it is a stock pump. im wondering if the stock pump is just not enough to run the engine. is it time for an aeromotive pump upgrade?

 

How olds the fuel filter? was it all of a sudden?

 

yeah it was all of a sudden. one stop light i had power and when i went through the tunnel it had none. both filters are new. the inline under the door and the vette style im running at the rail. im thinking of replacing the pump with a returnless style to get rid of the vette filter.

 

started the truck to move it today and after 5 minutes of running the fuel pump relay was hot. i have an issue i think with the pump. ill get a chance tomorrow to check the pressure.

 

58 psi KOEO and 62 psi at idle.

 

Do you have it vacuum regulated?

 

I got similar symptoms a while back. Turned out to be an O2 sensor that was on its way out. I would check all the exhaust bolts to see if there is any one missing or ones that need to be tightened.

 

the rear O2's are tuned out. i do have a small leak at the y pipe.

i am using the corvette fuel filter so the regulator is in the filter

 

have any way to log? my bet would be a faulty sensor putting you into the wrong area of your tune. TPS? front O2? cam and crank sensors would probably just leave you sitting on the side of the road.

 

i have HP tuners. never tried to data log. let me see how to do that and post it here. give me some time. baby is due any minute so i cant leave the wife alone long.